A great start. 407whp/376wtq.

This is one of our clients 04 STi's. After logging enough miles to get the motor broken in, it was time for the tune. A quick rundown on his setup is as follows:

04 STi
Hydra
DR65 turbo
Crawford S2L shortblock
Stock heads and valetrain
Perrin fuel rails
PE 850 injectors
APS front mount
APS exhuast

I was having alot of trouble getting the Perrin boost control solenoid to properly control the internal wastegate of the DR65. Most of the tuning session was spent trying to get the boost above 20psi. When I wasnt happy with the boost response, I decided to keep the boost at 20psi and tune from there until other boost control means could be had. The car responded great to the tune and is a beast on the street. The car will be retuned after the boost control issues are resolved.

The red trace is the initial dyno run after getting fuel and timing safe and running wastegate pressure which was about 11-12psi. The blue trace is the end result of the session.

http://www.we-todd-did-racing.com/wetoddimage.wtdr/wMTA1MTc0NTZzNDEzZGZkMzF5NTQx.jpg

Seems laggy. Not hating, just calling it how I see it.

^^That is only the HP curv I would love to see the TQ dyno aswell

+1 on seeing the torque curve

<<< just went for a ride in this car...

:banana: :banana: :banana:

overlay of trq please :banana:

http://www.longwoodpc.com/images/tq.jpg

there ya go

oh by the way it's a crawford S3L :)

I will put up a torque plot when I get back to the shop thursday.

LOL, hows that for service.

I just took a shot in the dark with which block it was.

oh cools so once you get the boost under sontrol you can turn that up a good bit especialy on race gas!

We Have Video :eek:
http://www.longwoodpc.com/video/04STi.wmv

That is about as laggy as the 40r on stock block! Wow.. Go APS!:lol:

Hopefully when you get the boost figured out the you can move the curve to the left a little.....

That is about as laggy as the 40r on stock block! Wow.. Go APS!:lol:

http://www.dionysians.org/forum/images/smilies/jerkit.gif

Congrats :)

Those are some good numbers for pump gas.

www.crawfordperformance.com

AFR curve? Good peak power, I would want to smooth that out some if you could though....

Here is the AFR, and thanks crawford, you guys are great!
http://www.longwoodpc.com/images/afr.jpg
That is about as laggy as the 40r on stock block! Wow.. Go APS!:lol:
At least the shop I took my car to knew the difference between this
http://www.longwoodpc.com/images/ngk_plugs.gif
and this
http://www.longwoodpc.com/images/spark1.jpg

Go try and push your http://www.longwoodpc.com/images/kingpin.jpg kits somewhere else
like here http://forums.nasioc.com/forums/forumdisplay.php?f=23
or here http://forums.nasioc.com/forums/forumdisplay.php?f=111

Advice or constructive criticism is always welcome
but don't start comparing or trying to push your product
thats not what this thread was started for

Wow....rich afr's for spoolup...and what's that spike at 4500?

AFR curve? Good peak power, I would want to smooth that out some if you could though....
Yea, we were having problems with the perrin ebcs, looking to get a manual boost controller so we should be able to smooth that out and make some more power. :)

Here is the AFR, and thanks crawford, you guys are great!
http://www.longwoodpc.com/images/afr.jpg

At least the shop I took my car to knew the difference between this
http://www.longwoodpc.com/images/ngk_plugs.gif
and this
http://www.longwoodpc.com/images/spark1.jpg

Go try and push your http://www.longwoodpc.com/images/kingpin.jpg kits somewhere else
like here http://forums.nasioc.com/forums/forumdisplay.php?f=23
or here http://forums.nasioc.com/forums/forumdisplay.php?f=111

Advice or constructive criticism is always welcome
but don't start comparing or trying to push your product
thats not what this thread was started for

I was comparing a 40r turbo to this turbo. There was a huge debate where a crooked vendor had listed on their site"real deal gt40r" for the aps dr65, got into a huge pissing match about how the dr65 will spool faster, and make more power then a 35r.. It isnt even a real deal anything, it is an aps comp housing, turbine housing with a garret cart. Mean while it is spooling as slow as a 40r, and the 35r is completely embarrasing it down low.. Not knocking the tune, just the APS cronies.

Doesnt have to be our 35r kit, any 35r kit will embarrass that turbo. :lol:

Oh and if you have problems be more then happy to pm me. I didnt even mention out kit there pal, but thanks for the publicity :D

Seems laggy. Not hating, just calling it how I see it.

+1 on the lagginess... were these stock wrx heads or 04 sti heads? If sti, doesnt look like avcs was working

Yea and I don't wan't that pissing match in this thread, no one ever said it was a GT40R in here, and I'll say again we were only running this at 20psi with pump gas

Yea and I don't wan't that pissing match in this thread, no one ever said it was a GT40R in here, and I'll say again we were only running this at 20psi with pump gas and a ****ty ebcs.

Not knocking the power, just spool up.. Hopefully when you get a functioning boost controler it will reshape the curve. I am curious however to see if it is ebcs or just that small comp, and turbine housing.

I was comparing a 40r turbo to this turbo. There was a huge debate where a crooked vendor had listed on their site"real deal gt40r" for the aps dr65, got into a huge pissing match about how the dr65 will spool faster, and make more power then a 35r.. It isnt even a real deal anything, it is an aps comp housing, turbine housing with a garret cart. Mean while it is spooling as slow as a 40r, and the 35r is completely embarrasing it down low.. Not knocking the tune, just the APS cronies.

Doesnt have to be our 35r kit, any 35r kit will embarrass that turbo. :lol:

Oh and if you have problems be more then happy to pm me. I didnt even mention out kit there pal, but thanks for the publicity :D

1. DR65 Might spool faster than the 35r.....we'll see
2. DR65 will probably not make as much power due to .63(DR65) ar vs .83(35R)
3.and as far as embarrasing It, I think not.

DR65 and GT35R are both nice kits for STI's plain and simple, the end, no more

+1 on the lagginess... were these stock wrx heads or 04 sti heads? If sti, doesnt look like avcs was working

iirc, rebuilt 04 heads, no avcs

gt40r map overlay:

http://x7.putfile.com/8/24222200871.jpg

Talk is cheap. :D

also, I overlayed a 35r pump map, spool is about 500rpm quicker in the 4-5k on the 35r, almost equal at 5.5k, then the 35r flattens out at 6k at 420, while the dr65 starts to fall down a little iirc

iirc, rebuilt 04 heads, no avcs

gt40r map overlay:

http://x7.putfile.com/8/24222200871.jpg

Talk is cheap.

Yea look at that low end man.. almost dead on.. That was a BASE 40r pull.. Car made one pull and was right to race gas.. Look how close spool is, that is on 91 octane in 120deg heat :lol: The purpose of even putting the car on the rollers was race gas, it was just dynoed on pump to see what it baselined from a street tune..

You wanna over lay a 35r plot and see the almost 75-100lbft it has over the dr65 at 4k rpm? ANd made 420whp on 91 pump gas.

I dropped it, but if you want to see how it embarrases it down low be my guest..

iirc, rebuilt 04 heads, no avcs

gt40r map overlay:


Talk is cheap. :D

also, I overlayed a 35r pump map, spool is about 500rpm quicker in the 4-5k iirc
just called it as i saw it ;) , thanks for the comparitive info

iirc, rebuilt 04 heads, no avcs


That explains alot.. Get avcs going, and post back..

If this is going to continue, I would like someone to post graphs of a GT35R
ON PUMP GAS, and a GT40R on PUMP GAS. Also would like to know the boost levels, thanks....NO OVERLAYS please just graphs , I just wanna look at them all now that this has gotten crazy

If this is going to continue, I would like someone to post graphs of a GT35R
ON PUMP GAS, and a GT40R on PUMP GAS. Also would like to know the boost levels, thanks....NO OVERLAYS please just graphs , I just wanna look at them all now that this has gotten crazy

Calm down man.. 91 pump fuel.. 22psi..
http://www.kingpinperformance.com/main/images/91-gt35r.jpg

F1dyno's wth UR gt35 .63ar i believe.
http://www.f1dyno.com/pictures/albums/F1Dyno_Runs/Scan0001resize.sized.jpg

as for the avcs, they are rebuilt 04 STi heads and are working

what psi is this on the 40R pump gas
http://www.longwoodpc.com/images/pumpbasevspumptune.jpg

try to stick with dynojet please, makes it easier to compare, and on that f1 what kinda gas and boost

what psi is this on the 40R pump gas
http://www.longwoodpc.com/images/pumpbasevspumptune.jpg

Sure was.. It was a baseline. Clark didn't want to push the stock motor on pump, as we needed it for the race gas,and it was about 114 on the dyno(dyno is outside).. Nothing impressive, just note the low end is pretty similar. That is all i was getting at, wasn't trying to start **** here, or down your build just couldnt believe seing it in print like that, how laggy it is.

D-

try to stick with dynajet please, makes it easier to compare, and on that f1 what kinda gas and boost

93 24psi..

just caught this thread.
Whos car is this? norris or nibblegimbals? Is AVCS working or not? your posts conflict.
BTW, THat A/F curve looks like a crazy roller coaster ride :lol: similar to what some of my dot co.m stocks did before they took a dump :(

am i too late? :p
http://x7.putfile.com/8/24223272372.jpg

oooooops, top is a 35r, bottom is a 40r, its getting late... :D

car is mine, nimble was mis informed about my heads, he thought they were 04 wrx heads and not sti. They are 04 STi with avcs.

am i too late? :p


Lil bit :lol:

cronic... was that first graph a 40R like nimble thinks or is it a 35R... you didnt say so...

car is mine, nimble was mis informed about my heads, he thought they were 04 wrx heads and not sti. They are 04 STi with avcs.

Ok back to your car man.. Sorry for ****ting on this thread like that.. But i honestly didnt mean it to turn into this ****.. Again i just couldnt believe that spoolup, and it triggered me to make an anti APS post.. :lol:

Sorry

Also, I don't want to take any of the shine away from Xoticmotorsports
they would have put an awesome tune on the car if it was a DR65, 35R, 40R,
or a tenbillionR. thanks again xotic

cronic... was that first graph a 40R like nimble thinks or is it a 35R... you didnt say so...

35r man.. I wish the 40r spooled like that.. I would have one on my car.. :p
Also, I don't want to take any of the shine away from Xoticmotorsports
they would have put an awesome tune on the car if it was a DR65, 35R, 40R,
or a tenbillionR. thanks again xotic

I agree i have been there when i was living out east, and they are a great bunch of guys.. Very open with their shop, and very helpful!

D-

Wow. Too much business going on in this thread...

Stop being so politically correct - I'm just a lowly consumer (who has yet to upgrade his STi), and can plainly see that a Green, SZ55FB, or even a GT35R looks better than this curve. Say nothing, or call it like it is, and don't apologize.

It doesn't mean the tuner who did the work is poor, and most (those willing to spend) on this forum understand this... If this tuner is in my area, I would certainly think of contacting them, just not about this particular turbo.

Use this forum as an information source - and an analysis tool, not for marketing.

Wow. Too much business going on in this thread...

Use this forum as an information source - and an analysis tool, not for marketing.

I didnt even mention anything about where i work, untill i was called out on it.. I was just comenting on that dr65, and how laggy it is..

And inadvertantly commending you for it... but don't think you should have backpedalled, nor continued conversing about it. Your numbers and reputation speak for themselves.

They laid down some unimpressive numbers for the corresponding lag. Moral of the story, for me anyway: not the best turbo for us - nothing implied about the tuner.

The picture isn't complete yet, dont make your judgement on the turbo untill the boost is turned up a little with a good boost contoller. Even if the graph still looks laggy after the tune, the car drives and feels great. Will have to get some more graphs and some timeslips later to show all that the DR is not a hunk of junk like some make it out to be.

And inadvertantly commending you for it... but don't think you should have backpedalled, nor continued conversing about it. Your numbers and reputation speak for themselves.

They laid down some unimpressive numbers for the corresponding lag. Moral of the story, for me anyway: not the best turbo for us - nothing implied about the tuner.
HA!
the lag isn't that bad
and 407hp on pump gas = unimpressive = your full of ****

and as I said earlier this is just a start for this tune and car. so don't go jumping to conclusions and trying to sway people away from this turbo before you get all the facts. and for anyone who wants to know more about aps running 11.5's on the smaller DR check this out http://www.airpowersystems.com.au/us_spec/subaru/sti/2004_sti.htm

My judgement does not (nor does anyone else's judgement) make any difference. That's the point of this forum, and the point I was trying to make. Everyone's hungry for more info, more options, etc. There's no need to underestimate the reader and further clutter the thread (like I'm doing). Just post the data and discusss specifications/performance/analytics. We can make up our own minds about what to buy and who to buy it from, if we decide to modify. When posting here, post simply as an enthusiast.

My judgement does not (nor does anyone else's judgement) make any difference. That's the point of this forum, and the point I was trying to make. Everyone's hungry for more info, more options, etc. There's no need to underestimate the reader and further clutter the thread (like I'm doing). Just post the data and discusss specifications/performance/analytics. We can make up our own minds about what to buy and who to buy it from, if we decide to modify. When posting here, post simply as an enthusiast.
forget it

Didn't see posts 48 & 49 before posting #50. I take it back. It seems I would not deal with this vendor. Great job swaying the impartial member with your professionalism...

LoL 48 & 49 have nothing to do with the vendor, NOR am I the vendor, nor do I work for them. only posting my personally opinion on a product I own.

Frustration understood. Back to regularly scheduled thread.

anyway chronic now that we both know that e nick dosent know who he was talking to or about. as for our discussion, i think it started as a bar fight and ended up as a good discussion about the differn't BIG turbos. and sorry if I called you out or anything like that.

I didnt even mention anything about where i work, untill i was called out on it.. I was just comenting on that dr65, and how laggy it is..


I'm not so sure it's the turbo and not the tune... There are two issues. Boost control with the ebc, and less than perfect a/f during spool.

I would imagine once the boost issues is cleared up they will clean the a/f a little. ;)

I'm not so sure it's the turbo and not the tune... There are two issues. Boost control with the ebc, and less than perfect a/f during spool.

I would imagine once the boost issues is cleared up they will clean the a/f a little. ;)

That is why i said get a boost controller and report back..

Either way, it is laggy as hell. They may gain 4-500 rpm of spool but there isnt going to be any miracles.

Those are really strong numbers for that turbocharger. Congratulations!

I think if you clean up that rich spot during spoolup and switch boost controllers you'll do much better. If you know what you're doing you can get that ebc to work but it takes alot of time to tune.

Also keep in mind the dyno run wasn't started until 3200 rpm which will naturally shift everything to the right. Starting at 2K rpm would have resulted in quicker spool up.

Thanks,
Phil
www.elementtuning.com

I'm not so sure it's the turbo and not the tune... There are two issues. Boost control with the ebc, and less than perfect a/f during spool.

I would imagine once the boost issues is cleared up they will clean the a/f a little. ;)

That A/F for that dyno pull was the richest it was on spoolup. I just wanted to see if increasing the density of the exhaust with a richer mixture would help spool for this turbo.

This car is no where near done, there are some definate changes that need to be made. I just wanted to get some information out there on the DR65 because it is very hard to find and actual dyno #'s for them.

Those are really strong numbers for that turbocharger. Congratulations!

I think if you clean up that rich spot during spoolup and switch boost controllers you'll do much better. If you know what you're doing you can get that ebc to work but it takes alot of time to tune.

Also keep in mind the dyno run wasn't started until 3200 rpm which will naturally shift everything to the right. Starting at 2K rpm would have resulted in quicker spool up.

Thanks,
Phil
www.elementtuning.com
Thanks Phil.

I am not saying that we are not going to end up using the EBCS, I just want to make a few runs with a manual boost controler to see what kind of responce we get with no electronic assistance.

Congrats :)

Those are some good numbers for pump gas.

www.crawfordperformance.com
Thanks Quirt. Sorry I didnt see you back there before. :)

I have never seen posts about what people think about the perrin ebcs..... can I please get some discussion about everyones experience with it? likes, dislikes? worthwhile mod for big turbos? manual better?

See what this turbo did at the ktrperformance website. On a "heartbreaker" dyno. Not yet allowed to post the attachment or URL. Maybe someone will oblige.

Thanks Quirt. Sorry I didnt see you back there before. :)

Before the storm?

You are welcome :)

Quirt

See what this turbo did at the ktrperformance website. On a "heartbreaker" dyno. Not yet allowed to post the attachment or URL. Maybe someone will oblige.http://www.ktrperformance.com/services/Dyno_Graphs/Subaru/graph_04_STI_11_05_04.gif
http://www.ktrperformance.com/services/Dyno_Graphs/Subaru/STI_11_05_04_port.jpg
- ECUTek - KTR Tuned
- APS DR65 Turbo
- APS DR725 FMIC
- APS 3.5" Exhaust
- XXTuning Headers
- Tumble Valve delete
- APEX-i AVCR
- Power Enterprise 850cc Injectors
- Perrin Fuel Rails
- 93oct Pump Gas

http://www.ktrperformance.com/services/Dyno_Graphs/Subaru/graph_04_STI_port.htm

That engine needed to be rebuilt after that tune. :rolleyes:

In all honesty I wouldn't push a DR65 past 380 whp (Dynajet) as it only has a .63 AR exhaust which is just too restrictive for the 2.5 ltr engines.

Just my 2c.
Phil
www.elementtuning.com

That engine needed to be rebuilt after that tune. :rolleyes:

In all honesty I wouldn't push a DR65 past 380 whp (Dynajet) as it only has a .63 AR exhaust which is just too restrictive for the 2.5 ltr engines.

Just my 2c.
Phil
www.elementtuning.com

Oh damn, i just noticed whos car that is, he is a real cool guy!.. Yup that motor was definetly SHOT after that.

That engine needed to be rebuilt after that tune. :rolleyes:

In all honesty I wouldn't push a DR65 past 380 whp (Dynajet) as it only has a .63 AR exhaust which is just too restrictive for the 2.5 ltr engines.

Just my 2c.
Phil
www.elementtuning.com
Do you think this is true for all 2.5's??
I've got the crawford S3L (http://www.crawfordperformance.com/products/db_part_info.cgi?id=144)
What kind of problems are you expecting??

rm... alot of power?

Do you think this is true for all 2.5's??
I've got the crawford S3L (http://www.crawfordperformance.com/products/db_part_info.cgi?id=144)
What kind of problems are you expecting??

A built engine can withstand running a tune on the edge where the OEM pistons cannot. Piston design and other aspects on some built engines can also change certain burn characteristics that can lead to higher power with proper tuning. In these cases there’s no clear cut answer.

I was specifically referring to the 398 whp Mustang dyno plot (425 on Dynajet) and not yours. Sorry for the confusion. Also keep in mind I’m a pretty conservative tuner and I don’t even allow microphone level detonation on customers cars. I would rather leave 20 hp on the table which honestly is most likely to return in the real word where there’s proper airflow to the radiator and intercooler.

Thanks,
Phil
www.elementtuning.com

I have never seen posts about what people think about the perrin ebcs..... can I please get some discussion about everyones experience with it? likes, dislikes? worthwhile mod for big turbos? manual better?

??? crickets? come on now, obviously a few of you have experience with this EBCS with big turbo setups.

I want to know... is there a problem with this part? Is it such a PITA compared to a manual boost controller?

??? crickets? come on now, obviously a few of you have experience with this EBCS with big turbo setups.

I want to know... is there a problem with this part? Is it such a PITA compared to a manual boost controller?


Get an AVCR and be done with it... It cost a lot more, but there are no hassles.

Well after running for a couple of days at around 1.5 BAR or 21psi
car felt great and was pretty stable, until last night when I made
a couple more pulls and the boost got all the way up to 1.75 BAR
or 25psi which it obviously shouldn't be. So it's quite clear at this
time that we are having boost control issues. Going to Xotic on
sunday and we are going to try a manual boost controller, and a
couple other things to see if we can get it stable. We turned down
the boost today to around 1.3 to 1.4 BAR around 19psi so I don't
have any more issue and it seems to be able to control that just fine
(never spikes).

Will update again on sunday, thanks

+1 for the AVCR. If you have this much invested in the setup, another $400 for a an excellent boost controller is certainly worth it.

Nice numbers, can't wait to see how it ends up. A 4-500rpm spoolup increase will make things really nice IMHO. Bet she's a blast to drive!

Get an AVCR and be done with it... It cost a lot more, but there are no hassles.

Damnit. I've already spent over 2+ grand on engine managment and gauges. I dont want to spend another 400 bux on an AVCR just to control boost. :mad:

I'm not going to either. If the utec+perrin EBCS cant controll my sz55, then im just going to get a manual boost controller.

There is nothing special about a AVCR.. it's god damn software to control a god damn upgraded solenoid. I have the solenoid... it's just the utec software that is lacking.

Damnit. I've already spent over 2+ grand on engine managment and gauges. I dont want to spend another 400 bux on an AVCR just to control boost. :mad:

I'm not going to either. If the utec+perrin EBCS cant controll my sz55, then im just going to get a manual boost controller.

There is nothing special about a AVCR.. it's god damn software to control a god damn upgraded solenoid. I have the solenoid... it's just the utec software that is lacking.

Hopefully she won't go boom cause you cheaped out on controlling boost.

Hopefully she won't go boom cause you cheaped out on controlling boost.

cheaped out as in, he needs to spend time getting the upgraded solenoid to control boost correctly and may accidently blow something? Yes. But the way you are phrasing it looks like you believe it is a product of inferior efficacy even if used correctly.

Damnit. I've already spent over 2+ grand on engine managment and gauges. I dont want to spend another 400 bux on an AVCR just to control boost. :mad:

I'm not going to either. If the utec+perrin EBCS cant controll my sz55, then im just going to get a manual boost controller.

There is nothing special about a AVCR.. it's god damn software to control a god damn upgraded solenoid. I have the solenoid... it's just the utec software that is lacking.

all of these solenoids (including the factory unit) work the same way (basically), which translates easily to you just need to make the duty cycle maps proper (and consider that you are venting a good deal more pressure, which decreases the amount of pressure that would open the wastegate solenoid)... long story short... use less duty cycle... if that is already too low, change the restrictor out for a larger one (which actually allows more pressure to actuate the wastegate actuator :D )... and necessitates larger solenoid opening times to allow the same shaft speeds...

A GOOD mbc is not cheaping out... just cuz it's not an expensive EBC with more features.

http://www.longwoodpc.com/images/run.jpg
Red run is the original from the first post
Blue is the result from today :)

Nice job Andy! Looks good. :banana:

so Andy what did you change other than the tune if anything?

As it was explained to me, we ended up changing out one of the restrictors on the wastegate. That and the mbc ended up making all the difference. :cool:
here's another run
http://www.longwoodpc.com/images/run2.jpg

A GOOD mbc is not cheaping out... just cuz it's not an expensive EBC with more features.


Agreed. I like perrin products, but their ebc does not seem to produce consistent results.

That looks much better.

How can you compare a dyno plot that starts at 2200 rpm vs. a dyno plot that starts at 3200 rpm, of course it's going to spool better?

Louis.

First off let me state that there is no problem with the Perrin boost control solenoid.

I increased the spool of the turbo by installing the restrictor when we swapped to the manual boost controler for testing purposes.

I was able to get the turbo to spool the same with the solenoid, or with the manual boost controler. The Perrin boost controler is VERY sensitive to adjustments, and as Phil stated, it just takes a while to get tuned properly. Norris opted to go with a manual boost controler in the end.

Andy

First off let me state that there is no problem with the Perrin boost control solenoid.

I increased the spool of the turbo by installing the restrictor when we swapped to the manual boost controler for testing purposes.

I was able to get the turbo to spool the same with the solenoid, or with the manual boost controler. The Perrin boost controler is VERY sensitive to adjustments, and as Phil stated, it just takes a while to get tuned properly. Norris opted to go with a manual boost controler in the end.

Andy
Like Andy said, there wasn't anything wrong with the EBCS. I ended up going with the mbc because of the cost and ease of tuning. The ebcs could have been tuned but that would have been at least 2-3 more hours of dyno time at 100$/hr, the manual boost controller only cost 100$ and no more tuning is needed. And seeing as I've already spent tons of money on the car and it runs and boost great with the mbc, I'm happy so theres no need to spend more money.

How can you compare a dyno plot that starts at 2200 rpm vs. a dyno plot that starts at 3200 rpm, of course it's going to spool better?

Louis.
Here's one with the before and after only starting 200rpm apart
Blue is before the wastegate adjustment and mbc
Red is after the wastegate adjustment and mbc
http://www.longwoodpc.com/images/new.jpg
As you can see Andy was able to get
75more hp at 4500rpm :banana:
50more hp at 5000rpm :banana:


btw the blue run was the first run
when we put the car back on the dyno
on the second day of tuning and the
red run was the end result of the day

Nice to see that last plot...must make a big difference you can feel.

Andy tuned my SZ49. He is a perfectionist and one of the best, concerned tuners on these boards.

what an improvement, things started off a little sketchy...but most big turbo cars do. Congrats on the final results, somewhat similar to my 35R at 19psi.

what an improvement, things started off a little sketchy...but most big turbo cars do. Congrats on the final results, somewhat similar to my 35R at 19psi.
Wow, back from the dead. Thanks, and yes it feels alot better. From looking at other dyno graphs on nasioc and other vendor sites, looks like the DR65 and GT35R kits are about the same thing, and produce the same numbers.