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Old 06-25-2002, 12:20 AM   #1
alfriedesq
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Default Pruven Performance comes through for me again - 376 wheel HP !!

Yes thats right - 376 wheel HP today with a very conservative tune and over 85 degrees in the air

I recieved my new Garret turbo from Turbo Specialties on Saturday

www.turborepair.com

and the guys at Pruven Performance

www.pruvenperformance.com

spent most of the weekend making a custom upipe from stainless to hold the new T3/T4 and Tial 46 mm extrenal wastgate

They also fabricated with better than factory quality and precision some support brakets to hold that big turbo in place

Also made was a new 3" downpipe with trick V-clamp attachments

All these pipes fit much better than the other aftermarket ones I have had before - even better than the stock

The turbo and wastgate were so HUGE that I seriously stressed out about whether it would all fit in or not for the past few days - but all that fuss was for nothing becuse now they look like they were factory designed to fit in those locations

These guys at Pruven are MASTER craftsmen - - I am just amazed at how well the stuff looks and also at the fact that the car went right onto the road and right onto the dyno right after the job was finished today with out any clitch or problem - - everything was done once and done right the first time

As for the car - its amazing how hard it is hitting now - - its scary how fast it is - - and its still on the factory ecu with only a super-afc - - I am sure that there is much more room to sqeeze more HP out with higher boost and lean a/f ratio - - but in reality my HP goal was reached very easily with a very rich a/f ratio of close to 10./1 - so I did not want to take chances on a hot day and risk having a bad result - - better to enjoy the insane 376 hp with a very safe tune that go for the edge

There are some more - undisclosed - areas for minor improvement and adjustment - but all in all - my car is just insane fast now

Big thanks to Hunter and Reid at TurboSpecialties for hooking me up with such a great running T3/T4 right out of the box and with providing me with all the flanges; hardwear and fittings I needed - they sure are nice guys and put up with me calling them everyday for a month to bug them and find out when it was all comming

Special big thanks of course to Pruven Performance for putting it all toghether on the car with such complete skill and perfect execution - I just can't say enough good things about their work

I will post a dyno sheet later on - - you guys just will not believe the power band on this sucker - its amazing
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Last edited by alfriedesq; 06-25-2002 at 01:28 AM.
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Old 06-25-2002, 12:44 AM   #2
wRxbeater11
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hmm for some reason i think some records will be broken this summer, with out NOS

go for it AL.


-melo
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Old 06-25-2002, 12:58 AM   #3
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Got any pics of the t3/t4 flanges, piping and fittings???
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Old 06-25-2002, 01:09 AM   #4
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Thumbs up

Good job man. I'm very happy for you. You've gone through a lot and deserve some good numbers.

can't wait to see the dyno.
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Old 06-25-2002, 01:32 AM   #5
DannyGT
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around how much was this little kit you had put together ? and do you feel the car is maintaining daily drivability ?? Hows the boost comming on ? Give us more details...
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Old 06-25-2002, 02:02 AM   #6
alfriedesq
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Quote:
Originally posted by DannyGT
around how much was this little kit you had put together ? and do you feel the car is maintaining daily drivability ?? Hows the boost comming on ? Give us more details...
The kit is prob not that expensive in comparsion to the cost of a new PE1820 or Cobb SR40 turbo and upipe and downpipe which would prob set you back about $2,000 and change - - this turbo is in the $900.00 area - check with turbo specialties for exact details - - then you're looking at about 20 - 30 hours in shop time to make all the pipes and brakets needed to get it in place - OH and about $450.00 or so for the big ass TIAL - which by the way totally eliminates any issue of boost spike or creep of any kind - I can NOT believe how accurate and precise the SBCid is at controlling the boost now

The daily driving is just amziing and not effected at all b/c 80 % of my driving is done off boost -- - you can not tell the differnce between this set up and the pe 1820 until 4,000 rpm - its the same

From 4,000 to 5,000 the pe 1820 is ever so lightly ahead of the Garret - and from 5,000 the Garret is about 115 HP over the 1820 to about 50 HP higher at 6,000 - - this sucker holds boost of any amount all the way to the 8,000 rpm red line with ease -- - basically it feels like a turbo buick V6 - - wait a minute its basically a turbo Buick v6 turbo so no wonder it hits just that hard !!!

I think at 7500 rpm its like 80 HP higher than the 1820

Its over 200 HP more than the stock turbo

Its true that this is NO auto X or 0 - 30 MPH turbo - - basically its dead at those speeds - - -

But from any speed over 30 MPH boost is right there in a split second and the highway performance is just nuts

Every time it kicks in the power I cringe b/c I think its going to bust a motor mount or tranny gear - it comes on that damm hard - its totally scary the way it kicks in - sheer ferocity and brute force

The only issue i've had so far is that for the first time - i'm poping off the blitz fmic pipe joints from the pipes when it spools up hard - - I keep making them super tirght - the blitz dont have any barbs on there so maybe I will get Pruven to weld some on - - also i may try turning up the wastegate gain on the boost controller to lesson the shock
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Old 06-25-2002, 02:42 AM   #7
Happy
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Al,

Great figures. Keep an eye on your IDC's, because at that level, you'll be very close to maxing the injectors out.

You should also look at getting "8" rated plugs.

Happy.
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Old 06-25-2002, 02:49 AM   #8
alfriedesq
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Quote:
Originally posted by Happy
Al,

Great figures. Keep an eye on your IDC's, because at that level, you'll be very close to maxing the injectors out.

You should also look at getting "8" rated plugs.

Happy.
Happy - your right on the money - as usual - the injectors are in need of change or i'll just have to be "happy" at these power levels - which are really quite nice !! Now I think i am going to try and save some $$$ to get the Jun stroker kit and help that low end !
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Old 06-25-2002, 04:33 AM   #9
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I'm doing something very similar in a week, just wondering what trim and A/R T3/T4 you are running. This summer is getting very interesting...
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Old 06-25-2002, 04:55 AM   #10
Ethan
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Lets see the Dyno sheet already
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Old 06-25-2002, 05:06 AM   #11
hotrod
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Default sounds interesting

That sounds like a sweet set up Al.
Hope you fry some tires soon.

It sounds like you need to get some hose retention beads rolled into those intercooler tubes from what you say. They make a little tool to do it if the tubing is not too thick, and a local radiator shop might be able to do it with out making a special trip down to the folks at Pruven. Although given how you describe their work, I have no doubt they would do it up properly.

Go bust a good time, I want to see 3 - 4 WRX's in the 11's -- the competition makes it more interesting that way.

Larry
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Old 06-25-2002, 12:10 PM   #12
ives
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What was the boost level and what kind of fuel were you running when you made that dyno pull?

I think I am going to wet myself if that pull was on standard pump gas.

Tyler
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Old 06-25-2002, 12:45 PM   #13
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Good numbers. You should be able to pull much more then that in time. I just met a guy last week at a local dealer that just got back from a dyno session. He ended up with 376 whp on stock internals. He didn't have a STi setup. So I would think that with the sti setup you should be able to do better in time then what some stock internal wrx's are doing. He was running a link setup that is going to be in turbo magazine in the next month or so. I was hoping that last week the dealer was going to post the numbers but they haven't yet because I think they thought they could get a better run in. We'll see.
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Old 06-25-2002, 01:53 PM   #14
alfriedesq
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Quote:
Originally posted by ives
What was the boost level and what kind of fuel were you running when you made that dyno pull?

I think I am going to wet myself if that pull was on standard pump gas.

Tyler
It was on 94 octane unleaded fuel with about a half gallon of old c 16 mixed into the tank full that they happned to have lying about at pruven !!
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Old 06-25-2002, 02:47 PM   #15
WRBLUEWAGON
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Great numbers Al,

What kinda of boost are your running? and are you running sti 565cc injectors?

Eric
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Old 06-25-2002, 03:31 PM   #16
ives
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DAMN! That is pretty darn impressive. And to think that 400+ hp at the crank with street gas was impossible. Thanks Al, I am glad you proved my assumption wrong.

"Now I seem to be having trouble finding my credit cards."

Tyler

Last edited by ives; 06-25-2002 at 04:01 PM.
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Old 06-25-2002, 03:35 PM   #17
alfriedesq
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Quote:
Originally posted by WRBLUEWAGON
Great numbers Al,

What kinda of boost are your running? and are you running sti 565cc injectors?

Eric
yes that was on STI stock injectors with stock fuel pressure regulator and stock fuel lines - but big supra pump

After I get the intake tube sorted out I will try raising the fuel pressure and see if it can hit 400 hp at the wheels - - it was 91 degrees actually yesterday according to NWS so the 376 wasn't too bad
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Old 06-25-2002, 03:50 PM   #18
MadMax
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I was at pruven when Al was working on his car. And yes the turbo and wastegate is freaking huge. Hehe Al you have to take me for a ride, I'll make sure to leave my wallet at home so i wont be tempted to buy more stuff to make my rs faster

As far as pruven, they were very cool. They didn't have that attitude, I know more then you so shutup, like some high end shops display.

From the cars around the shop it defin looks like they know their stuff. I will prob get my clutch done there.

MadMax

ps AL watch out for them undercover cops in the area
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Old 06-25-2002, 05:41 PM   #19
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Where does the intake to the compressor route through if you have an FMIC? Under the intake manifold?
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Old 06-25-2002, 06:31 PM   #20
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I hope to see this badboy at the track very soon!
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Old 06-26-2002, 02:21 AM   #21
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Damnit,you just made me lose another pair of pants.
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Old 06-26-2002, 03:27 AM   #22
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How are the trannys and differentials holding up so far on these low 12 second WRX's? Im really curious because I know how easily they broke on the AWD Talons. Thanks for any replies...
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Old 06-26-2002, 10:59 AM   #23
TypeC
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Quote:
Originally posted by KJSUPRA
How are the trannys and differentials holding up so far on these low 12 second WRX's? Im really curious because I know how easily they broke on the AWD Talons. Thanks for any replies...
He is using a WRX STi tranny, so it should never break (realistically). The people running stock trannies seem to keep them together, however some people with little or no mods manage to break them, so go figure.




Al, still don't see any charts.
Will you be so kind as to post your other dyno (which you never posted) so we can compare the different turbo/wg setups?

-C

Last edited by TypeC; 06-26-2002 at 01:02 PM.
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Old 06-26-2002, 12:11 PM   #24
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Where are the pics of your setup and dyno graph?
Is the dyno numbers SAE corrected???
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Old 06-26-2002, 12:20 PM   #25
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have you considered ways to reduce the turbo lag so it doesnt kick in so hard at once, potentially damaging motor mounts, as you mentioned? i know, there is only so much you can do, but it might eliminate some of the scariness. if you go to an engine management system, you can probably tune it so that you get a little more power in the lower rpms without overdoing it when you rev it higher...if that's what you want.

i hope you don't hurt your expensive transmission with that crazy motor!!
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