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Old 07-27-2004, 02:11 PM   #26
STiLL WILL
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Wow, all on 93 pump huh. VERY impressive! Now how about some pics of the installed GT30?




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Old 07-27-2004, 04:02 PM   #27
RiftsWRX
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The numbers are very impressive, but I'm concerned with how HP is falling off like mad at the top. Looks very unhealthy! Must feel like it's dying if you catch a gear in the upper 5k's.

Regardless, grats Dan! Good to see things working out with the kit!

Jorge (RiftsWRX)
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Old 07-27-2004, 04:05 PM   #28
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Quote:
Originally Posted by RiftsWRX
The numbers are very impressive, but I'm concerned with how HP is falling off like mad at the top. Looks very unhealthy! Must feel like it's dying if you catch a gear in the upper 5k's.

Regardless, grats Dan! Good to see things working out with the kit!

Jorge (RiftsWRX)
www.ProjectWRX.com
*cough* small ports *cough*


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Old 07-27-2004, 04:12 PM   #29
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Definately it needs some porting, and/or cams.

Dan: I know we have talked... Congrats.

I know you have your "biggest" monster still under the sleeve! hehe
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Old 07-27-2004, 04:56 PM   #30
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Could be valve float. Thats what i ran into but not until 2 bar of boost.

C
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Old 07-27-2004, 11:26 PM   #31
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mmmmmmmm on pump gas is a little bit hard to believe and only at 23psi, lets see some time slips and see if the numbers at the dyno are visible at the track
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Old 07-28-2004, 02:25 AM   #32
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Quote:
Originally Posted by AntonioS
mmmmmmmm on pump gas is a little bit hard to believe and only at 23psi, lets see some time slips and see if the numbers at the dyno are visible at the track
My sentiments exactly and the lag is hard to take. Dan's been saying all along that these gt30's were going to be super responsive. At 4000 rpm it's making less than 200whp and the power dies off precipitously past 6000 rpm. At the same rpm and on a dyno dynamics dyno, (very low readingdyno) an sr50 on only 91 oct pump makes 260 whp. At 3500 rpm, the gt30 makes 115whp and the sr50 makes 180whp. It's only at peak hp that the gt30 shines, but the area under the curve leaves a lot to be desired in this state of tune. Not a very big window of power. If your caught out in the wrong gear or lower than 4500 rpm and floor it, the race will be over quickly. Imho, this combo needs more develpement, atleast forthe street. No offence meant, just some observations.
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Old 07-28-2004, 02:54 AM   #33
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examine the dyno plot alittle more, maybe youll see jesus!
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Old 07-28-2004, 03:03 AM   #34
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- WARNING- Noob Question: I know I that you are talking about a STi here but I have a WRX and was wondering about how the rest of the car holds up with that kind of power. I am mostly referring to the axles and tranny, but also anything else that should break with that much power. Is it pretty much just a given that those things would have to be beefed up to hold that kind of power?
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Old 07-28-2004, 03:03 AM   #35
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Quote:
Originally Posted by mlambert
examine the dyno plot alittle more, maybe youll see jesus!
You're a funny guy. Anything constructive to add?
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Old 07-28-2004, 03:24 AM   #36
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Quote:
Originally Posted by odin1
You're a funny guy. Anything constructive to add?

Sure, how about... you're stupid and Dan did a fine job making power.
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Old 07-28-2004, 03:27 AM   #37
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IBTCATFIGHT!

Dammit, too late.
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Old 07-28-2004, 04:36 AM   #38
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Quote:
Originally Posted by mlambert
Sure, how about... you're stupid and Dan did a fine job making power.
Grow up. You're on ignore.
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Old 07-28-2004, 04:49 AM   #39
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Quote:
Originally Posted by odin1
At the same rpm and on a dyno dynamics dyno, (very low readingdyno) an sr50 on only 91 oct pump makes 260 whp. At 3500 rpm, the gt30 makes 115whp and the sr50 makes 180whp. It's only at peak hp that the gt30 shines.
were you refering to my dyno numbers...??..
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Old 07-28-2004, 09:05 AM   #40
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Quote:
Originally Posted by AntonioS
mmmmmmmm on pump gas is a little bit hard to believe and only at 23psi, lets see some time slips and see if the numbers at the dyno are visible at the track
Noone will be able to convince you that it is pump gas and 23psi. It is my car, I filled the tank w/ 93 octane, and nothing was added. No games here.

It will see the track all in due time. I have to relearn how to drive this car. The power comes on so hard it is difficult to control the car with all 4 wheels spinning. Also, shift points are going to be critical and need some experimentation.
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Old 07-28-2004, 09:09 AM   #41
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Any thoughts on adding alcohol injection to give even more safety against knock and increasing the timing?

offset
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Old 07-28-2004, 09:12 AM   #42
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Quote:
Originally Posted by G-4ce_Banger
- WARNING- Noob Question: I know I that you are talking about a STi here but I have a WRX and was wondering about how the rest of the car holds up with that kind of power. I am mostly referring to the axles and tranny, but also anything else that should break with that much power. Is it pretty much just a given that those things would have to be beefed up to hold that kind of power?
We ran a GT30R on a WRX and also publushed the results. If you want to see, do a search here or on Cluv WRX. I'm sure the sheets and data are all still posted. We made 352 WHP on pump fuel and over 400 easily on race fuel although due to the completely bone stock engine and trans we stopped at that point. Car was blinding fast and the engine lasted a good 6 months before he broke it runnign race fuel all the time and embarrasing supercharged Mustangs. We are rebuilding it into project Phoenix right now and aiming for a new record. On a WRX you will need to convert to 6 speed or use Kaaz gears. Engine work is recommended eventualy although if you take it wasy with the boost you can run it stock motor for quite some time. I'm eager to test out water injection but I haven't yet. I have no doubt the numbers would improve even more with a little water injection thrown into the mix.
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Old 07-28-2004, 10:29 AM   #43
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Quote:
Dan's been saying all along that these gt30's were going to be super responsive.
I always took what Dan said as a super responsive for a turbo of its size. Of Of course its not going to be as responsive an sr50 just like the sr50 is no where near as responsive as a gt28.

Last edited by totoherbs; 07-28-2004 at 11:49 AM.
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Old 07-28-2004, 11:41 AM   #44
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Quote:
Originally Posted by EsxSTiSooby
were you refering to my dyno numbers...??..
Yes I was. :-). Now that's a very responsive turbo for a large turbo that still makes good hp up top.
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Old 07-28-2004, 11:48 AM   #45
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Quote:
Originally Posted by totoherbs
I always took what Dan said as a super responsive for a turbo of its size. Of corese its not going to be as responsive an sr50 just like the sr50 is no where near as responsive as a gt28.
An sr50 has a compresor flow which is similar to a gt30. A gt28 is much smaller than either. I was trying to compare apples to apples. Also, since noone has a gt28 on an sti, we don't know how the responsive it will be.
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Old 07-28-2004, 12:29 PM   #46
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Quote:
Originally Posted by silverstipa
Noone will be able to convince you that it is pump gas and 23psi. It is my car, I filled the tank w/ 93 octane, and nothing was added. No games here.
I drove the whole way from central PA with him in the car. There was nothing in that tank but Sunoco 93 octane.
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Old 07-28-2004, 12:48 PM   #47
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Dan,

Sending a email.

Last edited by gpatmac; 07-28-2004 at 12:53 PM.
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Old 07-28-2004, 02:20 PM   #48
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Stock clutch?!
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Old 07-28-2004, 02:25 PM   #49
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Quote:
Originally Posted by odin1
An sr50 has a compresor flow which is similar to a gt30. A gt28 is much smaller than either. I was trying to compare apples to apples. Also, since noone has a gt28 on an sti, we don't know how the responsive it will be.
How many Lb/min compressor does the Sr50 use?
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Old 07-28-2004, 02:37 PM   #50
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~50lb/min i believe.

Quote:
Originally Posted by cronic
How many Lb/min compressor does the Sr50 use?
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