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Thread: went to the dyno today

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Posts: 11-20 of 39
2010-10-17 11:58:12
#11
I think it made the correct power especially if the motor is 100% stock like mentioned. I actually think it did well considering the boost levels.

Drop some cams in that motor and you will see those 350 whp #'s at 15-16 psi. The compression on this motor is also the lower so it will take a bit more boost to make power.

Hell 295 whp at 15 psi on a stock motor aint to shabby. Also at 15 psi the 6262 isn't doing shit. Crank that thing up and let it sing!
2010-10-17 12:44:53
#12
Not even in the efficiency range yet at 1bar. Give it more boost. Should be around 11.5-11.8 for AFR. You'll see a world of difference.
2010-10-17 14:45:16
#13
Originally Posted by Cliff
Not even in the efficiency range yet at 1bar. Give it more boost. Should be around 11.5-11.8 for AFR. You'll see a world of difference.


^ agreed. You will see a 20-30whp jump by just cleaning up the a/f. You could make more if you could adjust the timing map. I have never made big numbers running a jwt ecu. I always ran a safc with the jwt ecu because I have yet to get one that the a/f was acceptable with out some adjustment.
2010-10-17 15:52:52
#14
They are low, what did you tune while on the Dyno what was your starting point on themcirst pull and what did you do that made improvements? A/f is on the rich side. More info. And what type of Dyno? Where did it peak what was you tq?
2010-10-17 16:37:31
#15
Originally Posted by mike4387
Yeah I am on stock cams right now, Ill call Jwt and ask them but Im thinking it should be set at 15. I had to replace the distributor a while back and I may have moved the timing a little I will have to check it and see. Its the only thing I can think of besides running a little rich.


If I recall correctly, on a GTi-R the timing should be set at 20 degrees unlike other SR20DETs which run 15 degrees. Maybe you should readjust your timing and also increase the boost. Like everyone else is saying, on a big turbo like the 6262, 15psi won't cut it.
2010-10-17 16:40:59
#16
Ya man I never liked JWT ecu's thats probably party of the problem and that turbo will really spin nice at 20psi even better at 25psi
2010-10-17 17:39:48
#17
This is the way i see it. The numbers seem about right.

1- your not even anywheres near effiency boost wise.
2- you want your timing and a/f dead on.
3- jwt is known to be conservitive and rich. The way they tune is if the see big inj they figure your runningalot of boost. Wich your not hence being rich.
4- stock cams only hold power for so long. S3rs are your best bet.
5- 8:5:1 compression is low, needs more boost to see big numbers.

Your on the right track, button up those loose ends and raise the boost 20psi should be at 400hp.

stratton.
2010-10-17 17:59:50
#18
I personally think its low not too low but low non the less, check the timing and look for boost leaks like everyone else said some cams would do your motor good. What dyno did you tune with? Also your a/f ratio could be better
I personally just got to tune my set up wich consists of a t3/t04e with supporting mods
P60 maf bc stage 2 cams at 10 psi and it made 338whp with solid a/f ratio.
2010-10-17 18:07:54
#19
Yea what other people say about the timing is true. I gained 60whp from around 4* timing iirc. It was ridiculous.

But if the timing is on, regardless of that afr, it is a pretty low dyno number. Some setups take massaging to get the best output. I made only 265whp on 15psi many years ago. Now a much different setup (same turbo) makes 317whp on 10psi. Just goes to show you.

The 6262 on 15psi is still pretty efficient. I would expect on a DET it would make about 400whp. The 6262 is 700whp capable, so you shouldn't be dropping off torque on the top end like you would with a smaller turbo. Yes, more boost will make more power, but under 300whp on 10psi from that turbo makes me a little concerned.

But one question has not been answered, what kind of dyno is this? Because I've seen close to 100whp difference depending on dyno type.
2010-10-17 18:22:23
#20
Originally Posted by Coheed
Yea what other people say about the timing is true. I gained 60whp from around 4* timing iirc. It was ridiculous.

But if the timing is on, regardless of that afr, it is a pretty low dyno number. Some setups take massaging to get the best output. I made only 265whp on 15psi many years ago. Now a much different setup (same turbo) makes 317whp on 10psi. Just goes to show you.

The 6262 on 15psi is still pretty efficient. I would expect on a DET it would make about 400whp. The 6262 is 700whp capable, so you shouldn't be dropping off torque on the top end like you would with a smaller turbo. Yes, more boost will make more power, but under 300whp on 10psi from that turbo makes me a little concerned.

But one question has not been answered, what kind of dyno is this? Because I've seen close to 100whp difference depending on dyno type.


exactly what I was thinking
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