Phil1320
20+ Year Contributor
- 2,256
- 39
- Dec 9, 2002
-
Rocky Hill,
Connecticut
Guys-I figured it more appropriate to post this info here since it is really not about any tuning techniques and such. Just to update, last year, I put down 284.7hp and 271tq best at about 21 psi.......14b turbo.
Since then I have fixed some exhaust leaks, the set-up has not changed otherwise.
The baseline pull was 273.4hp and 257tq at 17psi. Before I go further, this is running VP C16 and is on a Dynopack AWD dyno set-up. These read LOWER than dynojets, and are said to be more accurate, especially when it somes to torque numbers. I have a 2G MAF, 550cc injectors and an AFC2 for tuning, that's it.
In the interest of time I'll pretty much cut to the chase.......I made about 10-15 pulls, some tuning at held RPM rather than just making pulls and tuning.
The numbers rose from the baseline pull fairly quickly...at 19psi the car put down 288-293 hp.
I finally settled at about 22.5 psi, I am stilll on a modified stock sidemount with 2.25" in/out. Anything above that PSI and horsepower came down about 3-5.
Last note and I'll give the final number. A/F is not optimum at this point, there is some more smoothing out to do for sure...is it worth any more HP? Who knows
Last, boost would would stay above 22psi until 5100rpm where it would drop to 20psi at about 5750rpm and then continue to drop to 18psi on the nose at 6700rpm and then a gradual climb to almost 19psi by 7400 where I cut it off.
So, at a max boost of 22.68 psi at 4750 rpm the final best number was 300.7 HP at 5600rpm with 308.3 lb-ft. at 3800rpm
From 3800 to 4800 torque is pretty flat, the baseline pull had a huge dip in the curve. The torque comes under 280 lb-ft. at 5550rpm and proceeds to taper from there. The HP curve is almost flat between 5000-6000rpm and is above 280hp until 6500rpm and comes under 260hp at 6800rpm.
So, I guess fixing those leaks helped a bunch, and some new tuning didn't hurt..hehe. I guess the 14b's like to settle around 18psi after sustained high boost, it seems everyone has this problem, it must be the nature of the beast. I did three very quick passes back to back to see how bad the SMIC soaks----it soaks, lost 10 hp on the second pull and about 20 on the third. Can you say FMIC in the near future?
So...........284.7 HP last year to 300.7 this year-gain= 16 HP
271.0 TQ last year to 308.3 this year-gain= 37.3 lb-ft.
And there is definitely more left...it's a matter of dyno time. I can not say how happy I am with these numbers, I'm truly psyched. Now, I just have to do something with them
this coming Friday. The power is there!
Wutcha think guys???
Phil1320
Since then I have fixed some exhaust leaks, the set-up has not changed otherwise.
The baseline pull was 273.4hp and 257tq at 17psi. Before I go further, this is running VP C16 and is on a Dynopack AWD dyno set-up. These read LOWER than dynojets, and are said to be more accurate, especially when it somes to torque numbers. I have a 2G MAF, 550cc injectors and an AFC2 for tuning, that's it.
In the interest of time I'll pretty much cut to the chase.......I made about 10-15 pulls, some tuning at held RPM rather than just making pulls and tuning.
The numbers rose from the baseline pull fairly quickly...at 19psi the car put down 288-293 hp.
I finally settled at about 22.5 psi, I am stilll on a modified stock sidemount with 2.25" in/out. Anything above that PSI and horsepower came down about 3-5.
Last note and I'll give the final number. A/F is not optimum at this point, there is some more smoothing out to do for sure...is it worth any more HP? Who knows
Last, boost would would stay above 22psi until 5100rpm where it would drop to 20psi at about 5750rpm and then continue to drop to 18psi on the nose at 6700rpm and then a gradual climb to almost 19psi by 7400 where I cut it off.So, at a max boost of 22.68 psi at 4750 rpm the final best number was 300.7 HP at 5600rpm with 308.3 lb-ft. at 3800rpm
From 3800 to 4800 torque is pretty flat, the baseline pull had a huge dip in the curve. The torque comes under 280 lb-ft. at 5550rpm and proceeds to taper from there. The HP curve is almost flat between 5000-6000rpm and is above 280hp until 6500rpm and comes under 260hp at 6800rpm.So, I guess fixing those leaks helped a bunch, and some new tuning didn't hurt..hehe. I guess the 14b's like to settle around 18psi after sustained high boost, it seems everyone has this problem, it must be the nature of the beast. I did three very quick passes back to back to see how bad the SMIC soaks----it soaks, lost 10 hp on the second pull and about 20 on the third. Can you say FMIC in the near future?
So...........284.7 HP last year to 300.7 this year-gain= 16 HP
271.0 TQ last year to 308.3 this year-gain= 37.3 lb-ft.
And there is definitely more left...it's a matter of dyno time. I can not say how happy I am with these numbers, I'm truly psyched. Now, I just have to do something with them
this coming Friday. The power is there!Wutcha think guys???
Phil1320
...never a dissapointment with the 14b....
