Dyno with bolt ons

[mkoldus1]

So thought this might be interesting to everyone I had my 99 gst dynoed yesterday with a few mods( cold air intake witt kn cone filter, manual boost controller set at 14 psi, boost control solenoid restrictor removed and fuel pump rewire done, also ac belt removed) it ended up putting 276hp to the crank and 265 pound feet of torque.

I was happy with the results as I know what I need done to achieve 300 on both.

Also kind of interesting the curve started to drop down around 5600 RPMs on both hp and torque

 

[1990TSIAWDTALON]

Little turbo runs out of steam. Not bad numbers, she probably is very responsive and fun to drive.

 

[NOSLO2PT0]

Numbers at the crank? How did you achieve that on a chassis dyno? Or you mean numbers at the wheels?

Also, what mods do you have that actually increase hp? Cuz none of the ones you listed do, yet you claim major hp gains over stock.

 

[import solutions]

if stills t25 its good you are moving all the flow it blows so numbers are dead on

 

[Kryndon]

I second NOSLO2PTO, a +62 crank HP gain just from +1 psi over stock boost and pump rewire sounds almost impossible. Are you sure they set the dyno properly to account for the FWD drivetrain losses? Even if it was one of those dynos that always reads higher than the rest, 60 hp is still way too much of a gain.

Factory figures are 214 crank for a GST with a M/T. When I ran my stock T25 AWD on a DynoJet, it was running ~7 psi because I had major boost leaks and it got 150 at the wheels.

 

[mkoldus1]

Stock boost is 10psi also with a better flowing cold air intake along with an extra 4psi would achieve this gains also figure about 3hp having the ac delete.

 

[mkoldus1]

Those were also crank figures adjusted at 15 percent

 

[mkoldus1]

I believe it was 231.2 at the wheels

 

[98turbo]

231whp is insane power for the mods you listed. You should be seeing around 170-180whp with your mods.

 

[Mello]

cold air intake witt kn cone filter

Most of the intakes for 4G63's with K&N cone filters suck underhood air & are "hot" air intakes. Post a engine bay picture showing what your "cold" air intake looks like.

 

[JeffGS-T97]

I mostly rely on the butt dyno . If it feels faster then mission accomplished and have fun. Dyno numbers can be all over the place so i would stick with an optimal tune for your set up without any unnecessary stress on the drivetrain so you can continue to build and tune without destroying anything in the process.