Dissapointing dyno numbers...

94califiveoh · Jan 11, 2011

Came out of the dyno and got 294hp/320tq...very very dissapointed. See my sig for mod info. These numbers were achieved with a vac leak. My lower intake is not seated properly and is leaking air from the lower intake into the crank case. I must not have created a full seal between the lower intake and the heads. Do you guys think if this is fixed, my HP and TQ will go up?

castine917 · Jan 11, 2011

your sig does not have mod info. vac leak will affect air/fuel ratio which affects power.

94califiveoh · Jan 11, 2011

Sorry, here are my mods:

94 GT Vert: Rebuilt 306 w/domed pistons, compression 10.4 with TFS 170cc heads, 1.6 RR's, stage 1 cam, Tmoss ported lower, 1" spacer, cobra upper, 70mm TB, 76mm calibrated MAF w/24lb injectors, CAI, MAC longtubes/BBK xpipe, 3.73's

SN-95.0Beast · Jan 11, 2011

That's really not all that bad dude

94califiveoh · Jan 11, 2011

well, from looking at your numbers, im pissed. Are your numbers flywheel hp?

Win · Jan 11, 2011

at the Rear wheels that is right where it should be!

Rice_slayer · Jan 11, 2011

Ya, that seems normal for a HCI 302. Were numbers from a DynoJet or Mustang Dyno? Mustang dynos tend to read like 10-15% lower than dynojets, thus why my car put down only 270rwhp where as CanaryGT with basically the same set up put up 300rwhp on a dynojet.

castine917 · Jan 11, 2011

i only put 271 hp and 302 tq with my camaro 355 through a glide. granted i had a clogged fuel filter but 49 more cubes and carb. stock our stangs don't even hit 200.

94califiveoh · Jan 11, 2011

well then, I guess it is what it is. I'll tell you something though, it was a night and day difference when I took it for a test drive. holly guacamole! major improvement.

I should have it back by tues-wed next week. Hopefuly thats the only issue with the motor. thanks guys

LAFENATU · Jan 11, 2011

94califiveoh said:
Came out of the dyno and got 294hp/320tq...very very dissapointed. See my sig for mod info. These numbers were achieved with a vac leak. My lower intake is not seated properly and is leaking air from the lower intake into the crank case. I must not have created a full seal between the lower intake and the heads. Do you guys think if this is fixed, my HP and TQ will go up?

Those numbers are average.

You don't live on a dyno..numbers mean nothing.

Win · Jan 11, 2011

LAFENATU said:
94califiveoh said:

Came out of the dyno and got 294hp/320tq...very very dissapointed. See my sig for mod info. These numbers were achieved with a vac leak. My lower intake is not seated properly and is leaking air from the lower intake into the crank case. I must not have created a full seal between the lower intake and the heads. Do you guys think if this is fixed, my HP and TQ will go up?

Click to expand...

Those numbers are average.

You don't live on a dyno..numbers mean nothing.

With the Fast as cast heads that should be about right.

Agreed 1/4 mile time is where it's at.

330CubeGt · Jan 11, 2011

I would be upset to but i would fix your issue and go back and see what it does then make a trip to the track and see what it does...

ttocs · Jan 12, 2011

that is close to what I am putting together, and close to what I would expect to make.

BlkoutGT · Jan 12, 2011

Ya man, before you get down on yourself, fix your leak then get back to the dyno. Good luck.

SN-95.0Beast · Jan 13, 2011

94califiveoh said:
well, from looking at your numbers, im pissed. Are your numbers flywheel hp?

those were Numbers Projected through Quarterhorse, on the dyno i Put down 319RWHP and 354TQ, so not that far off from your numbers

daves94vert · Jan 13, 2011

Run it and post your times. Is it through a 5-speed or auto?

Pure84GTT · Jan 13, 2011

dont race the dyno, a custom camshaft and a different intake would net you some more ponies

KAOSS · Jan 13, 2011

Those numbers are good. Don't be pissed. My 347 stroker made 330 at the wheels NA and was running 7.50 in the 1/8 on a 100 shot. It all comes down to who is faster. Guage your power on the track. There's too many Dyno Queens!!!

forcefedhatch · Jan 13, 2011

yeah not too bad.. id be pretty happy..especially n/a

SVTurbo 98 · Jan 13, 2011

Pure84GTT said:
dont race the dyno, a custom camshaft and a different intake would net you some more ponies

I agree with this.

What did you expect to make? Your dyno numbers are pretty much on par with what people are making with that combo... Just for comparison sake, I once made 290/295 with a 306 afr165, ots crane cam, tmoss ported gt40 combo on a dynojet.

It's sounds like you're having fun with it though and that's all that really matters.