Had my car tuned at TT two-three weeks back, put down 333whp/308wtq with the following mods. It was 86 degrees out with 10-11% humidity.

GSC 272/272
Helix 3" TBE with straight pipe
Helix Intake (hardpipe w/ cone filter)
Hallman MBC
Walbro 255lph fuel pump
ARP Headstuds
TurboTrix reflash

This is on an 05 Evo, so I also have the 10.5 hotside going for me. I added a Forge BOV after the dyno tune to replace the stocker.

I was expecting anywhere from 340-350 for both HP and torque and needless to say wasn't quite pleased with the results. I suppose my whp is only 7 horses away from the minimum I'd expected but the torque is a good 30+ away.

I did do a compression check before the tuning and it tested 190,185,190,190. I tried to do a boost leak test but the tester itself sprung a leak at 12psi...I didn't hear any other leaks in the piping at that pressure, FWIW.

Is it just the tune or is it my mods causing the numbers to be subpar?

i had almost the exact same results at turbotrix with pretty similar mods. check out Final Tune Results! , maybe this will have an answer for you.

hows your idle?

i'd say too hot in their dyno room+stock intercooler=lower torque. only thing i can think of

doesn't sound too abnormal to me, i have basically the same setup except i have 264s and i tuned with an afc, i put down 325/305

yea alittle low i made 345whp and 330wtrq. go to a high flow cat the stocker is pretty restrictive i changed it and went with a tubulatr mani and picked up another 17 whp and 22wtrq

he already has a delete pipe....what manifold do you have? ^

I saw a guy with 360 hp and 317 tq. He had a Busher o2 housing with a built in waitegate.
It sounded like that was leaking under full throttle. Check your blow off valve.....
My car made 364hp 359tq.at 21psi. we will be doing a 26psi pull and hope to see 390hp
on 100 oct. I allways run 100oct. TT trix tune

Stock turbo no Alky

I replaced my stocker with a Forge unit after the dyno so I'm not sure how big of a difference it made...nothing discernible, that's for sure.

I see many dynoflash sheets that show torque in the 335-350 range with my mods. TT sheets seem to have a lower spike but still have atleast 25-30 more wtq with these mods.

Regardless, my numbers are less than stellar...average at best, which is a bit disappointing IMO.

The car pulls nice up top but it's definitely dead on torque...compared to what my friend's car was like with the same mods. He put down 336whp and 334wtq at the Pruven Dyno.

I have a cat delete.

Idle is perfect/was perfect even before the tune.

A friend with AMS intercooler, works TB, AMS u/l piping only dynoed 8 more whp and 12 more wtq on the same day at TT...still a bit pathetic.

Aem Ems

Ive noticed that TT tunes usually have more HP than a dynoflash but the dynoflash always has the TQ pretty close to the HP #s, if not more TQ than HP. Either way your numbers do seem alittle low. Hows the car feel? Try doing a boost leak test again.

where are you located in philly? ^