See what I mean?

 

With a tune only the car wont be at 315whp and if it is then youre boosting a bit too high and will need intercooler piping soon when yours goes pop lol

 

The turbo will just fall off power up top, it wont boost 30psi at redline lol. Like I said before, it could make a ton of torque with a ton of boost, but not the HP.

 

okay jax,sorry. yeah tune only maybe 285-290ish on the high side. probably 275ish on the lower end and that's assuming they have an upgraded clutch.

 

just curious to why 315hp? is that a high side guess or low side guess? just asking,don't mean to sound like an ass,just really want to know. maybe you know something i don't.

bone stock was 247

hahn tune was 263.

now,the car was never on a dyno till recently. before this last pull,this is what was added to the car.

3inch DP/EXHAUST NO CATS* good for 20hp *no cats is still better than a catted DP,period. which will give a little more hp.
bigger front mount and ic piping and yes it was a noticable difference 10-15hp.
upgraded to a st 3 clutch-not a hp gain,but helps with holding the power and not letting it "slip" away.

now the rule of thumb(roughly) every psi of boost is equal to 6-8hp.
multiply that x5 which is about 30-40more hp.(i'm boosting 25psi).

add it up

247-stock
20-exaust
15-IC
40-tune

322ish-going by on paper-the low side would be 307ish(minus 10 for the tune and 5 for the IC.)

want to do it again on the same dyno,with cooler temps. everytime the car was on a dyno,it was 98-100degrees with a heat index of 103.

 

A catless wont give you 20hp, maybe 15hp max. Also, the clutch should easily hold 320whp, its the 350+ wtq that it has a problem with. Its not so much that its the clutch, its the pressure plate that just can't handle the torque. There are cars with upgraded turbos on stock clutch putting close to 400whp/400wtq on the stock clutch, just because they get their power higher up in the RPMs opposed to making 350+wtq at 2500rpm lol.

 

Why on the earth would you want to dyno again on the same dyno? We've already established the dyno is wrong (this points not even up for discussion really). The only thing the same dyno would be good for now, would be comparing parts that you upgrade to the previous dyno session.

If you want an accurate dyno reading of what your car is putting down you will have to go else where for a dyno session. Ask some enthusiast in your area and find out the most accurate dyno. If you want infalted numbers I guess keep using the same dyno.

I prefer conservative dynos myself so I know the minimum whp, wtq I might be making.

Thats what kills me about having a dyno list on some automotive forums, you could go to highest reading dyno in the area, get infalted numbers to try and make your car look good.

 

I've taken mine to the same dyno every time, it's the same one that all the local sprint cars, modified teams and Vince from Trificta tunes uses. Right know I'm at 276whp and 287 fpt which works out to approx 315 hp to the flywheel, thats with all my current mods, that was run by Vince, the only reason I haven't added the trifecta tune is at the time he wasn't done tweeking it and I haven't had the time since, plus I believe we'll need to change the clutch to do it any justice.