I appreciate you chiming in on this thread. I'm running the Injen intercooler piping which is a full 2.5 kit. Im running your lower pipe at the I/C inlet with a Greddy 2.5in pipe. The end tanks on my TXS FMIC are 2.5in as well so idk if thats a point of restriction here.

My exhaust is a full 3" setup, no resonators. I considered the chambered muffler on the Perrin setup as a potential point of restriction.

 

Good numbers fury. You should figure it out. Trust me I have had the same turbo on for 2 months barely tuned. Can't wait to see my own numbers. Ill get a hold of you tomorrow.

 

No need to thank me man. Thats what i'm here for. I'd like to see this thing make the power I know its capable of.

I dont really know anything about the Injen plumbing. We havent had a car on the dyno here that had it installed that I remember so I cant comment on it. I have seen the upper pipe and intake on a few cars and i'm not sure how well the air flows since it is about the same route as stock. I am not knocking the product in anyway I just dont know what kind of power has been made using it.

The 2.5" inlet and outlet on the FMIC shouldnt be an issue. That is what ours are.

Do you know the most power that was made on the TXS FMIC? Just curious.

The muffler could be a good place to start but before I did anything with switching new catbacks, muffler etc... I would recommend unbolting the exhaust at the downpipe or ORP to see if anymore power is gained from doing that. If there is power picked up that would let you know there is some restriction in the catback.

 

I'll trying unbolting the exhaust at the axle back just to see. All good suggestions, plus fresh plugs, cooler air, and a boost leak test for good measure might reveal something. I'm definitely looking to move quickly to resolve this.

As for the intercooler piping it is a possiblity. The heat/humdity in the dyno room may have exposed the TXS FMIC but without an AIT sensor setup at the outlet i cant say for sure. It was another point I was considering re-upgrading.

 

Just keep me posted on what you find out with your car. I know the power is there.

 

very nice communication back and forth between the buyer and seller !!!! .. and review and the response is definitely something worth waiting to read about !!

 

Fury, you may want to do a compression/leak down test as well just to make sure all as well. You may have a head gasket leak or a weak cylinder.

 

I think it comes down to part combinations....there has to be some restrictions there somewhere

 

Need to post that graph or run file.

 

Im working on all of those things. Plan on doing a compression test/boost leak test tonight. As for the graph im as anxious to take a better look at it as all of you.

FWIW I take exceptionally good care of this car so if the engine is tired at 43k I'd be very surprised

 

+1, bad compression & hot weather could account for these slightly lower numbers.

 

I think it's all in the dyno. Everyone is different

 

You're right, every dyno is different (to some extent).

Pruven's Dynojet, however, is consistent and a large portion of the dyno #s on here are from their dyno since Al does most of his tuning there.

Their Dynojet is a little bit of a "happy" dyno, so if we're chalking this up to varations between dynos, the orignal poster's numbers would be somewhat higher than other dynos, not lower.

I think we can conclude that the original poster's dyno #s are accurate, so there really does seem to be a mechanical issue preventing Al from being able to get the HP this turbo is capable of.

One thing is clear, though. This turbo does perform very well when combined with Buschur's exhaust and intercooler. Jarrod's results speak for themselves.

I have this setup in my garage right now (3065 w/Buschur exhaust and I/C), and will be having Al tune it once GSC gets thier cams done.

 

Its funny how things workout on the internet

Number on a page is just a number - its how the car drives and how fast it goes that counts

Comparing dyno sheets obtained under radically different testing condistions is hardly useful

My observations

1 - If you want a turbo kit to make big power dont come in to dyno it on a day of record 103 degree heat and high humidity. Back in the dyno bay it was over 110 degrees. Lets face reality those are not record setting conditions

2 - This motor is 100% stock and the tuning and timing are very safe and conseravtive to keep Mike's engine together no matter what - there is another 20 - 30 whp left on the table in tuning

Mike is a customer I havwe been tuning for a while - I like him and no way am I pushing his tune to the edge with those stock pistons that have a habbit of just slpitting in half sometimes when you apprach 500 whp.

Also - the pulls were cut off at 7500 when it was still climbing in power and prob would have peaked closer to 8,000 - again due to stock bottom end and valve train

3 - When we drove the car on the road it kicked *** - the turbo shifted and came back on boost immediately - BAMM

The car had driveability 100% as stock - you can not tell that this car is not a stock turbo until you start boosting it - the partial throttle - start up - all the driveability is just as stock

The best feature is that the kit is specd in a way so the turbo has ZERO lag between shifts - unlike the gt35 r it just snaps right onto the boost immediately - its very pleasant to drive on the road

For me it was a pleasant, enjoyable 430 whp pump gas street set up

I like the turbo kit - its the best one on the market and sold at a very reasonable price

I gave it two thuimbs up

 

I had a ride in the car tonight, 4 of us in the car and it pulls like a freight train, I think the heat in the dyno room, and some other glitches were the source of the lower than expected numbers. After riding in the car first thing I said afterwards was that the car felt right, pulled alot harder than I expected, and hit hard.. I definitely wasn't expecting that because I'm still working on tuning my car and still am running fairly low boost to get the maps dialed in.. He has really no reason to worry, the car seems to sound fine, it runs great, I think possibly there is some sort of leak or restriction, but it sure didn't feel like it.