At last I finally made it to GTM to have the Fcon V-pro installed and get my fuel pressure issue fixed. The results speak for themselves. There’s two maps, one for 91 octane, and one for 96 octane. However I’m still going to run 5 octane higher gas on each map just for added safety because I’m paranoid.

The 91 octane map came out with 455.2 whp and 370.6 tq (1st graph)
The 96 octane map came out with 477.8 whp and 383 tq (2nd graph) it'd probably be more like 470whp if it didn't have that spike at the very end

GTM uses a dynojet with STD correction, not SAE correction. So it would probably be read less with SAE numbers, but on that day with the 62 degree high (rained the day before), that's what the car made on that dyno

I might throw my car on dynocomp's dyno (dyno dynamics) since I've always used their dyno and am curious what their dyno shows

video:
http://www.youtube.com/watch?v=MXo-ZuqfCIQ


Sam at GTM and really everyone there are just awesome. I have nothing but tremendous things to say about them and their shop and level of detail they spend on your car and keeping in touch with you about how things are going. The shop is absolutely huge and easily the most impressive shop I’ve ever seen and likely ever will because of the sheer size of it and amount of equipment they have. Sam showed me all sorts of things they’ve been working on and I won’t steel his thunder, but he has some neat parts coming available soon.

There’s just so many things that seemed beyond what a normal shop would do. He measured A/F directly from the cats instead of the exhaust when on the dyno. After tuning my car, we went out and tuned it on the street for awhile, came back and he tweaked it some more. Then let it sit idle so it’d heat soak, and tweaked it some more, then street tuned it even more. The level of care he takes with the Fcon is impressive to me. I know a full standalone needs a lot more detail than a normal piggyback, but I was extremely happy about his personal mission to get everything as perfect as it possibly could.

As far as the Fcon itself – it’s obviously a major improvement. It’s very smooth. Before I sometimes felt the powerband would have little lumps as revs went up or slight lumps in power as the throttle position changed, but not anymore with the Fcon. It's very smooth and feels great. It’s by far not a cheap investment, but probably well worth it in the end. I had a knock amp installed, EGT compensation, air temp sensor, and Navigator monitor as well as all the other standard Fcon things included in the Fcon special they’re still currently running.

My fuel pressure issue has been fixed. The culprit was my pump assembly. One of the fittings was loose, one of the hoses they said was collapsed or something along those lines to block flow, it possibly wasn’t drilled with the right size, and the cloth sack thing (don’t know its proper name) was all messed up and broken/deflated – they said it was bent or whatever. Anyway I got a completely new pump assembly and they started from scratch also including a brand new walbro pump. The CJM stage 2 hard line was also installed.

That’s about it. The car is faster. I can feel just from driving it, that it gained some power. He did do a dyno run of my car as it was when I drove in to his shop and said on his dyno it did several 380whp runs initially and then it somehow was able to do a couple 400-420whp runs. I haven’t seen those graphs though yet as we both totally forgot about them and I don’t know how much torque they made earlier in the powerband.

Either way I can finally drive the car fully all the way to redline and it drives better and smoother than it’s ever driven before. Sam and everything about GT Motorsports was great – everything was finished a day late, but I know how these sorts of things go so I wasn’t too shocked by that and Sam made up for it anyway (I was staying in CA with my wife for a few days and we needed to get back). I mainly was concerned with the results and I got exactly what I was expecting from them which was a great tune, a fixed fuel system, going over everything with a fine tooth comb and making changes as needed, and a great overall experience


BTW from the street tuning session Sam and I did on the car, I had complete traction in 2nd gear and onward. I haven't tried redlining 1st gear yet though, but it's probably too short to maintain WOT traction.

I'm on the stock bottom end. Check my signature for the details of my other mods

The graphs do basically what I've been saying all along what I thought my car would do on a normal dynojet with proper fuel pressure so to all the people who doubted me saying so

 

very nice number,s.

 

Congrats, very impressive numbers. Certainly the FCon is not cheap but I believe a worthy investment in the long run. Lots of fine tuning available with it.

 

nice numbers. what is the boost pressure for boths maps?

 

thanks

boost was reading 10.9-11 psi

it was around 75-80 degrees or so outside

the car was never cooled down to do a bragging rights run
the charts posted are when the engine was hot after a number of consecutive runs.

 

What kinda of dyno is that ? At just 11psi I would think some correction to DynoJet numbers was made . Was there ?

[the car was never cooled down to do a bragging rights run
the charts posted are when the engine was hot after a number of consecutive ]

Seems every time you post some numbers...there is an excuse and you think it could have made more . 11psi ...thats some big numbers for 11psi .

Hope you enjoy the ride and all the kudo's !

 

Oh..with the car hot , the belts shouldnt have been slipping much due to your belt re-routing . I thought you said it made 12psi after the belt fix ?

 

I see that you stopped at 6500rpm's . Why not go to redline ? SCer make power all the way to redline and you could have made more .

 

i wonder why you did stop at 6500?? nice numbers though sentry.

sam is a cool guy for sure!!

 

at dynocomp in AZ the boost pressure logged there was 12 psi at redline

in CA on GT Motorsports dynojet, it made 10.9-11psi according to Sam. The only change is I put in the X pipe on my APS exhaust since my car was last on the dyno at dynocomp where it made "12 psi"

I don't think my belt was slipping. Sam showed me the boost curve on his laptop as it was logged from the Fcon. It didn't taper off, it continued to rise, but hit a maximum of "11 psi" - I don't know the details why, but that's what was logged. Also the tq curve doesn't start dropping at any point in the upper rpms like it did in all my previous dynos when the belt would slip

I was talking with a guy there who was running the 3.12 pulley and he said he was getting 9 psi - but of course a little different exhaust/engine setup than mine. AZ's elevation is 1250 ft and Ontario, CA's elevation I think is around 950 ft. If true, I'd think the boost pressure would be higher at GTM than in AZ, but I dunno. The numbers were logged as they were

My redline is 6600 rpms. I'm not reving beyond that at this power level on a stock bottom end with stock valve springs. It would continue to make power beyond 6600 rpms, but I want the engine to live awhile longer. Dynocomp took it to 7000 a few times, but Sam wasn't recommending it

I don't think Sam fudges his dyno numbers. I think most people are in agreement they're a reputable shop with a reputable tuner and a consistent dyno. I'll call Sam and ask him if the numbers were SAE, STD, or uncorrected. I've been to two shops now where my torque was above 370. My gut reaction is maybe it's true. I didn't think I posted any excuses why I didn't make more. I said I could have done a "fake" dyno run where the engine is cooled off just for the sake of bragging or waited until it was colder outside, but I see those as BS runs not really like how the car really would be in the real world so I chose not to do any of that. It'd just be a number anyway, not like my car would permanently gain that power

 

oh cool, i thought they had a dynojet for some reason.


what kind of dyno is that?? wondering what it would make on a DJ ??


nice work though man, have fun with your new found power levels!!

 

it is a dyno jet, it's an AWD dynojet

 

Running a dyno with the motor half cool isnt fake . And doing one with the motor totally cold is stupid . And you didnt say fake , you said ...well you edited your first post so I cant quote you .
Something else struck me . You said you did a before dyno and got several 380whp runs...then you said it was up to 420whp . How does one gain 40wp on just doing dyno runs back to back ? Then by tuning alone , you gained another 57whp ? Wasnt your original posted number on My350 at 430whp and on G35Driver 435whp , but a before dyno at GTM shows up at 380whp . What gives with that ?

 

WOW, VERY impressive Sentry, that powerband is the best S/C powerband Ive seen. Id love to see you run your car at sea level you would go well into the 11's with a good launch. Love how that TQ curve doesnt fall off, and how the power just keeps climbing, very nice.

 

good numbers on a supercharger.

 

very nice!! i am extremely pleased to hear that your fuel issues are finally resolved. the powerband looks great and smooth.

 

Good work sentry, I myself went to GTM and got the Fcon Vpro installed and a few other things, Sam and his team do great work.

 

superb power band...very nice. She was making power all the way to redline.

 

Very nice bro.. Can't wait to see her.. Are you going to Vivid this weekend to see Cody's car on the Dyno?? if so I will see you there!

K

 

Sentry
Are you running full slicks now ? Just wondering , because you said you had full traction in 2nd gear . WOT in 2nd gear and you didnt light up the tires ? You think with that kind of power and your 3.9 rear end...3rd gear would be hard to get traction . Im just thinking out loud here , my 3.3 rear end , AT5 , and 420whp , I cant even think about going passed 1/3 throttle with out lighting up the tires in 2nd gear .