And GTR gods I need your help..I had emailed a few shops and I guess im being ignored because they may feel
Like they are wasting their time
I am a proud new owner of a 2009 GTR. After lurking and seeing the drama, between these forums it seems gtr heritage is a better fit for me to post my questions without being attacked. I had to change my screen name because the politics in gtr life were ridiculous, I started questioning everything when that tsm owner guy’s post kept getting moved and adjusted. (From what i saw)
Anyways a few questions, my build sheet below FROM what previous owner told me the car had—
-Greddy 3.8 Short Block
- JE PISTONS
-Tomei PON CAMSHAFTS 256/264
Hks headgasket + manifold gasket
HKS GT800 turbos
-greddy 29R XL turbo kit + greddy bov
-sp engineering 90mm suction kit + greddy airnix filter
-titek resonated SUS midpipe
-HKS LEGAMAX SUS exhaust
-hks spark plugs
- 2 AEM 340LPH E85 FUEL PUMPS*****
-SPE FUEL PRESSURE REGULATOR KIT
-spe oil catch can
-Visconti tuning fuel pump hardwire kit.*********
-SP ENGINEERING STAGE 1 Transmission
-PPG 1st gear
- dodson circlips 1&2
- dodson gear lock
-dodson oil pump upgrade
- dodson o ring
-exedy steel plate
-7 disc clutch upgrade (14 disc)
-greddy DCT cooler
The car made 771awhp. 640lbs tq.
The the issues started happening. There was a fuel/boost cut?
So my shop discovered one of the hks pumps going bad so we swapped them with 2 AEM 340lph fuel pumps
And seemed to be running fine. So then, the car was purchased by me and somehow the CEL light came on, and come to find out there was a misfire on ALL cylinders? So the guy I was buying car from took it to his friend and found ALL spark plugs were fouled (assuming from the boost cut or fuel cut)? Well, changed the spark plugs and bam,
Cel light gone.
Ok cool NO BIG DEAL? Car runs fine for a few days I find myself roll racing agains a 700rwhp supercharged mustang from a 55 roll and then I notice terrible loss in performance like it didnt want to go past 5k rpm or struggle for a few hundred rpm, and then continue making power. Something was wrong and it had to be something really stupid. Mustang owner felt like a boss and started showing everyone on video how he destroyed me
So the problem got worst, but only happen when the car was fully warmed up? The idle was shitty too but NO CEL light?!
So I took it back to the shop and currently theyre telling me, that one of the spark plugs was misgapped. (♂)
But I told them to get on the car again to see if they feel that hesitation again. They indeed felt it just not as bad. And car had to be fully warmed. I think after regapping the spark plugs properly it did help the situation but not completely fix it. They said they ran a data log by some guy named ben lenny (apparently hes amazing) and the car is tuned on EKOTECH? The shop Said that the duty cycle on the injectors were at max capacity. They were going to up the duty cycle on the fuel pumps and turn down the injectors down a bit so they wouldnt run at 100 percent load?
Now, I am not a complete idiot when it comes to cars because I used to have a 300zx TT (the 90s godzilla) something tells me that I may need bigger injectors and a third fuel pump, but I am not 100 percent sure. I want to fix this car so I can mod it further I really want 900awhp and i will need to find a good shop to map me out products I need to make this happen based on what the car has now. This car has been my dream car since I was a boy. When its running right (not fully warmed)? Its friggin an animal, but I feel like it has so much more in it... I just need some advice guys...
Also I am tossing the idea of e85 as well... just need guidance... please can anyone give me their inputs?
Edited by Razer, 15 May 2019 - 11:34 PM.