2002 Turbo Maxima 404WHP & 393FT-LBS
07-02-2012, 03:13 PM
#1
2002 Turbo Maxima 404WHP & 393FT-LBS
FINALLY ALL MY HARD WORK PAID OFF!!!
Custom Turbo setup using Cattman Headers and Y-pipe with 3" Cattman exhaust.
Precision 6266 Ceramic Dual Ball Bearing Turbo, Turbosmart Hypergate Wastegate, Turbosmart BOV. Tuned with Haltech 350z Platinum Pro with Dual Channel Wideband Controller. 8PSI
404whp & 393ft-lbs
RT Tuning hooked it up!! They were having a couple of problem on the dyno.
Problem 1: As you all know I have been having problems with these widebands since they were installed. On top of NOT being calibrated they were installed backwards. Someone installed Bank 1 Sensor in BANK 2 and vice versa.
Vince pointed out to me when you put the Haltech in O2 sensor control the 2 widebands go the opposite way...for example AFR on bank 1 starts to go to 19 then the AFR on bank 2 starts to go low like 12. When O2 correction was enabled this is what was happening. Vince, the tuner, thought this was because someone put the widebands in the wrong bank. So they swapped the widebands and that was IT!!! All this time the IDIOTS put my widebands in the wrong bank.....so what was happening was this: Bank 1 sensor would try to correct to 14.7AFR but it wasn't seeing it because it was actually correcting Bank 2 so it would continue trying to correct...and VICE VERSA. This is what caused AFRs on both banks to run away from eachother. Anyway simple fix with a swap of the widebands.
The second problem was spark plugs were installed and were not gapped for turbo so they were blowing out........was making 360whp on 6.5psi with spark plug blow out!!! Anyway they were removed and gapped properly.
After the problems were ironed out the car ran hard on dyno and tuning went very easy. The car runs SUPER SUPER hard!!! The thing sounds like a freakin transformer from HELL when the turbo is spooling!!! No way to explain it you just have to hear it....pulls hard ALL the way to redline. Had about 5 people from the Philly crew show up to support. We all went for a test drive and with 6 PEOPLE in the car thing pulled HARD AS HELL!!! I can actually really feather 2nd so it doesn't peel thanks to those fat 245 tires. 3rd and 4th gear are just WICKED!!Driving normally you can barely hear the exhaust note.....what a sleeper!!!
Vince did say torque is probably dropping off because of the 2.5" downpipe I used. He said its fine but if I wanted torque to remain more flat then a 3" downpipe would be good! But he said the car makes GREAT power. The shop that installed the turbo installed a manual boost controller and RT Tuning used that to turn up the boost 1 PSI so I could get to my 400whp number. Glad I bought that
I'll try to get some videos later. Its my 3rd wedding anniversary so I cant be messing around with the car all day....have to spend some time with the wifey!! So this post ws kind of written VERY fast so if it doesn't make sense thats why......
Custom Turbo setup using Cattman Headers and Y-pipe with 3" Cattman exhaust.
Precision 6266 Ceramic Dual Ball Bearing Turbo, Turbosmart Hypergate Wastegate, Turbosmart BOV. Tuned with Haltech 350z Platinum Pro with Dual Channel Wideband Controller. 8PSI
404whp & 393ft-lbs
RT Tuning hooked it up!! They were having a couple of problem on the dyno.
Problem 1: As you all know I have been having problems with these widebands since they were installed. On top of NOT being calibrated they were installed backwards. Someone installed Bank 1 Sensor in BANK 2 and vice versa.
Vince pointed out to me when you put the Haltech in O2 sensor control the 2 widebands go the opposite way...for example AFR on bank 1 starts to go to 19 then the AFR on bank 2 starts to go low like 12. When O2 correction was enabled this is what was happening. Vince, the tuner, thought this was because someone put the widebands in the wrong bank. So they swapped the widebands and that was IT!!! All this time the IDIOTS put my widebands in the wrong bank.....so what was happening was this: Bank 1 sensor would try to correct to 14.7AFR but it wasn't seeing it because it was actually correcting Bank 2 so it would continue trying to correct...and VICE VERSA. This is what caused AFRs on both banks to run away from eachother. Anyway simple fix with a swap of the widebands.
The second problem was spark plugs were installed and were not gapped for turbo so they were blowing out........was making 360whp on 6.5psi with spark plug blow out!!! Anyway they were removed and gapped properly.
After the problems were ironed out the car ran hard on dyno and tuning went very easy. The car runs SUPER SUPER hard!!! The thing sounds like a freakin transformer from HELL when the turbo is spooling!!! No way to explain it you just have to hear it....pulls hard ALL the way to redline. Had about 5 people from the Philly crew show up to support. We all went for a test drive and with 6 PEOPLE in the car thing pulled HARD AS HELL!!! I can actually really feather 2nd so it doesn't peel thanks to those fat 245 tires. 3rd and 4th gear are just WICKED!!Driving normally you can barely hear the exhaust note.....what a sleeper!!!
Vince did say torque is probably dropping off because of the 2.5" downpipe I used. He said its fine but if I wanted torque to remain more flat then a 3" downpipe would be good! But he said the car makes GREAT power. The shop that installed the turbo installed a manual boost controller and RT Tuning used that to turn up the boost 1 PSI so I could get to my 400whp number. Glad I bought that
I'll try to get some videos later. Its my 3rd wedding anniversary so I cant be messing around with the car all day....have to spend some time with the wifey!! So this post ws kind of written VERY fast so if it doesn't make sense thats why......
Last edited by ranmas2004; 07-18-2012 at 06:03 PM.
07-02-2012, 05:03 PM
#8
Senior Member
Join Date: Nov 2005
Location: Carlisle, PA
Posts: 459
Really nice numbers. Now start saving for some tires. I had RE-11 255/35/19 and could roast 1st, 2nd, and most of 3rd what a freekin blast. Had so many kills with that car.
Taking it to the track?
Again congrats.
Taking it to the track?
Again congrats.
07-02-2012, 06:07 PM
#12
07-02-2012, 08:48 PM
#14
YEAAH bro...you next.
Thanks, I might have you custom fab a 3" downpipe for me in the future....maybe next year and re-dyno to see if that torque picks up on the top end...I think it will.
AFR was anywhere from 11.5-11.8. I have to connect the PC up to the Haltech to get the timing. But the tuner did say he could have leaned t up more but he went conservative...which is fine I don't care. Thing makes GOBS of power and torque.
07-02-2012, 09:44 PM
#16
Acceptable AFR, it would be great if you could share the timing map/table when you have a chance. I am curious to see what timing your tuner went with. I am guessing he kept it at max 16-17degree's.
07-03-2012, 03:18 AM
#21
a good tune and you would be aight...stock 350z pushing 500whp on stock motors with a good tune
07-03-2012, 04:53 AM
#23
I don't know if I'd want to push that much on my daily driver. If it was just a weekend car I would turn the boost up. Actually it IS a VERY good tune. I have a manual boost controller in the car but Im not going to touch it.....
I video a 3rd gear pull last night but dont want to get banned so Im not going to post it.....BUT I do have a link to my youtube account below (HINT HINT)
07-03-2012, 05:50 AM
#24
lol...i think 12 psi on that turbo would be closer to 500whp
07-03-2012, 09:37 AM
#29
did you see the 3rd and 4th gear pull also?? 
Yeh man car pulls HARD!!!
Honestly alot of people dont like Federall SS 555s but those thing GRIP....I have no problem with traction at all. I can even boost in 2nd gear holding the throttle real light and still pulling and not loosing traction...when I slam 3rd it doesn't loose ANY traction.....fantastic tires!!! Makes it even more fun to drive!!!
I just felt sorry for that 2012 Mercedes AMG last night.......
Yeh man car pulls HARD!!!
I just felt sorry for that 2012 Mercedes AMG last night.......
07-04-2012, 05:31 AM
#37
Go out and race some vettes, cobras, highway fun!!! great #s... OH and if you can race a 12 psi SC 3.5 any gen max so i can show the vid to a friend lmao... he still misses his old V1 kit .put it on FB
highway fun!!! great #s... OH and if you can race a 12 psi SC 3.5 any gen max so i can show the vid to a friend lmao... he still misses his old V1 kit .put it on FB
07-04-2012, 05:38 AM
#38
well if I do it will be a 4gen on e85, stock motor, sheet metal intake, fender exit cutout and hopefully 500fwhp
again congraz enjoy the car, get a oil cooler .. and I wouldn't change anything less it's just to get a # on the dyno
again congraz enjoy the car, get a oil cooler .. and I wouldn't change anything less it's just to get a # on the dyno
07-04-2012, 07:17 AM
#39
I thought this was VERY interesting..
I took my fully bolted on and tuned ALL Motor Maxima tune and laid it on top of the Turbo tune......
Before (All motor): 275whp @6000rpm & 258ft-lbs @4700rpm
After (Turbo): 404whp @6200rpm & 393ft-lbs @4500rpm
DIFFERENCE: +129WHP & +138FT-LBS @8psi
As you can see there is no lag at all.
At 3000rpms Im making 148whp & 260ft-lbs vs. 127whp & 224ft-lbs.
At 3500rpms Im making 192whp & 288ft-lbs vs. 154whp & 231ft-lbs.
Basically increases through out the ENTIRE RPM BAND!! SWEET!!
I took my fully bolted on and tuned ALL Motor Maxima tune and laid it on top of the Turbo tune......
Before (All motor): 275whp @6000rpm & 258ft-lbs @4700rpm
After (Turbo): 404whp @6200rpm & 393ft-lbs @4500rpm
DIFFERENCE: +129WHP & +138FT-LBS @8psi
As you can see there is no lag at all.
At 3000rpms Im making 148whp & 260ft-lbs vs. 127whp & 224ft-lbs.
At 3500rpms Im making 192whp & 288ft-lbs vs. 154whp & 231ft-lbs.
Basically increases through out the ENTIRE RPM BAND!! SWEET!!
