UNDEFINED76

i got a 1996 nissan maxima and i changed my motor because i blew it....i installed the 2001 nissan maxima engine with a pftb port matched and now my car came slower.....i have a intake, warpspeed y-pipe, magnaflow cat, unorthodox udp with stock ecu....nothing to tune.....
why am i so slow???? what can i us to tune or to advance my timing???

95naSTA

iTrader: (10)

Definitely tune it. I know someone who put down around 150 whp without tuning. They made/put on a 2.5" cat back, tuned in the larger injectors w/ a wideband, and made 190ish whp.

NmexMAX

iTrader: (22)

150 ??
The PFTB is larger, but the MAF is still a little smallish.

First define slow.
Second get a dyno
Third...Profit??

Stephen Max

iTrader: (59)

No restriction due to the maf. It is 70 mm just like the PFTB.

abci30

iTrader: (11)

NmexMAX
it was more like 160 ish but i was there for the dyno. Maybe he will say something about the low numbers but it deff happened.

UNDEFINED76

well.....put it this way....i had my stock motor vq30 from my 96 (the original motor) with intake and gutted main cat and it was way faster then my setup now....

setup
2001 nissan maxima motor
00vi port matched to 70mm pftb
intake
warpspeed ypipe
magnaflow catalyst conveter
unorthodox underdrive pulley
act 6puck clutch
i did a compression test and it falls in spec with the book....

i dont know why my car is so slow


my fren has a 1993 integra ls with intake and he pulls me ....thats how slow my car is....

please help me figure out why my car is slow

NmexMAX

iTrader: (22)

I confused the PFTB to be the same ID as the FWDVQ35 TB.

VQ'ed

iTrader: (2)

Ouch!!! get this thing working and get the teggy a run for your DE-K money!!!

Mad-MAX_SE

iTrader: (2)

don't forget you'll want a RPM window switch for the 00vi to open. I don't know how much that would hurt you with it being closed all the time (it's not terrible at lower rpms with a MEVI, little worse than the USIM, but not terrible).

UNDEFINED76

well i took out whe butterfly....it runs faster with it out...but i still loss....need advice on what to do....

i also got a 3.5 motor but dont have the cams redrilled....i can put the 3.0l cams but i dont have a adapter for the pftb to go on the 3.5 manifold...

unless

i can use the 3.5 bottom with the 3.0 heads and my 00vi with the pftb....

its alot of work but i can do it...i dont wanna rush into dropping the 3.5 till i get the cams drilled because i ordered cam spacers from TILLEYS99 last april of 06 and still didnt recieve it and tried to dispute it and i couldnt because i waited to long....but if i was to run the 3.5 i want the 3.5 cams....

speed racer

iTrader: (10)

You need something to open the VI up. Also, with the DEK injectors your going to be running a little rich. With out a tune you are probably right about the car feeling slugish.

UNDEFINED76

how would i tune it out??

UNDEFINED76

besides a piggy back controller

NmexMAX

iTrader: (22)

Larger MAF sensor housing for a very raw leaning affect. But you would want to monitor the reading (AFR) to stay safe.

http://forums.maxima.org/showthread.php?t=137148

Pony up, get a wbo2 & piggyback.

UNDEFINED76

i dont want a piggy back because i dont know how to tune and people down here in hawaii charge a arm and a leg....

larger mass airflow sensor housing as in the z32 mafs???

UNDEFINED76

or would i be able to run the 3.5l mafs??

goldtooth

iTrader: (56)

ghetto-tune... on the street.......with a WB offffkourse. and a VAFC2. and a laptop

UNDEFINED76

how do u tune that??? whats a wb offcourse???

speed racer

iTrader: (10)

Tuning is fairly simple. You first want to get a wideband that can provide datalogging. When you upload the information you will see A/F for a particular rpm. Than you go to your piggy back...lets say a VAFC-II. You want to tune 13.0 to 13.2 for NA. Now the way to tune on a VAFC is you go negative to lean it out and go positive when you want to add fuel. You will understand when you get it.

abci30

iTrader: (11)

not to take business away from tilley but 95naSTA is selling cam spacers. He made a whole thread and it didn't seem like too many people were interested so i assume he has a couple sets left. Pm him for more info.

NmexMAX

iTrader: (22)

It wont do any good because the FWD 3.5L MAF is the same I.D. as yours. I corrected myself as I was thinking of the FWDVQ35DE TB as opposed to the PFTB, so completely disregard my first post. As for the 'raw' 'tuning I mentioned, you probably want to stay waywa from that as well since you need to become much more familiar with the general principle/concept behind all of these proven theories.

If I were you, I'd get very familiar with the FSM as well as the stickys on top of this forum page. Also, just because you 'lose' on the street to a certain car, doesn't mean you're slow and something is wrong. You need tog et your hands on some 'tools'. Whether it be a 1/4 mile track, a dyno, or data logging software. With any one or combination of tools, you can pinpoint a problem if there is indeed one.

If that's the case, then delete your thread because you're running out of options FAST. It's not hard to 'tune'. Speed racer put it as simple as possible.


WBo2 sensor = wideband o2 sensor.

Seems as if you need to reread the stickys, you seem to need to brush up on a few items.

UNDEFINED76

well i guess i might need piggy back after all....if i get the greddy emanage ultimate would i still need a wideband???