Ok guys I'm not being rude but every time I ask a question I never get complete answer. Once again I posted the question about smaller supercharger pullies and what was required to run them. I always get the same old, answers like
"More than just injectors"
"Ecu Work"
"Alot"
If you people are worried that someone may be copying you dont. All I want is a clear and consise answer.
If I install a 3.25" pulley will bigger injectors, and a apexi afc work with no other ecu mods. Also how many miles do you have on you supercharged max. Since they say that the 5spd are around .4-.5 quicker 0-60 so does that mean then that since the auto stillen supercharged max rates at 5.9 0-60 that the 5spd with an upgraded pulley could pull off high 4's.

 

Steve in Chicago.. a man i respect very much says:

you can run up to 10 lbs of Intercooled boost before changing any stock internals or anything..

on the safe side? you upgrade your Fuel Pump.

You get gauges to monitor whats going on in your engine...

You don't need injectors, you don't need ECU tunning.. however its always safe to do these things.

Steve runs 13.4 with his S/C Auto.. check 1/4 mile times 2nd page in the 4th Gen Forum.. he posted you can get his mods there..

2 SC Max's are over 100k on Engine.. JJW95SC and TBhag(sp) .. JJW is the only one with an Auto.. he is looking towards a Tranny Update..

Mehran in DC has blow his Auto Tranny before and so have others... its recommended that you get at least a vb Mod from Don in Texas..

Or you can get a Level10 Tranny Upgrade as DavidL7 had on his 96 Auto Maxima with an Upgraded Pulley..

Drew also had an Auto with level10 work and a Smaller Pulley.. drew also had a CAI, Y Pipe, and Exhaust.. he dynoed at 279+ hp to the front wheels.. and was running low 13's and may have run high 12's..

Mehran, David, and Drew did not have bigger injectors or ecu tunning..

do you need any more answers?

 

I dont know anything about running smaller pullies, sorry.

I do think that 4 sec times in a street tired front driver would be very difficult indeed. When you keep upping the horsepower on front drive streetcars, traction becomes scarce so standing start accel times will start to level off, but accel over longer distances will show the improvement.

 

Thank you that has been one of the best answers yet. Clear easy to understand and consise. Thats all I needed to know.

 

no problemo.. anytime

 

Although traction would be a slight problem. I think with the install of a lsd and some good driving a high 4 would be no problem at around 10psi boost.

 

by the way, if u have LSD will the car still have Torque steer?

 

I'm pretty sure youre torque steer would decrease a good bit. The lsd distributes the power better than a stock one does. Thus sending almost equal power to both wheels this will reduce the pull to one side but I dont think it would totaly eliminate it. A supercharged max I'm sure has some serious toque steer.

These are only my shade tree mechanic opinons so anyone feel free to correct me if I'm wrong

 

All LSD is going to do is transfer the power from the wheels that slip to the other wheel (sound like a subaru commercial) however if you get cattman or simular motor mounts you will reduce torque steer greatly... but once you start adding power again... it will slowly come back

 

do you need any more answers? [/B][/QUOTE]

Not to be a pain but I have one question, say you did go and upgrade the injectors would they work with just the apexi afc or do you still need the ecu reprogrammed? Thanks

 

The 5.9 Sec. figure you quoted from motor trend was a 97 5spd maxima{not auto} with just a cat back exaust and heavy momo arrow wheels and the big break upgrade along with suspension and cosmetic add on's. In about 2 weeks I will be doing some 0-60 tests in my I30 and I expect to hit low 5's maybe a 5.2 . My almost stock max ran a 6.33 0-60 and when I gutted it out it ran a 6.22 0-60 dash. These times are G-Tech times so they are not 100% accurate but very close. Anyways point being a highly moded 5spd max{like mine} will run low 5's no problem but high 4's? I think traction will be a big concern but it is definatly possible and it will be done, hopefully by me.

 

well...

the way it was explained to me..

if you use bigger injectors you will have to deliver more fuel to the car or the car will eventually stall or something like that..

to deliver more fuel, usually you tune the ECU by adjusting the fuel mappings to the ECU will work with the bigger injectors...

however.. an AFC also does this.. so technically you should be able to adjust the fuel delivery with an AFC to feed more fuel into the engine for the AFC...

but.. I have never seen it done or ever heard of anyone doing it.. so I personally don't know if it will work or not.. however in theory it sounds accurate..

if you have a 95 - 97 ... you maybe be able to get JWT to modify a 95 SE ECU to work with bigger injectors.. I think I30Krab did this for his car.. but I can't say for sure.. however I know JWT can modify a 95 ECU for Nitrous, so in theory they should be able to do it for a Supercharger..

Thank You For Playing

any more questions???Not to be a pain but I have one question, say you did go and upgrade the injectors would they work with just the apexi afc or do you still need the ecu reprogrammed? Thanks [/B][/QUOTE]