so Nealoc187, MAX2000JP, BEJAY and I went and got our cars dynoed today....good news for Neal and Brian (BEJAY) Neal pulled 181hp, and 189tq with just an intake and y-pipe on a 96 GXE 5-speed with 121K miles on the clock. Brian (BEJAY) pulled 188hp and 207tq with his 97 SE 5-speed with all the bolt-ons..and a gforce ecu.

NOW for the bad news....I, with my FULLY N/A modded 97 SE 5-speed pulled only 160hp and 174tq....these are WORSE than STOCK 5-speed numbers...I'm running on brand new plugs...and just replaced my knock sensor....my compression is great in every cylinder...my cat was recently replaced with an R/T unit, and I've tried everything that I can think of to get my car running right again. the only think I can think of now is the injectors....rear bank injectors to be exact....I NEED HELP...anyone have any ideas at all for me???

 

Knock sensor????

 

already done....don't even think there was anything wrong with my old one....but I have a new one as of yesterday...

 

if you are running colder plugs .. those numbers are normal.. colder plugs will bring you at least 20 hp less

 

stock NGKs....brand new....stock heat range....

 

what every became of the cat issue? you see VeeTec just found out his was clogged

 

yea..I replaced my stock cat with an R/T cat

 

fuel filter change? you running walbro right?

maybe what you need next is a good engine cleaning.. might be carbon build up..

 

He just recently replaced the Fuel Fiter and had a Carbon/FI cleaning.

 

how about the dyno plot.. that way we can see what rpm's he is loosing power and then go from there..

 

This reminds me of when Greg was having the same problem.

 

Will be posted soon along with all of them. Szymon aka Max7 is gonna scan them for us.

 

Gforce ECU , eh?
on a 97 eh?... 8 hp over a 96. but wow. lookie there. soo much more torque..

doo bee doo bee doo...

 

 

 

you're the smartest guy on this forum.

simply amazing.

 

and you are one of the dumbest..

congrats..

 

ummm, i'd think about maybe haveing your injectors fixed up with that thing don in texas offers. supposed to be really good.

 

could you tell me more??

 

http://www.mobiletek.net/rc.html

 

Are you running a Walbarro fuel pump? If so, are you using an aftermarket FPR? If not, you could be running rich and killing your power...

 

Sounds like your suffering from slow VQ syndrome . Try doing a power balance test to see if a cylinder is running weaker than the others. If that doesn't work get another ECU and check your EGR valve for build up.

 

yup i forgot about that, rich makes you run slower. if you have a walbro pump even a few PSI can make you have less.

-steve

 

He has a Walbro 255 pump and Sard Fuel Pressure Regulator.

 

How do you go about doing this?

 

what's fp settings???

 

well I'm at about 38psi at idle...though this varies from about 36-39psi depending on if the car is warm or not....the thing that bothers me is even with the adjustable FPR I'm still getting about 52-53 psi at WOT.....so...I dunno....

 

You need to go lower on your FP. You should be at 34psi at idle.

 

$hit! there's a bunch of posts on these forums in which people say 38 idle, 43wot...but that just didn't seem right...only 5psi difference for idle vs. WOT....well I guess I'll turn it down tomorrow...and see where I am then.

 

there's your problem right there, that's about 5psi high and i bet that's what killing your N/A power, the downfall of NOS is it makes you slow NA.

 

With a nissan CONSULT II. Another way of doing it is to unplug the fuel injectors/ignition coils to each cylinder. If one of the 2 isn't working 100% the engine won't run as worse as if they are working 100%.

 

how would you dissconnect the fuel injectors? I can see how you do the ingition coils