New Injectors?

[blacksport]

I searched, nothing helped me....


I just put a cam in my car. I havent got it tuned yet.


On higher RPMs, 5300 +,my car will drop off and lose power. It still gains speed but slowly and is like its not getting enough fuel I wasnt sure if this was because of the car not being tuned or if my stock injectors are dont have the balls anymore for my new set up? Should I wait til after I get a tune to figure it out?

But then again I dont want to shell out $550 for a dyno tune and then have to get it tuned again because i need new injectors.

[blacksport]

Anyone?

[FireFighter]

You need to have it dynoed to see what your a/f is and where you are really starting to lose power.

[oil pan 4]

Fuel filter, start there.
A dyno tune to find a fuel problem, I don't think he is made of money.

[blacksport]

I'm getting it Dyno Tuned when my tax return comes in. I guess I'll get that done and see how it goes from there.

[ February 19, 2005, 01:07 AM: Message edited by: blacksport ]

[1998silverbird]

Just get it on a dyno.. I put my motor in a month ago and hooked up my wideband to it and to a surprise my a/f was at 11.2 which is really rich, I also have a Walbro 255 pump.. I leaned it out 6 percent and got it around 12.8.. I am running stock injectors with a pretty big cam and ported heads and intakes..

[blacksport]

I'm pretty sure mine is running lean. It will fall on its face at higher RPM's like it doesnt have enough fuel. It doesnt smell rich either.

[38fury]

Stock injectors on the 3.8's will support a lot more fuel than you run in stock trim. It needs a tune. If you've got a buddy to get HPtuners its half the cost of a dyno tune, plus you don't have to go back and tune everytime you do something different. You just need to know what you are doing or have a friend who does.

[oil pan 4]

I see you have a 3.8 so you can't give it the timing ajustment it needs with a timing light and wrench.
I think you should get the HPtuners, work on it and you will figure it out.

[nightrida]

welcome to the problem everyone is having right now. read the other thread called gtp injectors. it will start to help your problem.

[arthansen]

With a GT2 cam and supporting mods you have you will need injectors. Nightrida called it, search GTP injectors and you will get the info you need.