Jeep Strokers

Hello,

I need to try and understand what I need to tune my stroker once it's installed. I want to buy the parts soon.

1997 Jeep XJ
4.7L alum head stroker 11:1 comp (hopefully 300 HP or more)
26 lb injectors

It's my understanding there's not an adjustable FPR for my year? I believe I've read I would have to convert to an older style fuel rail to use an adjustable FPR.

Looks like I will need an adjustable MAP sensor. Timing can't really be played with unless you can tune the "computer". I plan to run a vacuum gauge and a wideband AFR gauge.

Can someone give me a rundown of what I need to do? I searched and didn't really find a thread like this.

You could install an adjustable fuel regulator when the factory one goes out.

I believe 1997+ had the fix regulator at the fuel pump in the gas tank. The factory pump on my 01 XJ went out on mine, and then had an inline high-rate pump with adjustable fuel regulator. The regulator was installed under the hood, so adjustments are easier.

I have a mid-range stroker build with 10:1 compression, Eldebrock aluminum head from Russ Pottenger, and 703 Bosch injectors. The AFRs are good overall. I have not done any other tuning.

Thanks for the response. Can you tell me what pump and FPR you bought?

The pump is a Walpro 255LPH inline. They also have an intake version. I’ll need to find out what FPR was used.

The FPR is from Mallory.

Thanks for the insight, I'll be looking into those parts

I can help you with stock ecu tune

I now have it about 99% tuned. It's an animal. Waiting on 1 more possible revision from Ryan at FRP