Jeep turbo....FMU or AFC?
 

Im turboing my 95 XJ 4.0 I have been trying to figure out how to get some fuel in it cheaply. SO I bought an FMU, an inline booster pump, a VAFC, 24lbs ford injectors, and a MSD BTM. Im trying to decide on what to run. Im only going to run 8 psi on a T3/T04E .48/.60 ching chong.

1. stock 19 lbs injectors, FMU, pump, and BTM but then I high fuel rail pressure.
2. AFC, some 30+ lbs injectors, and BTM. High ignition timing reguardless.
3. AFC, 24 lbs injectors and the FMU to bump it?

Anyone have any good ideas? This setup may not get intercooled due to lack of room either so the timing thing may be an issue.

Re: Jeep turbo....FMU or AFC?
 

Option # 2 just set the BTM with a steep retard and then carefully play with it.Those are pretty low compression anyways arent they?

Re: Jeep turbo....FMU or AFC?
 

switch to a holley 600cfm x-bore and be golden

Re: Jeep turbo....FMU or AFC?
 

8.8 comp. Its pretty low. The other Jeep guys run no retard with 2 bar map sensors and let the advance fly with no regard. They seem to take it well.

Re: Jeep turbo....FMU or AFC?
 

Is '95 the year Jeep started using crack prone heads or was newer?

Re: Jeep turbo....FMU or AFC?
 

00-01 0331 casting

Re: Jeep turbo....FMU or AFC?
 

get an old amc 258 block and swap a 4.0 head on. low 10's for comp and more hp then the 4.0

Re: Jeep turbo....FMU or AFC?
 

WTF does that have to do with my engine management question? I would build a stroker before doing that.

Re: Jeep turbo....FMU or AFC?
 

bigger stroke

Re: Jeep turbo....FMU or AFC?
 

no, Im talking 4.7 stroker. Hesco head. etc....