Topic: Turbochargers

[Rob the plumber]

I think TJ's use 24lb injectors already. With 36's and an adjustable MAP you might not even need an FMU. The only reliable way to tune with boost is with a wideband O2. You also might want more fuel pump than the stock one. I installed a 255LPh pump in mine. I think the stock pump is around 90lph.

[Jeep4banger97]

was the fuel pump hard to install? i am debating between the adjustable map and the FMU, i bought that book maximum boost and it recommended the FMU as one of the more reliable ways to control fuel with boost.

also how is your set up coming along, i have been debating doing this for a LONG time, but it was only until recently that i was gaining knowledge on turbos and fuel systems that i decided i could do this. im working on getting all the parts together before i start, but im pumped!

thanks for the help man! appreciate it!

[Rob the plumber]

The fuel pump was a pretty easy install. It was typical of any in-tank fuel pump. I am getting pretty close with mine. I have to run coolant to the turbo, connect the drain line, wrap the hot pipes, hook up the FMU, secure all the vacuum connections, and plumb in the cold side piping. I am waiting for delivery of my Ebay intercooler. :) I'd say I have a couple hours of work left on it.

[Jeep4banger97]

awesome man i just picked up my turbo today, im workin on an inter cooler and an FMU, got a 190 fuel pump from my buddy for free who upgraded to a 255 i dont think ill need the 255, what do you think? once i get the lines the electric fan, some piping a BOV etc ill be well on my way to gettin the jeep BOOSTED!

[Jeep4banger97]

hey rob just a question on the fuel pump did you get an install kit to go with it? cause i dont have that if you did could you tell me where i could find just the install kit?

[Rob the plumber]

I did not use an install kit. I used a GSS340 Walbro pump that I had lying around. It plugged right in. I had to mess with the mounting bracket in the tank a little though. No biggie at all. I picked up a strainer that fit the inlet of the pump from the auto parts store. I also think that 190 is plenty enough pump too.

[Jeep_Lust]

What size turbines are y'all using? The T3 is available in .63 or .48 A/R. The .48 is recommended for 1000 - 2200 cc engines, 100 to 275 hp. Since I'm only looking for 6 lbs. of boost, I'd think that the small turbine would be preferable, as it would spool up faster...

(I have to do something to blow up this 4 cyl. so that I can go to something bigger; as it stands it may outlast me...)

[Jeep4banger97]

Im running a T-25 off a 2nd generation Eagle Talon its is a .48 A/R it is rated for engines up to 2.2l so i figure my 2.5L will most definetally spool it really fast.

[Jeep_Lust]

Good. That's what I'll look for then. I'm going with the T3 because  A) that's what the guy selling the pamphlet on Ebay used, & B) there are a lot of them fairly cheap on Ebay (new, even). By the way, I wrote to "the flex pipe guy", and asked if his setup would work on a TBI engine. He said yes, you'd just have to find a bigger injector. He said that the rule of thumb was 10 lbs. over stock, as a starter.

[chardrc]

yes someone with tbi may do this... i did some research a few months ago. and form what i found injectors from tbi chevy v8's will work in the tbi 2.5l but no garentees as i haven't tried it or heard of anyone trying it. here is the thread where i put the info http://4bangerjp.com/forums/index.php?topic=3563.0

you you can go with an adjustable fuel pressure regulator / make one.... to raise the flow

[Jeep_Lust]

I was just comparing the Chevy TBI injectors with the Jeep TBI injectors, and they are outwardly identical. It turns out that even the 454 used TBI at one time. THOSE injectors should certainly pass enough gas (so to speak...)

[Rob the plumber]

That Ebay turbo guide guy charged me $60 for a bracket and never sent it. I told him not to worry about it and that i'll  just take his adjustable MAP instead. He said fine, and has yet to send anything.

[Jeep4banger97]

Rob how are you running without using an Adjustable map sensor, cause im considering running without it, cause i wanna run like normal without being under boost, i think the FMU will do just fine.

Thanks
John

[Jeffy]

Yet another turbo.  This one is on a TBI.  Not much info on his build though.

[chardrc]

have anymore pics of that set up? i was just going to ask how anyone was planing on mounting a turbo with the tbi because it has different belt set up.