Contour Enthusiasts Group Archives Forums Modifications Forced Induction Turboing my focus swap

do you have any pics of said turbo setup..i'm interested to see how it fits in there..i might be picking up a 5spd zetec for cheap..

I am going to get pics soon I promise, but my only way to get them is to borrow my sister's camera. So it may be a while.

Update, its still running great. I am afraid to boost it anyhigher until I get it tuned right, but its so much fun to show the local rice cars whats up, at the track of course

Are you seriously running that huge MAF, bigger injectors, variable fuel pressure, the AFC and boost?

If so I wouldn't do that. You're timing will be way off. Untill you get it tuned right, that huge MAF isn't properly matched to those injectors. Just keep the stock MAF on there for now. It should do 4psi easy and will give you an easier time for now.

Yeah I am seriously running all of that stuff. I don't even have the stock maf housing anymore, maybe a trip to the yard for one. Cus I seriously don't want to ruin this engine. Assuming enough fuel what would be a safe psi to run with the stock maf?

IIRC, 4 to 5psi, that's what Seawulf has said in the past.

Do you have an OBD-2 scanner? I'm guessing that as long as you don't max it out, you should be OK. 170ish crank HP.

Seawulf, feel free to correct me. I have a pretty crummy memory.

BP

The amount of psi depends on the turbo. Typically 4-7psi depending on how much air it's flowing. On my stock wrx turbo at around 6psi I'd just hit 4.9v on the stock MAF.

That did 146whp and 170wtq on the stock fuel and ECU. My downpipe is 3" though and my exhaust was leaking at the flex pipe, but the exhaust was needing to be redone anyway.

Yeah, odds are your big MAF is messing up your whole setup causing you're poor fueling.

Yeah its definately richer then it needs to be, I assume the downside of a stock MAF is the amount of air it can flow before it maxes out. I think returning to the stock size MAF is a bad idea considering I want to do more boost. I am just going to get this thing SCT tuned. I have had much better luck with my safc then anyone had predicted but I know it is at its limit for what I need. Now its time to save my $$$ and find a competent SCT tuner available locally. So far I haven't had any pinging but it would only take a little bit and the engine would be blown.

Considering how easy it is to put the stock MAF and injectors back in, why not? That way you will have a fairly safe (low-boost) setup until you have the cash for the SCT stuff.

With the stock MAF, you will know that your load values and spark advance won't be screwed up.

Do you have a rising-rate fuel pressure regulator? You could leave that on there for added insurance.

BTW, you probably could find a used MAF via www.car-part.com for around $20.

HTH,
BP

Well I already have low impedence injectors factorys are high impedence. The harness has been modified to run the low impedence injectors without burning out the computer, so switching back to factorys would be a lot of work. Also what would I have to gain from switching back to the factory setup, I have just under 1000 miles now on the turbo setup without any pinging so why change what isn't broke. Its like you guys think I am having trouble getting enough fuel, which simply isn't the case. I am just going to wait and get it tuned rather then swapping stuff that won't provide nearly the fuel I need. Yes I have a rising rate regulator.