Bruce95fmla

I refuse to give anyone 800 dollars on ebay

turbo1g

no need for S AFC to take fuel cut out it can be taken out by adjusting vaf i had ran 23 psi with no fuel cut and afc set to 0% corection

rkives

What did you do to the VAF? I have read on Autospeed a DIY boost cut remover, that puts a diode(s) inline of the VAF output to the ECU. I haven't heard of anyone with a GTX ECU doing this.

The lack of boost cut @23 psi, didn't you already have the SAFC inline bypassing the ECU reading then?

beachnut

Hey Rick, didn't you get a GTX manual somewhere before you started your project? I'd like to get my hands on one.

rkives

Yes I did, it proved invaluable! Nothing like getting it from the horses mouth. You can only trust info on the net so much

You have to email George Davies about getting a hold of the CD with the manuals.

beachnut

Thanks Rick, I emailed him.

Ok, here's my next question:

I bought a set of GTX 330cc injectors. Can I install them and the fuel pump (whatever I get, Walbro or RX-7) ahead of time without dumping excess fuel into the motor? Will the stock LX ecu keep the fuel pressure and amount the same as with the stock injectors? Just thought I'd get a head start.

rkives

I don't know for sure, but I would think that adding the fuel pump would be safe. The FPR should just send the unused fuel back to the tank. As far as the injectors, there is no way the ECU would know it is anything but the OEM injector. This would mean that you would be running very rich with the higher capacity injectors and risk washing the wall of your cylinders. I'd wait on the injectors.

Mik

I'll back Rick's comment of the injectors. I tried to run my GTX engine with the 330cc injectors and no turbo piping (N/A). It ran super rich and the guy following me (just in case) said he could smell the unburnt fuel.

beachnut

Thanks guys, I'll wait on the injectors.

I picked up a really sweet FMIC a few days ago on eBay. It's from an '89 Starion, which is supposed to be the best year since it has 14 larger cores vs. 16 smaller cores and can handle up to 20 psi. It's in almost mint condition, plus it's been highly polished !

Mik

That is sweet looking indeed.

THEGOLDPRO

yeah if i had room, i would have bought the starion intercooler also. it looks good man

beachnut

Well, getting the Starion FMIC in my car is gonna be a challange too, what with my AC condenser and dryer in the way. I'm either gonna have to gut out my crash brace or get a jspec bumper.

Identity_X

That intercooler looks brand new. Awesome! Are you sure it will not fit properly? I know that getting the j-spec bumper will make everything a lot easier but I never knew that it HAS to be replaced in order to fit a Starion FMIC in there. Also, where will you get the IC piping done? Do you plan to just buy the necessary bends and assemble it yourself?

beachnut

Once I get the IC, I'll check it out. But according to the dimensions, I don't think it'll fit unless I shave a little off the brace and lower grill area. I'm also thinking of trying relocate my AC dryer. I will probably mock up the piping with some PVC, then get the bends from JCW and have a muffler shop do the welds.

beachnut

Ok, so now I'm re-thinking the GTX ECU, like I'm going to get it instead of the S-AFC and the boost controller. My reasoning (which may be flawed, so help me out here) is that it seems like there's alot of tuning involved going with a bunch of piggybacks - tuning that I'm not sure I want to mess around with. I'd rather go for something more plug-n-play. I know I'll have to extend the harness, but since Rick already did it once perhaps he can shed some light on the subject when the time comes !