TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Motorvation custom chip
TPI Vortech supercharger
BBK Throttle Body
headers/exhaust
Other then that, the engine looks stock.
No matter what I do, I cant get it to start. It has been sitting for a few years. The spark plugs look good, I changed the gas/fuel filter, oil, the EGR valve, cap/rotor and coil and the thermostat. I cleaned off the IAC. I triple checked the firing order also.
At most, itll just fart for a couple seconds, then die.
It has a fuel pressure gauge and it sits at around 45 or 46psi.
I was thinking about getting a new IAC and either getting new injectors or sending the stock ones out to get cleaned.
Does anyone have any ideas what it might be?
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If you have confirmed spark and fuel pressure, and you have stock injectors i would guess they are fused solid or full of congealed gas by now. call jon at FIC (fuel injector connection)... he can hook you up with replacements or rebuild yours.
__________________ The only difference between genius and stupidity is that genius has its limits - Albert Einstein
seriously.. call them. tell jon what you have, and he will set you up with exactly what injectors you need. he's very friendly and highly experienced.
in addition... i'm thinking you are going to need more than stock injector size (22lb) as you are running a supercharger. thats something he would also be able to help you with.
__________________ The only difference between genius and stupidity is that genius has its limits - Albert Einstein
seriously.. call them. tell jon what you have, and he will set you up with exactly what injectors you need. he's very friendly and highly experienced.
in addition... i'm thinking you are going to need more than stock injector size (22lb) as you are running a supercharger. thats something he would also be able to help you with.
Sounds good, ill give him a call.
Thanks.
Well I talked to them, they said I need to run the 30# Ford injector since i have a supercharger.
Last edited by Timothayyy; 08-04-2009 at 04:39 PM.
if the injectors are shot.. he ain't going to get it running.
Maybe, but it sounds like you're saying "buy Jon's injectors first, then continue troubleshooting if it doesn't fix it".
If injectors are really suspected then that's a fairly simple test of pulling the rail and turning over the engine to see if fuel comes out.
The rail would have to be pulled for an injector swap anyway.
i guess i'm just going by experience... leaving injectors (expecially stock ones) dry for a few years will cause them to corrode and start to lose functionality. hell, my car sat for a little over 1 year and while my injectors worked, and they passed the visual test (taking them out of the intake, kicking the car over) my car still ran like crap. finally broke down and swapped injectors and i was golden. the coils might be fine, the injector might not leak... they might even kinda work (like mine did). but i'm pretty confident that he will have drivability issues if he keeps those old injectors.
also keep in mind i'm assuming he's tested to confirm spark in his plugs, and voltage at the injectors. if he has spark, and he has fuel pressure, and a known previously running car won't stay running... to me that says injectors.
and i suggest jon because he gave me a good price and a bitchin product. i don't care if he buys from jon, summit, jegs, whatever. just tryin to help a dude get his ride working
__________________ The only difference between genius and stupidity is that genius has its limits - Albert Einstein
Maybe, but it sounds like you're saying "buy Jon's injectors first, then continue troubleshooting if it doesn't fix it".
If injectors are really suspected then that's a fairly simple test of pulling the rail and turning over the engine to see if fuel comes out.
The rail would have to be pulled for an injector swap anyway.
I havent checked if fuel was coming out of the injectors. Thanks for the tip. I guess before I place my order, ill pull the rails and crank her a few times.
Thanks!
If there no good, I guess ill go ahead and order some injectors.
Well, I checked all the injectors, there all firing.
But I checked the timing, it was wayy off and now I got it running
Sounds so awesome with the supercharger whine, its running prettty rich though, but it runs and sounds like a monster.
If your running a TPI intake, 37* total timing works great, or 16-17* base timing, try it out and see what you think.
Yeh, it has the stock tpi intake. The timing tab isent stock and only goes up to 8 degrees advance isent stock 6? Ill probably set it at 8 advance, I wouldent want to get any knock when the boost kicks in.
well since you are running a supercharger start with 6-8, then try running a little more, how much boosy are you running? Because for every lb of boost, you should retard the timing usually 2*, some run 1 though.
Yeh, more timing it wouldent idle unless you held the gas down with your foot. I think the balancer or timing tab might be off though. I have a digital timing light and it said the timing was at 12 degrees and the tab says its at 4...... so ionno, lol.
isent stock 6? Ill probably set it at 8 advance, I wouldent want to get any knock when the boost kicks in. 
88 Firebird Formula 350- 85,XXX miles *G92* *Ws6*
