GreatWhiteZ28

iTrader: (15)

Ok, Car is backtogether with the new cam(in sig) it idles like doo-doo, won't rev over 1k when it gear and wamred up, poor coolent flow, (reads 260 when just help at 500 to stay running, boils coolent from the overflow tank vent tube, poor throttle response in park, nutreal,and slim to non in gear, whatcha guys think? Needs to be tuned?

daniel6718

iTrader: (36)

did you get it tuned?

daniel6718

iTrader: (36)

coolant is bc you didnt bleed it right...it should still idle and not overheat

GreatWhiteZ28

iTrader: (15)

no it hasn't been tuned yet, but getting it there would be nice to do. this thing doesn't move for **** down the street, it cools down to norm when it's up in the RPM's sitting still, was just outside watchin the temp gauge, think it's getting hot cause A) it's like 100* outside, and B) it's not turning hte water pump fast enough to keep the temp down

kennyxg

iTrader: (1)

Remove the thermostat housing and fill it with coolant through there.You may not have enough vaccum because of the cam.Make sure you stabbed the opti cause if you don't the car will pop and backfire.

GreatWhiteZ28

iTrader: (15)

It doesn't pop or backfire, it runs pretty good but I have to give it a lil gas to stay running

Mike96z

iTrader: (78)

probably needs a tune, it should still run fine, im running a 388 without a tune lol, yea its long overdue but if my **** will run, yours will, you sure you got everything hooked up? No codes?

daniel6718

iTrader: (36)

tune is what you need. fix almost all your problems

irbs

iTrader: (7)

Similar set up here with out a tune and its running good except when you really get on it will start to bang out.

Complicated

You might have put the pin that goes from your timing cover to your optispark, one tooth off.
That will cause a bad idle and no rev due to wrong timing.

I have done that before due to the previous owner pounding it in and the damn thing would go in in any slot! I had to get a mirror and make sure that it was in the correct location.

Now I just start the car with just the opti and no fans, radiator, or water pump just to make sure it is correct before I finish putting everything back together.

Mike96z

iTrader: (78)

Thats why the newer opti is better, only one way to put it on, screwup proof lol

GreatWhiteZ28

iTrader: (15)

Mine only goes in one way and one way only, pulled it off twice already to double check everything, I know the rough Idle is tune related, im more worried about it not moving a whole lot, even held at WOT.. but it's getting towed to the GM and Caddy specialist here in town and i'll let them play with it for awhile until it's time to let G-Force Tune it

GreatWhiteZ28

iTrader: (15)

Another question, think I need to upgrade the injectors? or no

1LSWON

iTrader: (8)

Not at all.

BizZzatch350

iTrader: (33)

Actually, for a h/c set up like that you need a 30-36lb injector, factory LT1s on 94+ are only 24lb.

1LSWON

iTrader: (8)

With both my H/C LT1 and H/C LT4 I had no fuel problem at all and had a 150 shot, I had the 97 28lbs injectors on both cars.They also had T-Rex FPs, and FPR, but stock injectors. My H/C LS1 made great power on 28lbs did not upgrade till I put the big motor in it. Not sure if they had different injectors for different years, if so maybe that was your problem.

Thomas

BizZzatch350

iTrader: (33)

97s actually had 24lbs, 93s are the only year with a different injector size

GreatWhiteZ28

iTrader: (15)

Just a Cam-only car. havn't gotten to the heads yet