pairtoe

iTrader: (4)

haha to big, just kiddin you can never go to big. but its the same thing as a comp cams 260, with 1.6 ration rockers and new push rods and fully ported heads, so its taking in a lot more air than before. also its got new 19lbs fuel injectors. but it idles i just got to keep givving it gas or it will stall out. and also i can hold the gas steady adn it will still sometimes rev up oon its own, i think there is a vaccum leak but i dunno yet.

AM91Camaro_RS

oh ok, cool. did you upgrade the injectors just because of the n2o?

pairtoe

iTrader: (4)

yeah pretty much, ive got a walbro 255l fuel pump(not in yet) and the bigger injectors will help feed the beast. also so i dont run to lean with the nitrous.

firstfirebird

iTrader: (3)

You might have too much fuel going in at idle, do you have an AFPR? With 24# injectors (and reading the crappy 1.5" guage I got) I'm running at a measly 24-28psi of fuel at idle.

And yes with that cam you will need to "warm it up" a little .

AM91Camaro_RS

yeah, i didn't even think about that. those injectors are probably hurting you idle unless the computer is tuned for them. reason i asked about why you switched to them is because I'm running a much bigger cam and still runing stock injectors and still run rich, even at 6k rpms. But, I'm not spraying...

daves12secV6

iTrader: (3)

19's should be fine its only 2#'s more then stock i posted up some wideband logs a while back of a 3.1 idling and running with 19 and 24# injectors a while back the 19's were only slightly rich

AM91Camaro_RS

17s are stock in a 3.4...3.1s have 15s, right?

daves12secV6

iTrader: (3)

opps i may be worng 3.1 may have 15#'ers as well, i could have sworn it was 17's though

AM91Camaro_RS

i've always heard 15s. I've never tested them for myself or anything, though

daves12secV6

iTrader: (3)

hey pairtoe how far away are u from hacketstown new jersey ????

firstfirebird

iTrader: (3)

Many times I have thought: "If Dave and I only lived closer...."

daves12secV6

iTrader: (3)

lmao, well island dragway is up in hacketstown, bout an hour drive for me, i figured if he wasnt far away i could get hom to go there and meet up with him for some drag racing

firstfirebird

iTrader: (3)

I was thinking business opporunities...

Once I get a TIG and a mill, I'll be in better shape .


I'll post some times soon (I'm hoping for one more pass this season), got the rotating assy .

pairtoe

iTrader: (4)

about 4 hours, but if you want to race me i'll be there. let me know when and i'll get it off work i love a little road trip.

as for the injectors its 15lbs stock. and im getting abou 43.5 fuel psi with my guage on the fuel rail.

i got a new digital timming light and im gonna get thatt set tommorw and put on the y pipe and plug in the 02 sensor and see if that helps.

pairtoe

iTrader: (4)

so you got a running engine now i take it?

firstfirebird

iTrader: (3)

Not yet, crank, rods and pistons will be here in about a week. I won't be able to work on it till 2 weeks from Sat (hurricane Wilma damage needs to be finished here at my house).

daves12secV6

iTrader: (3)

dude thats why the car wont run, get that y pipe on and o2 hooked up, also u need to disconect the battery for 30 seconds before trying to restart it to reset the blm's

pairtoe

iTrader: (4)

i know i felt like an idiot, after abou an hour of messing with it i went in my bass ment and my old exhaust was sitting there and i was like "**** thats why". but it runs almost perfect now, so it can only get better.

pairtoe

iTrader: (4)

S H I T !!!!! my oil is white. it stopped leaking on the out side and now it must be leaking on the inside again. time to rip into it agian.


what is causing me two go through two head gaskets so fast??? i know how to put them on and im putting them on the right way. but i have a feeling it might just be the intake gasket got messed up again. but im just gonna change them all.

Blue1989RS

Hope you don't have a crack somewhere internally that you can't see. If you have a radiator pressure checker I would pump it up and really scan through the engine. No use working on a bad block. Also check the timing chain cover. If there is a crack there or if the bolts aren't tight t would leak straight down into the oil pan.


my understanding of injectors were:
2.8's and 3.1's came with 15lb/hr pintle injectors
3.4's and 3100's+ came with 17lb/hr disk

easy way to tell them apart is that the 15's have a small little point on the tip while the 17's have 6 small holes.

pairtoe

iTrader: (4)

well i stripped it down to the block. so its to late for any pressure testing. i think i found the problem any ways the intake gasket i dont think was sealled good one the number 1 piston, and the head gasket had a hole in the number 6 cylinder and went from the ring all the way to the water holes. hopefully that was my problems.

Blue1989RS

are you torquing this down in the right order and to the right tightness?

You may want to spray glue the intake manifold to the heads too.

pairtoe

iTrader: (4)

yeah im torquing it right suqeunce and to 70lbs. and im gonna use some spray glue this time. i didnt last time.

1988CamaroSC

iTrader: (2)

your having a hell of a time with that motor arent you? i might have given up by now...

pairtoe

iTrader: (4)

well im very patient, plus its worth the work. and i can strip the whole engine down in just a few hours. it was running this morning now its down to the bare block.

firstfirebird

iTrader: (3)

Bare block my patookie, lol.

You have the heads off (upper end). I have had the upper off, new rockers spec'd back out and back together in an afternoon.

Wuss...
Did you mean tack-spray the gasket to the mani?

1988CamaroSC

iTrader: (2)

wuss huh? wake up on the wrong side of the rock? say it to my face you..... hmmm, kidding. but i just dont have the time and patience to go over all the stuff he, and you probably have. im sure it will be worth it in the end, i want to adventually build my 2.8 but i dont see it happening this year, i want to see how much i can get out of a n/a motor then maybe a 125 shot...hey pairtoe, are you for sure your selling those headers in the near future? im getting kinda restless lol.

firstfirebird

iTrader: (3)

Just breaking your stones, lol...

I haven't given up yet, and I'm in deeper than I ever wanted to go with this car, haha (you can even ask my wife),

pairtoe

iTrader: (4)

well you get the point.

but as for the headers, they arent going any where for a while, once this thing is up and running goodmy welder is gonna start on the exhaust. so maybe a month or so, probally two at the rate im going.

pairtoe

iTrader: (4)

Alright well its back together. so far no oil and water mixxing, no oil leaks and one tiny water leak where its going into the intake, but im on that with my bars. its got the y pip and one dyno max bullet on it, but ive got a pretty nast exhaust leak. i just need to dirve it down to the shop and put it on the lift. and timming is a little off so i will take care of that tomorow. but it wont idle for some reason. if i keep it at 2,500 rpm it just goes up and down on its own. i was trying to break in the cam had it running fro a minutie or so above 2,500 rpm but it wont idle. anyways its raining here and ive got to get up at 2a.m so ill finish her tomorow.

pairtoe

iTrader: (4)

UPDATE:

ok its been a while since ive been on here. well it was up and running for a day. still no test runs but it was running on its own and still is leaking or mixing anything. i set the idle pretty high it idles around 2,200 if im not mistaking. but its real smooth. but what happend this time is from all the cranking trying to get it started over the past month the starter wiggled its self loose and every time i went to start it, it was making a terrible metal scraping noise, so i got under it bolted it up nice and tight. and then put the battery on the charger over night. and went out the next day adn nothing, i think i might have fried the starter from the contious cranks latley. it like it has no ***** at all. so im gonna get a new starter tomorow and put it in. hopfully all is well and im running tomorow.


DAVE: if your reading this, them heads flow awesome man . the car sounds so smooth. all it has for exhaust is the headers and ypipe with a bullet on the end. and the valves are set perfect, timming is awesome. thanks again for your help on those. now i cant wait to hook up the N20 and put down some time slips.

firstfirebird

iTrader: (3)

2200 idle, wow!

pairtoe

iTrader: (4)

haha yeah im gonna adjust that today to. its i just wanted to make sure it would idle on its own. and the mysterious vaccum leak has seemed to gone away. becuase the idle is nice and smooth (take in mind the cam) and doenst jump around.

pairtoe

iTrader: (4)

update:

hmm well i am now at a fork in the road here. i think i might have spun a bearing. and when i tear into the bottom end this weekend and find that i did i need to make a decicion on what to do next.

i can #1 take the 2.8 out of the car tear out the internals and get a new rotating assembly and rebuild it right with forged parts for the nitrous.

or #2 keep it simple and just throw a carbed 350 in it, nothing to wild but it would probally get the nitrous kit.

i just dont want to go down the 3.4 road. so if i keep the 6 its gonna be the 2.8. any opinions? i like being diffrent and i already have a 82 Z28 with a carbed 350, but i also like power and im not sure if its gonna be what i want it to be with the 2.8 and nitrous. just looking for some of you guys ideas on what to do.

firstfirebird

iTrader: (3)

Why not 3.4?

You don't need the whole assy, just get the crank turned, new rod(s) and pistons.

Is it knocking?

daves12secV6

iTrader: (3)

are u sure u didnt wipe a lobe off the cam???????

pairtoe

iTrader: (4)

yeah its knocking and it have zero oil pressure. i cant really tell with out tearing into it but im preparing for the worst. but im just gonna part the motor and keep the shell i think and drop a 350. my plans change ever dya with this car.

Street Lethal

iTrader: (16)

Go with an LT1 bro. Helped my cousin a few months back with his buddy's '89 GTA w/5-Speed, and he loved it. Relatively easy (and cheap) swap....

pairtoe

iTrader: (4)

yeah LT1 was def a possibility, dream motor is an LS1, but i think im just gonna keep it simple and go carbed. a good friend of mine is a retailer for jasper motors so that will prob be my best route.

Street Lethal

iTrader: (16)

How about a carbed LS1....?

pairtoe

iTrader: (4)

hmm carbed LS1... that would be sick.

Street Lethal

iTrader: (16)

Click Here

pairtoe

iTrader: (4)

thats wild. if i had the money for it, that would be in my car.