building an intake manifold, input needed

[treeZ24]

hurry up! man you think welding is going to take minutes?! :P

i guess i'll be getting a call from you soon then eh lol

[sharkey]

depends on when i get a flange cut out.

[sharkey]

looks like this is on hold again. i ran into a very big problem, it apears i wont be able to put oil in the motor as the oil fill cap ends up right under one runner. if i stand the runners up a little more to clear the oil filler cap, im going to run out of hood clearance unles the runners are shortened so the total length would be around 12", way to short.

mabey its time i start collecting 3500 peices.....

[ForcedFirebird]

looks like this is on hold again. i ran into a very big problem, it apears i wont be able to put oil in the motor as the oil fill cap ends up right under one runner. if i stand the runners up a little more to clear the oil filler cap, im going to run out of hood clearance unles the runners are shortened so the total length would be around 12", way to short.

mabey its time i start collecting 3500 peices.....

3400 top would be a better option if you are keeping the stock bore.

EDIT: NM, you already asked about the 3500 heads on a 2.8 bore.

[Superdave]

mabey its time i start collecting 3500 peices.....

It's worth it..


lets just say, i'm running #32 injectors at 92% duty cycle to get enough fuel in PE mode.. That top end flows insanely well..

[ForcedFirebird]

It's worth it..


lets just say, i'm running #32 injectors at 92% duty cycle to get enough fuel in PE mode.. That top end flows insanely well..

I'm getting goose bumps

[Superdave]

I'm getting goose bumps

I'm upping the fuel pressure today to 55 PSI which takes the injectors up to 36#/hr.. hopefully that's enough to get me back under 80%.

[ForcedFirebird]

I'm upping the fuel pressure today to 55 PSI which takes the injectors up to 36#/hr.. hopefully that's enough to get me back under 80%.

The displacement is smaller on my engine, but my mods should really wake up. This way I can prove to the 90* V6 f-bods that .4 more liters isn't going to make up for the fact that we have it better at 60*!

[IsaacHayes]

Sharkey, I say build up a nice 3400 long block, with 3500 parts if you wish, cam it, run DIS, and sell your complete 2.8. I'm sure someone would like it for their circle track car or whatever.

You headers will still fit. Then you can be running somewhere in the low 14's high 13's hopefully. Trying to get stuff to mate up to the 2.8 will probably be a PITA.

[ForcedFirebird]

Trying to get stuff to mate up to the 2.8 will probably be a PITA.

Why? If he took the timing cover and accy brackets from a 3x00, that wouldn't work?

Sharkey, which steering pump do you have? That might need to be change to a 3x00 as well.

[IsaacHayes]

Well the way I view it, custom pushrods, swaping covers, etc would bother me more than getting a custom motor mount, and just dropping in the 3400. He will still need the 3x00 style pump and coolant fittings if he keeps the 2.8 and goes to gen3 top end. Might as well just go to larger displacement and have the newer platform to build off of. _shrug_

[ForcedFirebird]

Well the way I view it, custom pushrods, swaping covers, etc would bother me more than getting a custom motor mount, and just dropping in the 3400. He will still need the 3x00 style pump and coolant fittings if he keeps the 2.8 and goes to gen3 top end. Might as well just go to larger displacement and have the newer platform to build off of. _shrug_

Yeah, but I see the sentimental value of him building a motor he doesn't want to let go of. You will never get back what you put into it by selling it, especially when you dish out the cash for forged pistons.

I don't know that his swap would be any harder than mine, my problem is having 4 kids, cash and time is a commodity here my builds could go a lot faster if we had about 6 more hours in a day!

[sharkey]

its not a case of time or money, its the case of 2 years ago i put $5g into a motor, much of that into a bullet proof short block, and essentially getting nothing out of it. swapping a set of heads out isnt a huge deal. sure i have a ton of hours into porting, but i can sell those off.

selling the whole motor off is unlikly cause first off nobody is willing to pay anything for a 2.8 around here, and the only other car its a drop in is a fiero, and around here most fiero guys do v8 swaps. i dunno, mabey one day ill build up a 3500 (or a 3900), but i cant see that happening for a few years. ill stick with what ive got and continue to attempt to extract power from it

on another note, i figured out my oil cap clearance problem and brad (treez24) got the middle mostly welded up today. pics to follow

[1988GTU]

If you dont mind swapping heads... Couldn't you swap 3x00 heads on it and inject some n2o? maybe not be a 3500 or full 3x00 swap, but it will be fast.

[IsaacHayes]

Then go for 3400 heads and LIM, and 3500 plenum. Then you need to add a lot of boost as your built bottom end isn't being taxed being N/A ya know.