Idea for Turbo...

Idea for Turbo...
This is kind of an involved question. This is for a budget build. It is for my '97 Firebird.

1. What are the differences between the 3800 II Supercharged engine and a RWD Fbody 3800 II? (Internal components and structure)

2. How much boost can a stock GTP motor handle?

3. Theoretically could I use a turbo in place of the M90 if I port match my Fbody intake to the L67 heads?

4. Has anyone ever done a Pacesetter header to custom y-pipe turbo install?

Here is my idea. I have found a few running Supercharged L67s for a reasonable price. I understand that the L67 has a beefier bottom end and lower compression heads. I don't know that I want to go the exact route that Merlin did on his Camaro. Instead, I want to know if I can mix and match a turbo kit with an L67 rig?

What do you think?

[Virtue]

my buddy has a gtp and he said the heads have the ports for the injectors so you might have to plug the holes on the f-body intake if it bolts to those heads even.

as for how much boot it can handle i know alot of those guys run smaller pulleys but a certain psi cant be said cause at 8psi a smaller turbo can flow x amount of air vs a bigger turbo at the same psi, but the big one flowing more air ,ya dig ?

[lozanoa11]

Check out fullthrottlev6.com they will have all the info you need. I know alot of gtp guys dump the supercharger in favor for a turbo

[phoenix_rising]

my buddy has a gtp and he said the heads have the ports for the injectors so you might have to plug the holes on the f-body intake if it bolts to those heads even.

as for how much boot it can handle i know alot of those guys run smaller pulleys but a certain psi cant be said cause at 8psi a smaller turbo can flow x amount of air vs a bigger turbo at the same psi, but the big one flowing more air ,ya dig ?

So let me rephrase this so I understand, are you saying that it all depends on the size of the turbo? Or that different turbos will push different amounts of air?

Is it possible to keep the GTP injectors? If so would I have to swap computer and wiring harness too?

I found a complete L67 with all accessories for a reasonable price supercharger and all.

[Virtue]

So let me rephrase this so I understand, are you saying that it all depends on the size of the turbo? Or that different turbos will push different amounts of air?

Is it possible to keep the GTP injectors? If so would I have to swap computer and wiring harness too?

I found a complete L67 with all accessories for a reasonable price supercharger and all.

the injectors should be around 36lbers depending on the year i know my buddys are 36 his is a 98. they are your standard injector you'd just have to change your tune for the larger injectors no need to swap the computer.

i guess the question now would be would the fbody intake manifold bolt to the gtp heads, if not ditch the heads if the compression difference isnt that big of a diff, ill have to ask my buddy if they have dished pistons or not.

im sure you could sell that super charger and stuff you dont need to make most of your money back

[phoenix_rising]

Could I use the stock L36 heads and my ported ZZP upper and lower intake with the L67 bottom end and injectors? Also, what are my options for a low cost transmission upgrade? Would a 700RV off an LT1 be sufficient and will it bolt up to a 3.8L II?

[Virtue]

Could I use the stock L36 heads and my ported ZZP upper and lower intake with the L67 bottom end and injectors? Also, what are my options for a low cost transmission upgrade? Would a 700RV off an LT1 be sufficient and will it bolt up to a 3.8L II?

i dont see why you couldnt use those heads and the zzp on the l67 bottom end since my buddy was telling me the only diff is suppose to be the guts

lt1's i thought used 4l60e's

[phoenix_rising]

I think the 700R4 and 4l60E are synonomous for the same thing aren't they?

Even though, can I bolt up a V8 trans to a V6? I know a V6 can bolt up to a V8 but it would never last.

BTW

here is the donor I am looking at...


here is the intercooler I am buying... 2X 2.5" in 1x 3" out

[Virtue]

I think the 700R4 and 4l60E are synonomous for the same thing aren't they?

Even though, can I bolt up a V8 trans to a V6? I know a V6 can bolt up to a V8 but it would never last.

BTW

here is the donor I am looking at...


here is the intercooler I am buying... 2X 2.5" in 1x 3" out

i believe the 4l60e is electronic and the 700 is not but ive heard they are almost the same but im no auto expert as well as a v6 expert so i dont know if the bellhousings are the same

[Kwazrollinz28]

92-93 LT1 350/ 700R4
94-96 LT1 350/ 4L60e
97-02 LS1 350/ 4L60e

I think i have that right, Also 92 was the Vettes just to clear that up

My buddy said something about His GTP motor wouldn't bolt up to his 3800 camaro trans, But I'm not sure about a 3800Fbody motor on a V8 Trans it should Work. doesn't look any different. but you should give it a good look.

[lozanoa11]

The 4l60e is a electronic version of the 700r4/ Gm changed the way they named transmissions and the 700r4 turned into the 4l60 then the 4l60e when it was made electronic. It should bolt up but im not positive.

[PACE]

On the 3800's the bell houseing are differant from a v8.. only other thing is different internally is the rods and pistons, they both use the same crank. & the pistons are dished..

[Superman09]

ugh, sounds like a whole lot of work and headaches to me!

[DETROITMUSCLE]

sounds like someone needs to do some more research or talk to one of the sponsors first, remember THERE IS NO SUCH THING AS A BUDGET TURBO BUILD!

[93formulalt1]

Ben, like I've told you in the many conversations I've had with you about this, you need to pick something and stick with it. You bounce between ideas too much, and you have some good ones, some bad ones, some crazy ones, but you never act on them. Pick what you want to do. You've talked to me about V8 swaps, V6 swaps, forced induction, nitrous, everything, yet you can't seem to make up your mind.

Let me put it this way: Don't test the limits of an engine if you can't afford to replace it. I know you, and you have been without your Firebird for a year already, you would be devastated to not be able to drive it again for several months. I think you should install the parts you've stockpiled already, you've got enough in storage to surprise some stock LT1's, I'd wager, you just need to give it a shot and see how you like it. Plus, I think the better idea here would be to upgrade your brakes for more stopping power before you decide to make it faster. There are plenty of characteristics that need to be focused on to make a great all-around car, and you are only focusing on one.

You were talking about getting involved in AutoX events, why don't you look into some suspension upgrades? How about a torque converter upgrade? You haven't driven your car in so long, I think you'll be plenty happy with it if you make it a full bolt-on car and drive it. You haven't modded it at all since buying it, I think you should seriously give it a chance before you start talking about swapping motors and everything.

Plus, like it's been mentioned, there is no cheap way to go forced induction. A turbo is going to cost several hundred dollars, you're going to need a shop that can get your piping all set up, an intercooler setup like the one you were talking about Tuesday is going to cost more than a few hundred installed, you need a BOV, a tune (which can be VERY expensive), and various other things I don't want to elaborate on right now.

Seriously, use what you've got for now, you'll be impressed. When/if you decide you want/need more, we can figure something out. I thing with what you've got, plus some 3.73's, a 3200 converter, and a 75 shot of nitrous, you'll have your hands full for a while. . . Heck, you haven't even bought a new stereo yet!