89 TGP turbo swap ?

[ClonedGTZ]

im sure there is a post on this but i couldnt fine anything. what parts do i need to pull this off ?

[90GTZHO]

MAP sensor, injectors, front and rear exhaust manifolds, upper intake manifold, crossover pipe, downpipe, computer (maybe just the chip?) and any of the intercooler/charge pipes, unless your gonna make your owne custom setup. Oh, and of course, the turbo. If you have full access to the motor, oil pan, and the coolant and oil lines that go to the turbo.

That should be about it. Everything else is pretty much the same. If you get really ambitious, i would grab the cam from the donor too as its different as well. I have heard people using the NA cam with the turbo setup, but, the turbo cam will optimize the power increase.

[ClonedGTZ]

ok cool. how is the upper intake diff then the na 3.1 ? im prob gonna upgrade the turbo and do a bigger/better intercooler.

[90GTZHO]

It has the vacuum ports in a couple different locations and it has the cool "3.1 MPFI Intercooled" on the top. It doesnt flow any more than the N/A from what i have read, but does have the vacuum ports in different locations.

[beretta]

i bought a complete engine. but still havent picked it up yet lol, i hope soon i really want to build this to put in my beretta, should be pretty slow.

Im getting the ecm with top gun tuned chip, not sure if the ecm will plug into my existing harness or not but im getting the wire harness too. its from a 89 or 90 tgp.

With mine im getting the complete engine, wire harness, ecm with chip, down pipe, charge pipes, intercooler and said he has other stuff i may or may not need he will include.

my engine.


here is the top intake manifold. i dont think any vacum is different, there is a small vac line on the bottom side is maybe dif i dont know, most vac runs off the throttle body. it how ever has a sensor in the end of it for A/F i do believe.

[ClonedGTZ]

i just care for the intercooled turbo part . im gonna search ebay and see if i finda anything.

i think certain Olds cutlass' had the tubo motor too , maybe ill have better luck getting one of those as a parts car

[beretta]

that would be a buick regal ?and think it was a 3.8 turbo, they are rear wheel drive. the ONLY engine the 3.1 L turbo came in is 89/90 tgp and only 7000 of the engines were made. there is a few around and some parts.

You can use a ebay turbo but you still need the rear manifold since ours has a down pipe and we need one thats solid into the x-over pipe where the turbo will sit. i guess you could weld a flange onto the existing x-over pipe and block off the exit on the rear manifold if you want to custom something up.

Theres a beretta on youtube the guy custom made all the exhaust and turbo setup. if you had a pipe bender would be easy to do, myself i want the stock look of this engine in my car, i think with the rarity of the engine and rarity of the beretta it will make a super rare car.

Have seen a few beretta's online with the turbo setup but most are custom and not stock looking.

good luck getting a turbo buick for parts. those cars go for 2-5 k in bad shape, rare.

But the 3.1 L your looking for like our engines, ONLY was produced and manufactured in a 1989/1990 grand prix tgp 2 years only and something like 3450 each year with that engine.

[88gtz]

The computer is different but the memcals are the same, I have a complete rebuilt 3.1 turbo motor that I'm going to put in my 89 gtu sometime lol... I got the motor trans and everything for 400 because the car was going to the scrap and it only had 67k.

[ClonedGTZ]

the Buick regals never came turboed, the came S/C'ed. the 89 and 90 Regals had the 2.8's then in 91 they went to the 3.8's. i know thoes cars well cuz i had a 91 Regal custom.


damn horders of the TGP motors !

[beretta]

the Buick regals never came turboed, the came S/C'ed. the 89 and 90 Regals had the 2.8's then in 91 they went to the 3.8's. i know thoes cars well cuz i had a 91 Regal custom.


damn horders of the TGP motors !

Grand National is what im thinking of my bad.

The 3.1 L like our engine front wheel drive the turbo edition was only in the grand prix i am pretty 100% positive on that

[beretta]

LG5

The LG5 ("V-code") was a special 3.1 L turbocharged engine produced with McLaren for just two years, 1989 and 1990. It featured the same multi-port fuel injection intake manifolds and throttle body as the LH0, but cranked out 205 hp (153 kW) at 5200 rpm and 225 lb·ft (305 N·m) of torque at 2100 rpm. Approximately 3,700 engines were produced each year. This engine had a block with more nickel content and hardened internals.

This engine is notable, along with other GM turbo engines of the era (such as that found in the Typhoon/Syclone), for the ease with which significant performance gains can be realized with relatively pedestrian modifications.

Applications:

* 1989–1990 Pontiac Grand Prix Turbo
* 1990 Pontiac Grand Prix Turbo STE

>......................................................................
The 3.1 L 60° V6 was used in the following vehicles:

* 1994–2005 Buick Century
* 1989–1996 Buick Regal
* 1994–1998 Buick Skylark
* 1990–1996 Chevrolet Beretta
* 1990–1992 Chevrolet Camaro
* 1990–1994 Chevrolet Cavalier
* 1990 Chevrolet Celebrity
* 1990–1996 Chevrolet Corsica
* 1990–1995 Chevrolet Lumina APV
* 1991-1992 Isuzu Rodeo
* 1994–1998 Oldsmobile Achieva
* 1989–1997 Oldsmobile Cutlass Supreme
* 1994–1996 Oldsmobile Cutlass Ciera
* 1990–1995 Oldsmobile Silhouette
* 1988–1991 Pontiac 6000 (STE & LE, but primarily for STE)
* 1990–1992 Pontiac Firebird
* 1994–1998 Pontiac Grand Am
* 1989–2003 Pontiac Grand Prix
* 1991–1994 Pontiac Sunbird
* 1990–1995 Pontiac Trans Sport
........................................................

But the STOCK TURBO 3.1 L was only put into Grand Prix 89/90 no other cars got that engine, so if you have had one with it then someone has put it in there. aprox 3700 each year made so aprox 7400 EVER. the guy im getting mine from has a grand prix as a DD, he had a parts car and kept the engine, i think he may have other parts as well im not sure, last i talked to him i think he said he didnt have any full turbo setups but did have some parts.

[ClonedGTZ]

i saw that the 91 olds cutlass supreme was turboed

[beretta]

well after a couple minutes of searching google, i found a couple olds cutlass with a turbo engine, but it was put in was not stock, according to this page, it was only put in 89/90 TGP. http://en.wikipedia.org/wiki/GM_60-Degree_V6_engine

I have done tons of research on this engine, thats why i chose to find one. was either that or a 3400 and turbo that, but everyone has a 3400 i could go to any junk yard and get one, i could buy alot of different cars/vans with that engine that has a shot body or needs work for under 500 bucks for parts. they are everywhere. i know i would have more power for the same cost to rebuild the 3.1 and turbo it. but its the fact of the rarity of it thats why i want it.

Probably in the next 3 weeks i will be able to go pick it up guy has been holding it for me since last fall. then i will have a chance to strip it and see what i need to get, he said it rolls over but is stiff. could just been sitting a while. i plan to rebuild it anyways, i just hope nothing internal is broken, i would like to use the turbo block to build depending on the condition, apparently they have more nickel content as well like the old 010 350 blocks. i assume it would have forged pistons and crank and the cam is different, if the block is worse then i suspect then ill use the internals and put in my engine or go grab another 3.1 from the JY that i can strip for the block and still drive my car in the mean time.

I know nothing about turbo's so i will need to find some info on building the engine, i want to run a larger ebay turbo since the t25 with it needs rebuilt anyways. i talked to a couple people who do tuning but they wont touch my ECM type, only obd1.5/2 cars. . im getting the ecm and a top gun chip whatever that is.. a tuned chip from some company i assume, im wondering if it will be SAFE to run with larger turbo and that chip without having to take it to someone to tune it.

I wanted to build this to run like 25 PSI. the number sounds good to me lol, and sounds like alot compared to a stock engine @ 6 psi. im sure there is tons of room to make more power just by more boost. but i dont really need that kind of power it would have sounded better to say i have 350 HP rather then 200. but i have been thinking alot about it and even if i can run 6-10psi its going to push 250 HP and thats 110 more over stock N/A i think it would be insane fast. it already pulls hard. the other day 1 of those new chargers was in front of me and pulled out to pass a slow ass car, and it was uphill and i wanted to see if i could stay with them down to 4th gear and stepped on it and i stayed right with them passing this car, i cant say they were hammering on it hard or easy but i stayed with them i know that. maybe it was a v6 and prob auto, it has RT emblems whatever that means lol.

But for a cheap 150 $ turbo, full gasket set, new bearings and rings, hopefully the engine does not need bored and the pistons are in good shape and i can re use them, it will already cost enough to build and right now i want to do it cheap as possible so to get 350-400 hp obviously i need more cash, 200-250 is plenty i think and will be a ton of fun to drive. i just want a turbo so i can put a nice blow off on it and hear it whoosh when i let off LOL that sound is so sweeet lol

[ClonedGTZ]

i was thinking about one thing that might cause a prob. the PG's had the motor to rad support mounts and the retta dont, which will get in the way of where the turbo would sit.

[88gtz]

I found that out you need a 5 speed or the newer auto for it to work I think, I'm only going to run 10psi on mine and keep it fun and reliable