A little Stage II history

[buickGTP]

I thought some of you might be interested where some of the stage II motors
other than drag racing might be found.

1. IMSA GTP 3.0 to 3.4 liter turbo charged on gasoline road race motor
cosworth water and oil pumps Kisler fuel inj. Built mainly by McClaren
in Mich. app 30 made
A few 4.5 liter F.I. motors were also made

2. IMSA GTP Lights 3.0 liter normally aspperated (sp?) built by various
engine builders Lozano brothers up to 8 cars running these Buicks.

3. IMSA GTO 4.5 liter F.I. and 3.0 Turbo buick somerset and Olds
equivalent

4. SCCA Trans Am 4.5 ltr (272 ci) Buick Regals F.I. motors

5. INDY LIGHTS 4.2 Ltr.F.I. at least 30 cars available all motors
built and maitained by Ohio George approx 100

6. Indy/USAC 3.4 liter turbo on Alky cosworth pumps. Early motors
built by McClaren latter engines built by Bratten engineering

Note Most of the motor listed except for the 1990's Indy and Indy light
motors were off-center and tall deck types

 

[mhogan6]

Stage II History

Thanks, very interesting.
Anything about Indy 500 history; i.e. Roberto Guerrero doing 260 mph in a Buick V6, for track record? I'd like to hear about that kind of stuff. Or any Indy Buick stories. What's the track record now? etc.


Mike.

 

[buickGTP]

indy buicks

During the 1980's march cars built most of the chassis for the
buick indys inthe 1990's Lola built the chassis If you go to
marchives.com then to album and browes thru the 80's you
will find some indy Buicks also some info on the 34 cars built for the
early indy light series. I think there is also a Lola web site that
would get you info on Guerero's sp? records at indy.
Good luch
Steve rowan

 

[Mike Licht]

I have one of the 3.4 blocks. It is 14 bolt and came with a FACTORY girdle
Mike

 

[Alky V6]

Didn't they need that girdle because they were mounting the engine by the oil pan area? I heard that a lot of cracking occured around the pan rail area because of the pan style mounting. Is this true?

 

[Mike Licht]

Well Donnie, to be honest I don't know. I bought this many years ago at a swap meet because I thought it was interesting and I had never seen a Buick girdle before. (This was before Eastern Performance started making them) I was told at the time it was made for IMSA but this one was used at Bonneville, who knows? FOr me it was preserving a little Buick History. When I said 14 bolt I meant the pan rail, it has 8 head bolts.
Mike

 

[Alky V6]

Well Donnie, to be honest I don't know. I bought this many years ago at a swap meet because I thought it was interesting and I had never seen a Buick girdle before. (This was before Eastern Performance started making them) I was told at the time it was made for IMSA but this one was used at Bonneville, who knows? FOr me it was preserving a little Buick History. When I said 14 bolt I meant the pan rail, it has 8 head bolts.
Mike

Only 8. Interesting. Post some pics, if you get a chance.

 

[buickGTP]

The mid engined IMSA GTP cars used a McClaren aluminium oil pan and
cast magnesium front cover. The cover was attached to a engine plate
the engine and trans axle were stressed members. I will attempt to
attach some pictures.
steve

 

[TurboDave]

I thought some of you might be interested where some of the stage II motors
other than drag racing might be found.

1. IMSA GTP 3.0 to 3.4 liter turbo charged on gasoline road race motor
cosworth water and oil pumps Kisler fuel inj. Built mainly by McClaren
in Mich. app 30 made
A few 4.5 liter F.I. motors were also made

2. IMSA GTP Lights 3.0 liter normally aspperated (sp?) built by various
engine builders Lozano brothers up to 8 cars running these Buicks.

3. IMSA GTO 4.5 liter F.I. and 3.0 Turbo buick somerset and Olds
equivalent

4. SCCA Trans Am 4.5 ltr (272 ci) Buick Regals F.I. motors

5. INDY LIGHTS 4.2 Ltr.F.I. at least 30 cars available all motors
built and maitained by Ohio George approx 100

6. Indy/USAC 3.4 liter turbo on Alky cosworth pumps. Early motors
built by McClaren latter engines built by Bratten engineering

Note Most of the motor listed except for the 1990's Indy and Indy light
motors were off-center and tall deck types

7. (unknown usage plans) 3.8 and 4.0 all aluminum SII blocks (on center, tall deck) designed by Brayton Engineering, cast by M&A. Used to have one of each :biggrin:

I'll post pix when I get back off this road trip.

 

[Alky V6]

There's those dang tuned exhaust on a single turbo engine again. Do those really work?

BIG turbo! I want one.

Nice pics. I'm eating it up.

What size engine is that one (in the car)?

 

[buickGTP]

The motor in the car is 3.0 liter 3.8" X 2.66" The motor was BMS (sebring)
unit. The headers provide good throttle responce for road racing and
since the car weights 1900 lbs the acceleration is quite hairy.the turbo
is a garrett 52x ?? the other motor is a vigin 3.4 ltr never fired.The 3.0
does 750hp at 14.5 lbs
Steve

 

[ijames]

Is it just me, or is that cam sensor on the wrong side on the engine on the stand? Why would they do that? They didn't rotate the engine backwards, did they?

Love the pics and info - thanks.

 

[buickGTP]

Carl
I really do not know Both motors have it on the left side as you
face the front of the motor The motor has a gear drive and I
will rotate the engine clockwise and I assume the Cam sensor
should also rotate clockwise.???
Thanks
Steve

 

[Alky V6]

Steve, what is the redline on the 3.0L? Post as many pics as you want. Beautiful stuff.

 

[1dmbth]

This really neat! Please post more. I like learning new things.

 

[buickGTP]

It is my wifes b-day and i am headed out the door will post more
in the am
thks

 

[speeder]

Good stuff! As a roadrace freak, I say, "More, please."

 

[buickGTP]

Donnie
I rev it to 8600 to 8900 rpm and it is still pulling
I will attach a few more pictures

 

[Mac in SD]

Where's the A/C?

Really, really cool. Mazeltov.

 

[turbodave231]

The front cover on your engine looks very similar to the one used on Indy Lights engines.

I've spent some time at Ohio George's shop and He loves to talk about these engines. He told me that Buick insisted that the oil pump and water pumps were all done by Cosworth. He also said the pistons were also Cosworth.

When was your car built? What do you know about the accessories on your engine? I wonder if the GTP development helped the Indy Lights engines or vice versa.

Buick insisted on the Best parts for their Indy Light engines because they wanted them bulletproof. George insisted that these engines would run all day and all night at nearly 600 HP and 8500 RPM.