MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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74ls1tr6
Calvin Grannis
Elk Grove,CA
(1151 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

authors avatar
Looks like Keith Tanner got his Ls1 MGB GT going
Posted by: 74ls1tr6
Date: November 08, 2010 04:10PM

Here is his youtube video!

[www.youtube.com]

His build is here on ls1tech.com!

[www.ls1tech.com]



Edited 2 time(s). Last edit at 11/08/2010 04:14PM by 74ls1tr6.


rficalora
Rob Ficalora
Willis, TX
(2764 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: Looks like Keith Tanner got his Ls1 MGB GT going
Posted by: rficalora
Date: November 08, 2010 06:36PM

Very cool.


Keith
Keith Tanner
Grand Junction, Colorado
(92 posts)

Registered:
10/31/2008 01:45AM

Main British Car:
For the purpose of this forum, 1972 MGB GT 5.7l Chevrolet LS1

authors avatar
Re: Looks like Keith Tanner got his Ls1 MGB GT going
Posted by: Keith
Date: November 27, 2010 01:33AM

After that first drive in the video, the car went back into the garage for a week or two as I worked out a few things. It reappeared today with a complete interior, a few functioning gauges, a new cooling system and a few other updates.

http://www.slowcarfast.com/MG/images_lrg/img_6961.jpg

http://www.slowcarfast.com/MG/images_lrg/img_6955.jpg

http://www.slowcarfast.com/MG/images_lrg/img_6979.jpg

The next big step is the Rabbit fender flares. I haven't done any real bodywork before so that will be a long process. Since the car's going to be painted a deep, non-metallic black I'm going to have to get it nice and smooth. It's also going to be a challenge getting them wide enough, as they're going to have to sit higher on the fenders than most people's cars because of the wide track. The fenders have been cut out already because the track width requires it - it's not a good look for the car right now although it does look like a racer. Maybe I'll just put some big roundels on the doors until it's time to paint :)

First, however, comes the debugging. I figure the ride height will probably change and I want to get that nailed before the flares go on.

Performance is "spirited". I don't know the exact horsepower range of the engine because of the new intake and exhaust as well as some light internal modifications, but it'll be between 350 and 400 at the crank. The car currently weighs right around 2200 lbs. Power oversteer has proven to be well within reach.


mgbrv8
David Hetrick
McAllen Texas
(78 posts)

Registered:
03/09/2008 12:49PM

Main British Car:
MGBs- 1977,1969 Vettes-1965,1984,2003 ZO6 LS1s in MGs

authors avatar
Re: Looks like Keith Tanner got his Ls1 MGB GT going
Posted by: mgbrv8
Date: November 27, 2010 10:10AM

Hi Keith

I was wondering what mods you had to do to fit the t56.

Dave


Keith
Keith Tanner
Grand Junction, Colorado
(92 posts)

Registered:
10/31/2008 01:45AM

Main British Car:
For the purpose of this forum, 1972 MGB GT 5.7l Chevrolet LS1

authors avatar
Re: Looks like Keith Tanner got his Ls1 MGB GT going
Posted by: Keith
Date: November 27, 2010 01:44PM

Not as much as you'd think. There's a big dent on the passenger's footwell (on a LHD car) that had to be echoed on the driver's side - seen here. It's funny, the MG doesn't use this space at all - the throttle pedal bottoms out before it gets there. I did need more throttle travel for the LS motor so I ended up reshaping the pedal a bit - now it's almost a two-step throttle, one down to the transmission divot and then a second step for the remaining serious power. Kinda like overcoming the springs for the secondaries on a carb.

http://www.slowcarfast.com/MG/images_lrg/img_1272.jpg
http://www.slowcarfast.com/MG/images_lrg/img_6067.jpg

I also added an access hole in the side of the tunnel so I could fit the reverse lock-out solenoid. It would have been possible to avoid this hole if the solenoid had been deleted, but I've driven T56s with other lockout setups and I like the speed-activated lockout the best.
http://www.slowcarfast.com/MG/images_lrg/img_6848.jpg


The shift lever hole had to be opened up a bit to fit the Hurst shifter through, I don't know if that would be necessary with a GM shifter. But the lever ends up in the stock location and is perfectly placed. I didn't even have to modify the carpet on the transmission tunnel, although the stock MG boot won't fit over the shape of the T56 shifter I'm using so the GM part is just stuffed in place right now.
http://www.slowcarfast.com/MG/images_lrg/img_6960.jpg



Edited 1 time(s). Last edit at 11/28/2010 01:35AM by Keith.


jim0899
James Willenbrink
Florence, KY
(60 posts)

Registered:
10/05/2010 04:46PM

Main British Car:
1978 MGB Chevrolet 327

authors avatar
Re: Looks like Keith Tanner got his Ls1 MGB GT going
Posted by: jim0899
Date: November 30, 2010 07:28PM

This is a fun build to watch, sure would like to see the car at Townsend, Tennessee this Spring.

Jim


Keith
Keith Tanner
Grand Junction, Colorado
(92 posts)

Registered:
10/31/2008 01:45AM

Main British Car:
For the purpose of this forum, 1972 MGB GT 5.7l Chevrolet LS1

authors avatar
Re: Looks like Keith Tanner got his Ls1 MGB GT going
Posted by: Keith
Date: December 02, 2010 08:32PM

Sorry Jim, I don't think that's liable to happen. That's about 1600 miles from here and I already have a couple of other major road trips booked next year. If it was closer, sure.

Anyhow, I made some progress on the body. I'll post a new thread about this because I know there's always interest in different flares, but the rears are done.
http://www.slowcarfast.com/MG/images_lrg/img_7034.jpg



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