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John Hamilton
John Hamilton
Navarre, FL
(23 posts)

Registered:
10/28/2009 11:18PM

Main British Car:
1965 MGB 1840 cc MGB

Re: TR 8 Update, Huffaker GT 1
Posted by: John Hamilton
Date: April 14, 2020 02:12PM

I need to build a new engine for my MGB GT V8 road race car. Any advice on pistons, etc? Things to avoid?

Thanks, John


MGBV8
Carl Floyd
Kingsport, TN
(4629 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: TR 8 Update, Huffaker GT 1
Posted by: MGBV8
Date: April 20, 2020 09:28AM

What will your rev limit be, John?

Assuming you are required to use a Rover V8 (maybe Rover 3.5 only) engine, can you only use certain years? Could you use a 4bolt main 4.0 sleeved down to a 3.5 bore?


John Hamilton
John Hamilton
Navarre, FL
(23 posts)

Registered:
10/28/2009 11:18PM

Main British Car:
1965 MGB 1840 cc MGB

Re: TR 8 Update, Huffaker GT 1
Posted by: John Hamilton
Date: April 28, 2020 12:47PM

I'm pretty sure the sleeved down 4.0 would be acceptable. Rev limit 7000. With the previous engine, 10:1 compression, hydraulic cam, I never got it fully sorted. My run group was all the big bore stuff and it was embarrassing how out-gunned I was.
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roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: TR 8 Update, Huffaker GT 1
Posted by: roverman
Date: September 07, 2020 03:25PM

Read your specific rules, very carefully. IF is doesn't say you can't ? Says no 180 cranks ? Roller cams ? Roller rockers ?
You "may" have an advantage, if they're not really savvy on your engine ?
Good Luck, Art.


peterr991
Peter Johnson

(5 posts)

Registered:
05/26/2021 02:34PM

Main British Car:
Re: TR 8 Update, Huffaker GT 1
Posted by: peterr991
Date: May 26, 2021 02:52PM

Any updates on the car?


roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: TR 8 Update, Huffaker GT 1
Posted by: roverman
Date: June 04, 2021 02:29PM

Christian, thanks for that video. My car deserves no less, to be seen and heard.
Art.


tr8
Paul MacDonald
Canada
(40 posts)

Registered:
10/25/2008 04:07PM

Main British Car:
TR8 Coupe Rover 4.0

Re: TR 8 Update, Huffaker GT 1
Posted by: tr8
Date: June 06, 2021 09:33AM

Any progress Art?



roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: TR 8 Update, Huffaker GT 1
Posted by: roverman
Date: June 14, 2021 07:42PM

I've started on a forged crank. Art.


ag1234
Arthur Gertz

(159 posts)

Registered:
03/29/2023 08:26PM

Main British Car:
Re: TR 8 Update, Huffaker GT 1
Posted by: ag1234
Date: June 28, 2025 05:52PM

Carl Floyd, In GT-1 car is allowed 4L.Bore or stroke to get there. I called a guy many years ago had a small journal "billet:,I

Definately want now !
Avanti, fast.


ag1234
Arthur Gertz

(159 posts)

Registered:
03/29/2023 08:26PM

Main British Car:
Re: TR 8 Update, Huffaker GT 1
Posted by: ag1234
Date: June 28, 2025 08:11PM

Yes, well there are C production cars and then there are GT-1 cars. 400 hp with an 85:", wb. makes for a pretty lively package.. Good news in vintage racing, driving ten-tenths, is discouraged. "IF" I make 8,000 rpm at Bonneville, 250 mph will be mine !
Note to self, bring hammer for goose bumps.


ag1234
Arthur Gertz

(159 posts)

Registered:
03/29/2023 08:26PM

Main British Car:
Re: TR 8 Update, Huffaker GT 1
Posted by: ag1234
Date: July 13, 2025 09:03PM

Bonneville motor will have forged crank, Ti, rods. with Lots of rpm. TA heads with intake valves, sized for 5k. elevation. Record is 210 mph.
See you there,! Art.



Edited 1 time(s). Last edit at 07/14/2025 10:48AM by ag1234.
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