Triumph Sports Cars

engine swaps and other performance upgrades, plus "factory" V8s (Stag and TR8)

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Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 08:28PM

Ready to lower the car. I videoed a little of the car going down, but had to put the camera down to help
IMG_0932.jpg


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 08:31PM

Here we see the car after it has been lowered onto the subframe. We bolted up the subframe with spacers, tied the tail of the transmission up, and lifted it all back up in the air on Jim's lift. It sure is great to have a brother with such cool tools.
IMG_0934.jpg
IMG_0935.jpg


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 08:36PM

Here is what it looked like when before fine tuning positioning. The hood closed flush.
IMG_0937.jpg
IMG_0938.jpg
IMG_0939.jpg
IMG_0940.jpg


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 08:41PM

First positioning of the shifter. It ended up closer to the front of the hole.
IMG_0942.jpg
Notice how nicely everything fits!
IMG_0943.jpg

IMG_0944.jpg

IMG_0945.jpg


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 08:44PM

Unmodified TR7 subframe, except we cut the motor mount off the top. The 1UZ sump just fits.
IMG_0947.jpg


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 08:49PM

The start of the right side motor mount fabrication
IMG_0949.jpg
The engine is blocked to the proper height and clearance for oil filter, steering rack
IMG_0950.jpg
and header flanges:
IMG_0952.jpg
IMG_0953.jpg


danmas
Dan Masters
Alcoa, Tennessee
(578 posts)

Registered:
10/28/2007 12:11AM

Main British Car:
1974 MGBGT Ford 302

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Re: TR7 LexusV8 conversion
Posted by: danmas
Date: October 14, 2013 09:24PM

That's going to be awesome! Can't wait to see it.



Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 09:29PM

Jim shows off his crazy-mad fabrication skills:
IMG_0958.jpg
IMG_0959.jpg
IMG_0963.jpg


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 09:31PM

Drivers side motor mount from the rear on the last post. Here it is from the front.
IMG_0964.jpg



Edited 1 time(s). Last edit at 10/14/2013 09:32PM by Dan B.


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 09:36PM

We used a stock Supra mount for the transmission and Jim modified the TR7 crossmember.
IMG_0967.jpg
IMG_0968.jpg
IMG_0969.jpg


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 14, 2013 09:43PM

Engine and transmission are bolted in, ready to go to the barn until next time.
IMG_0970.jpg
IMG_0971.jpg


MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar
Re: TR7 LexusV8 conversion
Posted by: MGBV8
Date: October 15, 2013 09:27AM

I just wanted to reiterate that the engine slid in from the bottom with ZERO mods to the engine bay, firewall, or tunnel. You know the saying, "It went right in like it belonged there." Well, it really did.

Also, that motor mount nut pic does not do justice to the ingenious solution. The motor mount stud was not long enough to protrude through the thick aluminum bracket. Several ideas were kicked around. Then, Jim enlarged the hole in the aluminum, took an oversized allen cap screw, lopped off the threads at the smooth shank, gun drilled it to the cap and tapped threads inside. Solved. Next.

Dan has a brother with cool tools that knows how to use them!

Dan, did you remember to close up the air intake before putting the Triumph in the shed?



Edited 1 time(s). Last edit at 10/16/2013 12:41AM by MGBV8.


Scott68B
Scott Costanzo
Columbus, Ohio
(562 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Scott68B
Date: October 15, 2013 10:48AM

Really cool project! Anxious to see it.


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 15, 2013 10:54AM

Yes, we put a mailing tube cap in it and tape over the water inlet/outlets.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6470 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: TR7 LexusV8 conversion
Posted by: BlownMGB-V8
Date: October 15, 2013 12:26PM

These guys give away too much credit. They both had ideas and suggestions that made this thing go so smoothly and my first approach on that mount stud was a complete failure until they helped figure it out. I do wish we had a shot of that nut from the top though, it's a pretty cool piece. I think maybe Dan came up with the idea of using a bolt and Carl had the idea to go to the 5/8" size and in the end it really worked great. But regardless of who did what, we really worked well together.

I think at this point we have somewhere around 60 to 80 hours max in on the car (I probably should have documented the time but when it's your brother's car why would you?), times 3 guys both weekends for probably something around 175 to 200 man hours counting errands over two long weekends. And I'm thinking that's not too shabby going from the stock TR7 to this point on a first attempt. Considering we also managed to get a little work done on the Chump car while we were at it of course was a plus.

Jim



mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: TR7 LexusV8 conversion
Posted by: mgb260
Date: October 15, 2013 12:45PM

Good work guys!


bsa_m21
Martin Rothman
Vancouver, Canada
(216 posts)

Registered:
01/06/2009 11:41AM

Main British Car:
1980 TR7V8 Rover 3.9L

authors avatar
Re: TR7 LexusV8 conversion
Posted by: bsa_m21
Date: October 17, 2013 09:57PM

Great work.

You really are going to have to give some thought into the front brakes though. The stock TR7/8 brakes are marginal, about the right size for a Mini (the original ones), not something putting out that kind of horespower.

Also, you may want to take a peek at the rear trailing arm, body mounts. They are a real weak point on these cars. The bodies rust out there and the arm mounting holes are usually oval'd. I did a fair bit of bracing and welding to stiffen up all of that area when I did my conversion to V8.

Enjoy!

Martin


tomsbad6
Tom Ahlstrom
Michigan
(129 posts)

Registered:
12/16/2012 03:16PM

Main British Car:
Triumph TR-6 347 Ford

Re: TR7 LexusV8 conversion
Posted by: tomsbad6
Date: October 18, 2013 05:11PM

Hey Dan it looks like you're having a ball I just have a couple questions how much horsepower does a motor like that make and what kind of rearend do you put behind it


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 18, 2013 05:34PM

The stock SC400 engine is supposed to put out 265 hp. I am going with the stock 3.45 Triumph rear end at least for now


Dan B
Dan Blackwood
South Charleston, WV
(1007 posts)

Registered:
11/06/2007 01:55PM

Main British Car:
1966 TR4A, 1980 TR7 Multiport EFI MegaSquirt on the TR4A. Lexus V8 pl

authors avatar
Re: TR7 LexusV8 conversion
Posted by: Dan B
Date: October 18, 2013 05:52PM

I do plan to upgrade the brakes at some point. I did find out, however, that the stock brakes were vastly improved when I installed Hawk pads. I went from having lots of fade in the mountains to none. Jim & Ken drove it on the dragon last year and the brakes did fine. Thanks for the tip on the rear suspension too!
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