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
(838 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: April 27, 2016 08:54PM

I mentioned your solution to Jim while we were kicking ideas around. I remember seeing it and did think it was pretty cool. I do plan to go with a single exhaust too, but here is what we came up with on the coil packs:
edis mount.jpg


Dan B
Dan Blackwood
South Charleston, WV
(838 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: April 27, 2016 09:14PM

More pics
4-23.jpg
A shot from the mezzanine in Jim's shop.
trigger wheel after weld.jpg
Modification of the 36-2 wheel by adding 2 teeth
trigger wheel after weld2.jpg
A tooth needs cut off to make a 36-1
trigger wheel after weld3.jpg


Dan B
Dan Blackwood
South Charleston, WV
(838 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: April 27, 2016 09:15PM

36-1.jpg


DiDueColpi
Fred Key
West coast - Canada
(1172 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

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Re: TR7 LexusV8 conversion
Posted by: DiDueColpi
Date: April 27, 2016 10:16PM

You're like a magician or something Dan!
The way that reluctor transformed in your hand is awesome! :-)

Cheers
Fred


Dan B
Dan Blackwood
South Charleston, WV
(838 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: April 28, 2016 03:26PM

Actually, that is Jim's hand. You know what a magician he is!


DiDueColpi
Fred Key
West coast - Canada
(1172 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: TR7 LexusV8 conversion
Posted by: DiDueColpi
Date: April 28, 2016 06:12PM

Yes sir I do.


donkelly23
Don Kelly
Charleston, SC
(41 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: TR7 LexusV8 conversion
Posted by: donkelly23
Date: August 03, 2016 02:40PM

An idea for mating that engine and sub to the Wedge.
I had this idea along with a friend Darrell who beat me to the purchase punch.
It's available at most of the usual places.
It's a hydraulic table that raises to 36"
That way you can drop the body and raise the engine. Easy to get under and stay on top of it
It's Out.jpg



Dan B
Dan Blackwood
South Charleston, WV
(838 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: August 03, 2016 03:21PM

A table like that would be handy!


donkelly23
Don Kelly
Charleston, SC
(41 posts)

Registered:
07/21/2011 05:13PM

Main British Car:
1980 TR7 V8 Z28 FI ECM 4.0

Re: TR7 LexusV8 conversion
Posted by: donkelly23
Date: August 03, 2016 03:49PM

I have my trans on it at the moment so that I can sit and work on it at my preferred height


trseven
Gerry Conant
Council Bluffs Iowa
(6 posts)

Registered:
11/05/2012 04:07PM

Main British Car:
1980 Triumph TR7 Stock 2.0

authors avatar
Re: TR7 LexusV8 conversion
Posted by: trseven
Date: August 04, 2016 07:29PM

Can't help but wonder about your progress! Hope all is well. I did come across a page with a Jeep or 2 that got this engine in a transplant.

[www.roadandtrack.com]

Pretty crazy! Still have that extra engine?

Gerry



Edited 1 time(s). Last edit at 08/04/2016 07:30PM by trseven.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5126 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: August 05, 2016 09:50AM

Progress is good. Last weekend Dan and I completed most of the wiring on the conversion so as it now stands there are still a few sensors to hook up, temp and such, and the exhaust pipes, then it is ready for pre-startup checks. We will schedule that for a weekend when we can get together with the Chump car crew since they all helped and will probably want to be there.

A few items, the IAC is a 6 wire connection but is a fairly standard 4 lead stepper motor with two power leads. The odd looking solenoid on the water pump is a hydraulic valve and is not needed, TPS is standard 3 wire. We went with the EDIS ignition which is pretty easy to do but it would be helpful to find a set of plug wires that are well suited to that use. The plug boots go way down a hole and of course the coil boots are unique. I'd post a photo but the car is back under wraps in the barn.

Jim


Dan B
Dan Blackwood
South Charleston, WV
(838 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: August 07, 2016 02:30PM

Yeah, we should have taken some pictures last weekend. I thought about that too late. But with wiring you don't really notice much in wide shots. I used the Lexus wires that came with the engine and put the Ford EDIS plugs for the coil towers on them. Where we mounted the coils it caused the length of the wires to not exactly work out as I would have hoped, so a future upgrade will be getting a better job on the wires. On the other side of that, the injector plugs that Steve and Carl wired up for me using the junk harness parts got upgraded with new injector connectors. Jim did that while I was doing the plug wires. He wired up the EDIS controller while I was hooking up the IAC and TPS.

Which extra engine are you talking about? I do have the Lexus LS400 engine, but we have robbed a few parts. If you were talking about the TR7 engine, I have a spare one of those in my parts car with about 30k on it. Allegedly it is frozen up.


trseven
Gerry Conant
Council Bluffs Iowa
(6 posts)

Registered:
11/05/2012 04:07PM

Main British Car:
1980 Triumph TR7 Stock 2.0

authors avatar
Re: TR7 LexusV8 conversion
Posted by: trseven
Date: August 07, 2016 04:07PM

Thanks for the update! Oh, your spare engine is out of a LS400. I remember somewhere that you picked up a second 1uz and it had a even better leak down test. Thought it was in this thread but I don't see it. I'm not sure the difference in the two models but I remember the SC400 was the one to get. I'm not serious about starting a conversion anytime soon. I just don't have the time at the moment. (stupid house!) And I have a spare TR7 engine myself, anyone want it?

Gerry


Dan B
Dan Blackwood
South Charleston, WV
(838 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: August 07, 2016 06:00PM

Yes, the second engine is the SC400 engine. I was trying to get the rear sump pan and ended up buying the engine. You are correct, it had a much better leak down test, so we used it. The LS400 engine is sitting in my garage with the sump off, valve covers off, front covers off, but most of it is there. On the TR7 forum there are folks who have modified rover pans, used ford pans, etc. but the SC400 pan fits perfectly!


Dan B
Dan Blackwood
South Charleston, WV
(838 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: August 27, 2016 12:25PM

image.jpeg
image.jpeg
Jim and I are making progress



Dan B
Dan Blackwood
South Charleston, WV
(838 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: August 28, 2016 07:00PM

IMG_3953.jpg
We completed the list of wiring, with only a couple of exceptions. The Megasquirt was modified to control EDIS and IAC, but needs the firmware updated. We squirted some gas into the intake in hopes to get it to fire in "limp mode" but it didn't hit.
IMG_3952.jpg
Progress.


Scott68B
Scott Costanzo
Columbus, Ohio
(451 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: August 28, 2016 10:04PM

Looking good Dan!!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5126 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: August 29, 2016 09:02AM

The wiring is done. (Finally!) The controller needs flashed and installed, then we should be ready for final checks and startup next time Dan can come for a visit. Do a little tuning, and he can take it home to have the exhaust installed.

He and I did the last couple of weekends unassisted because for wiring it's hard for more than two people to coordinate working on it and distractions have to be minimized, but now with that part finished if the regular crew wants to be here for the start-up it's just a matter of coordinating the weekend, and I'm sure we can find things to do on the Chump Car, though it may have to be after Townsend, we'll see.

Cranking it sounded good, and we used chain-saw gas which should be good for the rings. Dan also installed a shifter kit in the transmission, and he's looking for a speedo cable adapter. He needs a pair of A/C compressor fitting adapters and will be able then to charge the A/C system. After that it's shake-down and tuning.

Jim


Dan B
Dan Blackwood
South Charleston, WV
(838 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: November 05, 2016 10:33PM





Edited 1 time(s). Last edit at 11/07/2016 11:48AM by MGBV8.


Scott68B
Scott Costanzo
Columbus, Ohio
(451 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: November 06, 2016 09:13AM

Outstanding Dan!!!
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