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Thread: 71 TVR Vixen V8 Conversion

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    71 TVR Vixen V8 Conversion

    Greeting fellow TVR forum members... Happen to notice not much going on in TVR forum land and I'm pretty sure behind the scenes things are happening..

    Sooo... I thought I'd post activity related to the restoration \ V8 conversion for my 71 Vixen..

    Its going slow but progressing.. The V8 (Ford 302 roller) has been rebuilt (aluminum heads - its my understanding the 302 with these heads weighs 60 lbs less than the original 6 cylinder)..

    Currently the chassis is at Bent fabrications for some mods (engine and differential (Jaguar Xj12) mounts)... Tim has also fabricated the headers too..







    Cheers
    Joe O

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    Moderator Mickey Richaud's Avatar
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    Re: 71 TVR Vixen V8 Conversion

    Hey, Joe (Hmmm... someone ought to write a song to that)

    Very interested in your project. As it happens, this weekend a bunch of British engine conversion folks are going to be here in Townsend, Tenn. this weekend (starting today) for an informal gathering. If you're available and would like to check out some great samples of V8 and V6 shoe-horning, come on down! We'll be at the Talley Ho Inn until Sunday.

    And if you're not already onboard, the British V8 website is a great resource - link to the thread of the meetup is here: http://forum.britishv8.org/read.php?10,65571


    Mickey
    "There are three kinds of men. One who learns by readin'. The few who learn by observation. The rest of them have to pee on that electric fence for themselves." Will Rogers
    Mickey Richaud - '73 MGB, '69 MGB GT/V6 (both SOLD! ); Victor TF 1800; '03 Jaguar XK8
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    Re: 71 TVR Vixen V8 Conversion

    Hey Mickey, thanks for the heads up... I won't be able to attend.. Sure wish I could... Would be very interested in learning of any online coverage.. I've been to the British V8 website and have been very impressed with content and efforts \ results of the member contributions. Some are simply amazing.


    Cheers
    Joe O

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    Moderator Mickey Richaud's Avatar
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    Re: 71 TVR Vixen V8 Conversion

    Well, just in case you missed it, the next "official" gathering will be in St. Louis, June 3-7.

    If you're ever down this way, let me know.

    Mickey
    "There are three kinds of men. One who learns by readin'. The few who learn by observation. The rest of them have to pee on that electric fence for themselves." Will Rogers
    Mickey Richaud - '73 MGB, '69 MGB GT/V6 (both SOLD! ); Victor TF 1800; '03 Jaguar XK8
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    Luke Skywalker
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    Re: 71 TVR Vixen V8 Conversion

    Are you using the heads to secure the motor to the chassis?
    Cheers,
    D.
    "If it's got t*ts or tyres, you've got problems"
    www.englishmotorsatfairbrook.org
    TVR Car Club North America Southwest Regional Organiser

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    Re: 71 TVR Vixen V8 Conversion

    Hey Grantura_MKI... Yes, using this method opens up the bottom some for additional clearance... Feedback from Tim Chiles of Bent Fabrications - common for off-road tube chassis...

    I've also seen where these are available for backside of the heads.

    Fortunate for me, Tim was available to help out on my project..



    Cheers
    Joe O

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    Luke Skywalker
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    Re: 71 TVR Vixen V8 Conversion

    Good luck with that.
    Cheers,
    D.
    "If it's got t*ts or tyres, you've got problems"
    www.englishmotorsatfairbrook.org
    TVR Car Club North America Southwest Regional Organiser

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    Re: 71 TVR Vixen V8 Conversion

    Quote Originally Posted by Grantura_MKI View Post
    Good luck with that.
    WOW Grantura_MKI... don't know what to make of your post regarding my response (head engine mounts)... First impression (perhaps very lasting).. a bit snarky.... Not something I would expect among fellow enthusiasts... Maybe this site is not something I want to be a part of...

    Happy to just hang out \ be a part of the Triumph Experience site... Over there I've always experienced great camaraderie among fellow enthusiasts.


    Joe O

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    Jedi Trainee EricG's Avatar
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    Re: 71 TVR Vixen V8 Conversion

    A Tiger friend of mine did the same front mounts to get header clearance and I thought it was a great idea. It is a tight fit on a TVR so keep up the good work and keep posting photos and info about these rare cars! Eric

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    Luke Skywalker
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    Re: 71 TVR Vixen V8 Conversion

    Not what I meant.
    This is a GREAT forum.
    Under racing conditions this my work. But as a road car, the heads are not the best for hanging motor mounts.
    I do like to see early cars under there original motor.
    Cheers,
    D.
    "If it's got t*ts or tyres, you've got problems"
    www.englishmotorsatfairbrook.org
    TVR Car Club North America Southwest Regional Organiser

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    Re: 71 TVR Vixen V8 Conversion

    I stopped by the shop today (Bent Fabrications) to drop off the engine... Tim has the differential mounts in position.. (I was incorrect previously... its an XJ6 diff not XJ12)..




    Cheers
    Joe O

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    Re: 71 TVR Vixen V8 Conversion

    The engine - Originally the plan was to use stock exhaust manifolds reversed (sides swapped).. Come out top front and down under.. Now the plan is to use custom headers..





    Cheers
    Joe O

    63 Triumph TR3B (undergoing restoration)
    71 TVR Vixen (undergoing restoration \ V8 302 conversion)
    72 TVR Vixen Driver (Alternate weekend beer runner)
    11 BMW Z4 sdrive35is (Primary weekend beer runner)

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    Luke Skywalker
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    Re: 71 TVR Vixen V8 Conversion

    It named a Salisbury diff.
    Cheers,
    D.
    "If it's got t*ts or tyres, you've got problems"
    www.englishmotorsatfairbrook.org
    TVR Car Club North America Southwest Regional Organiser

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    Re: 71 TVR Vixen V8 Conversion

    Pretty awesome looking engine. It looks like you're doing the conversion right. Many of them are unsuccessful if not dangerous. Everything has to be beefed up and the differential ratio has to be lower numerically. I had an MG TD conversion that kept the original 5.125 differential. The motor raced and the car went nowhere.

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    Re: 71 TVR Vixen V8 Conversion

    That's some nice header fabrication. I ended up with some Sunbeam Tiger manifolds to get enough clearance in my Healey. I'm sure you'll see a big horsepower gain over those log manifolds.

    Last edited by HealeyRick; 10-10-2019 at 07:15 AM.
    Rick

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    Re: 71 TVR Vixen V8 Conversion

    Quote Originally Posted by pdplot View Post
    Pretty awesome looking engine. It looks like you're doing the conversion right. Many of them are unsuccessful if not dangerous. Everything has to be beefed up and the differential ratio has to be lower numerically. I had an MG TD conversion that kept the original 5.125 differential. The motor raced and the car went nowhere.
    Hey PDPLOT.. oh yeah for sure.. don't want anything even near dangerous!
    63 Triumph TR3B (undergoing restoration)
    71 TVR Vixen (undergoing restoration \ 302 V8 conversion)
    72 TVR Vixen (driver - alternate weekend beer runner)
    11 BMW Z4 sdrive35is (driver - primary weekend beer runner)

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    Re: 71 TVR Vixen V8 Conversion

    Quote Originally Posted by HealeyRick View Post
    That's some nice header fabrication. I ended up with some Sunbeam Tiger manifolds to get enough clearance in my Healey. I'm sure you'll see a big horsepower gain over those log manifolds.


    Wow... really nice looking HealeyRick! Is that Tremec transmission? I have a standard 5 speed and bought a White lightning street rod edition shifter to move it up... Else I would have had to go with a Cobra style shifter.. Would have liked to source a Tremec but the budget needed to go for higher priority items..

    I see you were able to keep the oil filter positioned on the block.. not sure I can.. we'll see...
    63 Triumph TR3B (undergoing restoration)
    71 TVR Vixen (undergoing restoration \ 302 V8 conversion)
    72 TVR Vixen (driver - alternate weekend beer runner)
    11 BMW Z4 sdrive35is (driver - primary weekend beer runner)

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    Re: 71 TVR Vixen V8 Conversion

    Stopped by the shop today... removed all remaining parts off the chassis. Getting ready to send it out for media blasting (plastic).. We really want to get it down to bare metal to inspect for any issues (already found one crack that will need to be repaired)..









    63 Triumph TR3B (undergoing restoration)
    71 TVR Vixen (undergoing restoration \ 302 V8 conversion)
    72 TVR Vixen (driver - alternate weekend beer runner)
    11 BMW Z4 sdrive35is (driver - primary weekend beer runner)

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    Re: 71 TVR Vixen V8 Conversion

    Quote Originally Posted by Grantura_MKI View Post
    It named a Salisbury diff.
    oh yeah.. for what ever its called its got to take on what I believe the TR6 diff would have had a difficult time doing..
    63 Triumph TR3B (undergoing restoration)
    71 TVR Vixen (undergoing restoration \ 302 V8 conversion)
    72 TVR Vixen (driver - alternate weekend beer runner)
    11 BMW Z4 sdrive35is (driver - primary weekend beer runner)

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    Yoda HealeyRick's Avatar
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    Re: 71 TVR Vixen V8 Conversion

    Quote Originally Posted by JoeO View Post
    Wow... really nice looking HealeyRick! Is that Tremec transmission? I have a standard 5 speed and bought a White lightning street rod edition shifter to move it up... Else I would have had to go with a Cobra style shifter.. Would have liked to source a Tremec but the budget needed to go for higher priority items..

    I see you were able to keep the oil filter positioned on the block.. not sure I can.. we'll see...
    The Tremec is a Ford Motorsport T5Z that I bought new. When I set the motor and transmission in the car, I placed it so the shift lever would come out of the original location in the tunnel. Fortunately, it all worked out from there. It has a Tri-ax shifter with a 289 Cobra-style shift lever.

    Rick

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