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TVR Speed 6 Swap?


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#1 SloganVZ

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Posted 22 August 2016 - 10:42 AM

So I'm buying a 72 240z roller. Has anyone done a TVR Speed 6 swap. It could be so cool. 4L inline 6 at 390hp. Sounds like a blast. One is for sale on eBay UK for like 3750 GBP. So like 5k USD.

#2 rturbo 930

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Posted 22 August 2016 - 10:59 AM

Someone on here made a thread on some sort of TVR engine swap, but it never went anywhere. There was some concern about the engine being too tall to fit.


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#3 ryant67

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Posted 22 August 2016 - 02:15 PM

Are spare parts available, and what is the cost of them like?  That would be my first concern.  TVR has changed hands, shut down, reopened, etc, quite a few times over the past couple decades.  Could lead to some headaches when it comes to support.  Would make for a pretty compelling swap though!  



#4 Neverdone

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Posted 22 August 2016 - 04:17 PM

A notoriously unreliable engine, that's never been imported in the US, with no spare parts at all, no support, and never been attempted before...

 

I don't think I'd file that one under a really good idea.

 

Also that 3750 pounds doesn't get you a transmission either.

 

If you're looking for the highest horse n/a straight-6 240z build you can do, I'd probably go BMW instead. You'll end up saving thousands and tons of tons of time as someone's already done it before.


Edited by Neverdone, 22 August 2016 - 04:17 PM.


#5 SloganVZ

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Posted 22 August 2016 - 06:05 PM

All valid points. Thanks for bringing me back down to earth guys. Guess I'm off to look into a S54.

#6 Neverdone

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Posted 23 August 2016 - 09:00 AM

If you're interested in doing that, I'd suggest starting by reading everything posted in this build thread before you start.

 

http://retrorides.pr...m3-powered-240z

 

You will absolutely need to be able to fabricate or be able to spec & acquire custom engine & transmission mounts, get a custom driveshaft that mounts to the BMW flexdisk and whatever diff you plan on running, and you'll also have to deal with BMW's anti-theft software in their ECU (so running a standalone ECU is probably going to be your best bet). 

 

It can be done, and as that build thread proves, it can be done cleanly. Just be ready for a lot of work. It will be very awesome if you pull it off though.



#7 JMortensen

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Posted 25 August 2016 - 06:46 AM

Might want to read this before you go too far down the BMW route: http://thegarage.jal...shit-1784684330


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#8 Neverdone

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Posted 25 August 2016 - 08:43 AM

Meh, all those issues with the S52 and S54 have fixes for them. The connecting rod bearing issue was only on early early models of the E46 M3 and was a factory warranty issue. 

 

The only really crappy issue I know of is the high pressure fuel pump on the N54/55. I don't believe BMW has ever addressed that issue even to this day.

 

But overall I will agree that "German reliability" is the greatest hoax ever pulled on the American consumer.



#9 munters

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Posted 4 weeks ago

Im driving a n54 with 450hp since 100kmiles with the first pump. The Problem is the gas in the us with this pump. It has been adressed by other companies in the us and works as well.




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