MGB build for speed events - Australia - V8 conversion and lots more
After owning my 1964 mgb roadster for 25 years I'm going to try and get it finished by end of next year before I turn 50.
The car was largely finished a decade ago, but money and other constraints stopped work. I have oodles of photos an details, but I'm on holiday right now so can only share the attached photos. I'll upload more in a couple of weeks. I've used some software called cartest 2000 to simulate how fast my mgb will go when finished. I won't go into any details here as I do need to do a proper build page, but the car was largely finished some years ago so I have basic info. The car is running a turbo 4l rover and we saw 630hp on the dyno and masses of torque. It's a running a 9" with a 2.75 rear and 18" wheels and a gearbox with a 1:1 fifth. Using a cd of 0.4 and the normal frontal area cartest shows it should do 190mph. It's a brick, but it has a small frontal area. Even fiddling with a 2.5 rear it will go 200mph. Of course this is all simulated but changing the cd does have the right effect and less power dies make such speeds unattainable. In my base config: - the windscreen will be replaced by a small lexan one - front spoiler and large splitter - flat underbody - small side mirrors - cabin will be enclosed except for drivers position, this includes behind driver/passenger. - rear wing (adjustable) - rear diffuser with cut outs behind rear tyres to reduce pressure - front guard vents to reduce pressure. - car is very low - headlight covers I'm planning on 2 configurations. One for straight line speed events such as standing km, where the rear wing will be deleted, and the diffuser reduced. I may also try a full front windscreen and roof depending on how it goes. The other config. will have large rear wing and rear diffuser. The majority of the work is panelling but I'm no expert so that's isn't as easy it sounds. I'm happy to answer any and all queries. I'm sure I'll have plenty of my own. Cheers Byron |
Moderator Curtis Jacobson Portland Oregon (4586 posts) Registered: 10/12/2007 02:16AM Main British Car: 71 MGBGT, Buick 215 |
Re: MGB build for speed events - Australia - V8 conversion and lots more
Now that's an engine! You can't post too many photos of that one. Welcome to BritishV8.
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britcars Phil Ossinger New Brunswick, Canada (346 posts) Registered: 02/02/2009 07:58PM Main British Car: 1977 MGB Roadster, Rover 3.5 ADVENTURE BEFORE DEMENTIA! |
Re: MGB build for speed events - Australia - V8 conversion and lots more
Empressive engine Byron!! I see that it is going in a 64 MGB. Will that fit in an MGB with the those headers and all the plumbing and intercooler associated with the two turbochargers?
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DiDueColpi Fred Key West coast - Canada (1375 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: MGB build for speed events - Australia - V8 conversion and lots more
Holy Shmaboly!
Now that's a power plant. Beautiful work. Uhmm...what part was Rover again? As far as CD, even if you were driving a sheet of plywood it would still mph. Cheers Fred |
Re: MGB build for speed events - Australia - V8 conversion and lots more
It fits, but it is tight, I've got oodles of photos I just didn't have time to upload everything at once.
As for what part is rover, it's a fair question, it is a rover 3.5block, intake etc, we just enhanced it a little. Reliability is a concern so speed events will limit the amount of run time, and of course we can fiddle with the boost etc. The major tasks at the moment is panelling at the rear (tubs etc). The running gear is all sorted, but needs to be checked as it's been sitting around for 13 years. I'll post more tomorrow and you'll see that it all fits. More soon. Byron |
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Re: MGB build for speed events - Australia - V8 conversion and lots more
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Re: MGB build for speed events - Australia - V8 conversion and lots more
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Re: MGB build for speed events - Australia - V8 conversion and lots more
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Re: MGB build for speed events - Australia - V8 conversion and lots more
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Re: MGB build for speed events - Australia - V8 conversion and lots more
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Re: MGB build for speed events - Australia - V8 conversion and lots more
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Re: MGB build for speed events - Australia - V8 conversion and lots more
Very very impressive. I really like that you have been able to get the ground clearance by keeping everything above the chassis rails, this is something I will be going back to fix on mine. I didn't see the fender flares in the pictures but I know that can be another sticking point on the ground clearance. It was for me so I'd say go big, especially with those wheels. Rear clearance was tough while trying to keep the monocoque together under the flares. I really like your watts link in the rear, very clean. I'd love to see more pictures of it all together, this has got to be one of the most impressive and well engineered MGB builds I've seen.
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