MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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Moderator
Curtis Jacobson
Portland Oregon
(4275 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

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New to the gallery: Jim Durham's MGB V8!
Posted by: Moderator
Date: July 13, 2016 02:31AM

http://www.britishv8.org/MG/JimDurham/JimDurham-AA.jpg

Another beautifully crafted car documented for BritishV8's How-It-Was-Done article collection!

Check it out here: Jim Durham's 1980 MGB with Ford 302cid V8 Engine

http://www.britishv8.org/MG/JimDurham/JimDurham-BK.jpg

Post your comments and congratulations below V


HealeyRick
Rick Neville

(432 posts)

Registered:
12/19/2007 05:01PM

Main British Car:
1963 Austin-Healey 3000 Ford 5.0L

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Re: New to the gallery: Jim Durham's MGB V8!
Posted by: HealeyRick
Date: July 13, 2016 08:15AM

Beautiful. Impressive that Jim did all the work himself.


Burrogs
Matt Burroughs
Houston, TX
(34 posts)

Registered:
01/18/2016 02:19PM

Main British Car:
1970 MGB GT V8 Conversion Ford 331ci

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Re: New to the gallery: Jim Durham's MGB V8!
Posted by: Burrogs
Date: July 13, 2016 10:51AM

Fantastic work! I'd love to know more about that radiator and how you made it fit.


MG four six eight
Bill Jacobson
Wa state
(254 posts)

Registered:
10/23/2007 02:15AM

Main British Car:
73 MGB Buick 215, Eaton/GM supercharger

Re: New to the gallery: Jim Durham's MGB V8!
Posted by: MG four six eight
Date: July 13, 2016 11:32AM

I like it, nicely done Jim!

Bill


danmas
Dan Masters
Alcoa, Tennessee
(556 posts)

Registered:
10/28/2007 12:11AM

Main British Car:
1974 MGBGT Ford 302

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Re: New to the gallery: Jim Durham's MGB V8!
Posted by: danmas
Date: July 13, 2016 08:03PM

Awesome!


Charles
Charles Long
McDonald, TN
(144 posts)

Registered:
09/15/2013 08:54AM

Main British Car:
1966 MGB V6 1994 Camaro 3.4L 60V6

authors avatar
Re: New to the gallery: Jim Durham's MGB V8!
Posted by: Charles
Date: July 13, 2016 10:28PM

Cool, Cool, Cool. You done good


rficalora
Rob Ficalora
Cypress, TX
(2291 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: New to the gallery: Jim Durham's MGB V8!
Posted by: rficalora
Date: July 14, 2016 02:33AM

WOW! Very Impressive Jim! And great write-up Curtis.



MGBV8
Carl Floyd
Kingsport, TN
(3042 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
79 MGB, Buick 215

authors avatar
Re: New to the gallery: Jim Durham's MGB V8!
Posted by: MGBV8
Date: July 15, 2016 10:57AM

Very nice! You guys are killin' me with all these magazine quality show cars. I may have to start leaving mine at home.


perrymgbv8
Perry Stephenson

(166 posts)

Registered:
12/06/2007 02:50PM

Main British Car:


Re: New to the gallery: Jim Durham's MGB V8!
Posted by: perrymgbv8
Date: August 24, 2016 06:26PM

That is one Sweet build !! Respect :)


JonB
Jonathan Barber

(3 posts)

Registered:
09/08/2016 10:47PM

Main British Car:


Re: New to the gallery: Jim Durham's MGB V8!
Posted by: JonB
Date: September 08, 2016 11:27PM

Sooo Nice... Love the headers


MustangSix
Jack Collins

(28 posts)

Registered:
12/16/2011 10:53AM

Main British Car:


Re: New to the gallery: Jim Durham's MGB V8!
Posted by: MustangSix
Date: September 12, 2016 09:32AM

Beautiful car! I love it when the cars have been re-engineered to incorporate all the V8 bits, but still look stock.

The best looks are achieved when form follows function as in this car. Great job!


mgb260
Jim Nichols
Sequim,WA
(1727 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: New to the gallery: Jim Durham's MGB V8!
Posted by: mgb260
Date: September 12, 2016 05:00PM

Jim, Awesome!


JWD
Jim Durham
Gig Harbor, Wa.
(81 posts)

Registered:
01/22/2013 11:43AM

Main British Car:
1980 MGB Ford 302

Re: New to the gallery: Jim Durham's MGB V8!
Posted by: JWD
Date: September 12, 2016 09:43PM

I haven't logged in since Curtis posted this thread. I'm humbled at all the compliments. Thank you to those that like the car. I've moved on to my next project but I must admit, this car is a lot of fun.


pjkbrit
Peter J KELLY

(1 posts)

Registered:
09/01/2016 10:26AM

Main British Car:


Re: New to the gallery: Jim Durham's MGB V8!
Posted by: pjkbrit
Date: October 25, 2016 10:13AM

this car is beautiful.....BUT....and I speak out of a place of concern and experience...I would shield both the fuel pump and clutch slave from heat...they are both awfully close to that exhaust!


JWD
Jim Durham
Gig Harbor, Wa.
(81 posts)

Registered:
01/22/2013 11:43AM

Main British Car:
1980 MGB Ford 302

Re: New to the gallery: Jim Durham's MGB V8!
Posted by: JWD
Date: October 27, 2016 08:52PM

"I speak out of a place of concern and experience"

I got an e-mail regarding your post so I thought I should reply. 2 dimensional pictures can be deceiving. The clearance between the slave cyl./fuel pump and exhaust is several inches. There has been no problem in the areas you noted. I've been building custom cars for 40+ years and have a bit of "experience" myself. Thanks for your concern.



Edited 1 time(s). Last edit at 10/27/2016 10:40PM by JWD.



JWD
Jim Durham
Gig Harbor, Wa.
(81 posts)

Registered:
01/22/2013 11:43AM

Main British Car:
1980 MGB Ford 302

Re: New to the gallery: Jim Durham's MGB V8!
Posted by: JWD
Date: January 12, 2017 09:19PM

Time for an update. My original "mild" 320HP engine developed an issue and instead of dealing with it, I decided it was new engine time and up the HP and make the car a little more nasty. The new engine dyno'd at 398.9HP and 383.2 TQ. The difference between the two engines is like night and day. Here's a short clip of it at idle - [www.youtube.com]


billymgb1000
bill gaulin
harrisville R.I.
(54 posts)

Registered:
11/30/2012 12:31AM

Main British Car:
1974 MGB V8 LS1 5.3

Re: New to the gallery: Jim Durham's MGB V8!
Posted by: billymgb1000
Date: January 13, 2017 04:09AM

Wow Jim sounds awesome, now if you don't mind how about some action shots. You know a shot of a nice smoke show, maybe a couple donuts. Just get our blood flowing.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5155 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: New to the gallery: Jim Durham's MGB V8!
Posted by: BlownMGB-V8
Date: January 13, 2017 12:25PM

Sure is a pretty little car to have all that power.

Just curious Jim, what dyno numbers were you aiming for, and what is your exhaust system? (Did you make your target and if not, how far were you below it?)

Jim


JWD
Jim Durham
Gig Harbor, Wa.
(81 posts)

Registered:
01/22/2013 11:43AM

Main British Car:
1980 MGB Ford 302

Re: New to the gallery: Jim Durham's MGB V8!
Posted by: JWD
Date: January 13, 2017 08:25PM

The goal was 400HP which would have easily been reached but the pull was stopped at 6000 RPM. It was still increasing 4-6 HP per 100 RPM so 6100 RPM would have exceeded the goal. The exhaust description is in the HIWD.



Edited 1 time(s). Last edit at 01/13/2017 08:26PM by JWD.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5155 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: New to the gallery: Jim Durham's MGB V8!
Posted by: BlownMGB-V8
Date: January 14, 2017 11:42AM

Thanks. Reason I asked is that I'm gathering data related to the use of shorty headers vs long tube headers and my theory is that with shorty headers and log manifolds, reversion tuning theory analysis will promote greater efficiency which would benefit most of our cars. I was curious to see if your build supports that theory or opposes it. Interestingly enough it supports it. I note that the canister type mufflers (the only component in your system which could generate a reversion pulse) is located as far from the exhaust ports as is possible, making the volume of the reversion chamber as large as is practical for this size car. That combined with the tube size gets it into the range I think is needed to put the reversion pulse in phase with the exhaust valves. Note that the glass packs do not create reversion pulses but act by attenuation. Do your canister type mufflers have an internal baffle, or are they straight-through?

Jim
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