MG Sports Cars

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

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ex-tyke
Graham Creswick
Chatham, Ontario, Canada
(1117 posts)

Registered:
10/25/2007 11:17AM

Main British Car:
1976 MGB Ford 302

authors avatar
Re: 340 upgrade
Posted by: ex-tyke
Date: May 14, 2019 05:56PM

Good one, Rob.
The strobe effect will lull the competition to sleep


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: May 15, 2019 09:17AM

Huh. Not quite what I had in mind but it does have a sort of playschool appeal.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: May 25, 2019 04:17PM

Cam sensor 3.jpg


MGBV8
Carl Floyd
Kingsport, TN
(3980 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: 340 upgrade
Posted by: MGBV8
Date: May 25, 2019 06:39PM

A Robo dizzy!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: May 25, 2019 08:18PM

Yep. Mr. Roboto.

Actually, a cam sensor for the BOPR with the LS engine controller. The 3rd one I've made, all different designs. Come to the EFI tech session at the BritishV8 meet to see them all plus much more.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: November 25, 2019 01:10PM

The wiring for the GM EFI is now all done. Needs some checks done and a bit of program changes, mostly to accommodate the firing order plus some general tune up and maintenance. Should be firing it up in another week or two I think.

Jim


rficalora
Rob Ficalora
Willis, TX
(2686 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: 340 upgrade
Posted by: rficalora
Date: November 25, 2019 09:50PM

Looking forward to the start up report Jim!



Scott68B
Scott Costanzo
Columbus, Ohio
(549 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

authors avatar
Re: 340 upgrade
Posted by: Scott68B
Date: November 27, 2019 09:40PM

I'm also looking forward to that Jim!


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: December 07, 2019 09:31AM

Fittings for the coolant drains came in today, that's the last thing I think, before the programming work. Soon I will have no more excuses. I'm fitting 90 degree 1/8" NPT street "L"s to the block then pipe nipples, then valves. That way it will be easy and convenient to drain the block into a bucket instead of all over the bottom of the car and widely distributed on the floor.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: December 17, 2019 11:54AM

Rolled the car off the lift yesterday. I've been in negotiations with a couple of tuners over the last week concerning the initial tune. Issues about running boost and changing the firing order need to be resolved. One is clueless about the firing order and the other wants to do a custom OS and add tables for the boost, meaning being married to EFILive as a tuning suite instead of freeware, which I'd rather avoid. But it does have more capability. They run separate licenses for cars though so the issue is avoiding multiple license charges if, say I wanted to tune with my laptop, desktop, or android phone.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: May 15, 2020 12:05PM

Looks like HPTuners is going to get the nod. One of the more expensive options, and it costs $100/ECM to use plus $300 for the adapter (software is a free download) but it is the most refined tuning suite I've come across so far, seems pretty intuitive and easy to use for the most part, comes with a library of stock and custom tunes, has an active user forum which seems to have a friendly culture, and probably the single most persuasive item, has real time tuning (RTT) which I came to rely on with MS. So it fits my tuning methodology. It also has easily understood and used histograms which you cut and paste into your tuning tables to make adjustments easier. Lastly there are a lot of u-tube videos, some of which are professional grade instructionals. So I expect I will make that purchase today.

The time I have spent so far just getting to this point would pay that cost many times over.

Jim


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: June 16, 2020 01:11AM

Today (technically yesterday now) was a day of success. Once again I have pulled off a coup that nobody else has ever done. It was a long hard challenge, far beyond what I expected, but now that it's done I feel that the results are worth it. Let me just say that I had a lot of help along the way, and all of you who did have my thanks.

So, without further adooo, the Buick 340 now lives under GM control via the junkyard P01 ECM from a '01 Silverado programmed with an operating system that was from an '02 Camaro courtesy of my friends at GearheadEfi.com/forum with a 2 bar mod from HPTuners and parts of a tune from a guy I don't even know called Country Boy and other sources plus a great many U-tube videos. It has COP, all the GM sensors and now probably runs better than it ever did before, even after only one day of tuning efforts. That will only get better.

So I think this probably ends this 340 thread. The goal has been achieved. Sure there is more to be done to the car, but there always is and those can be posted elsewhere.

Were I to start over would I go this route? No, but about the only thing I would do differently would be to build the engine based on the 300 block instead of the 340 and use the TAPerformance heads. In fact, that engine including heads is at the machine shop today. I also still have the 8 speed and an upgrade to the GM E67 Controller and TCM from a 2014-2016 Cadillac might find it's way into the car sometime in the future. Other plans include completion of the AC system along with a new dashboard design, completion of the active wing controls, and possibly a new front suspension design with proper onboard height control. But for now I'm just going to drive it.

Jim

Jim


MGBV8
Carl Floyd
Kingsport, TN
(3980 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB, Buick 215

authors avatar
Re: 340 upgrade
Posted by: MGBV8
Date: June 16, 2020 09:19AM

Fantastic!


mgb260
Jim Nichols
Sequim,WA
(2058 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: 340 upgrade
Posted by: mgb260
Date: June 16, 2020 04:02PM

Jim, Cool! Any pics of the COP's.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5952 posts)

Registered:
10/23/2007 12:59PM

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

authors avatar
Re: 340 upgrade
Posted by: BlownMGB-V8
Date: June 17, 2020 11:27AM

Only thing I have right now:

IMG_0002.JPG

IMG_0001.JPG

IMG_0003.JPG

IMG_0002.JPG

Jim

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