MG-Cars.net

Welcome to our resource for MG Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGA - EFI in a MGA

Has anyone looked into the possibility of fitting Moss' EFI unit into an MGA? What would be the expected advantages?
Tyler
Tyler

You may gain a mile or two per gallon and eliminate the necessity to sync your carbs every couple of years. It is a lot of money for little gain. Going by there literature the main advantage of this system is to get better performance and drivability out of late model, single carb, polution controlled B's. The A's and early B's didn't have the problems that appeared with the polution contorls. You may actually loose some performance going from two carbs in good working order to one very accurate carb as that is what throttle body injection really is.

For comparison I had a 77 suburban with a stock four barrel, and an 89 suburban with throttle body injection, both 350 ci. The fuel injected one couldn't keep up with the carburated one and only got 1 mpg more with overdrive.
John H

Now if some enterprising designer could do a dual injector setup around the stock dual SU manifold with crankshaft position sensing it might be possible to see some interesting stuff like correcting some of the consequences of the siamese porting...
D Sjostrom

Tyler, I have to agree with John. A few years ago we took our race engine (a 1500) to a shop with a dyno, and tried the SU's that came with it, fuel injection, Webers, a set of Rochester Carbs, and a couple of others.The dyno guys said that the SU's gave the best performance.
/ gil
gil

yes,its called a miata...dont want one,thanks
sports car fan

The Moss kit is meant for emissions in CA.

I wouldn't bother with injection for performance on a siamesed port engine - beating your head against the wall.

With an HRG style head it works very well - they used to use TJ mechanical injection on some of the race cars in Britain, and creating a high performance injection system with feedback control would be relatively easy today - it would just take money! You can buy the bits off the shelf.
Bill Spohn

I plan to start with distributor less ignition at some point.
http://picasso.org/mjlj/?q=node/2

I agree with Bill though, not much point with the Siamese ports though.

I have seen 45 DCOE Webber manifolds converted to take injection, but again no use with Siamese.

I have thought that the new air injection heads maybe a better solution and I think Tim from Sportcar Spares in Perth Western Australia has done this to his racing MGB (the silver bullet)

I think cross flow is a better option first though.

Cheers <MARK>
Mark Hester

If you want performance, a supercharger is definitely the way to go! It brings an ear-to-ear grin in anyone used to a normally aspirated A.....
dominic clancy

This thread was discussed between 25/05/2006 and 30/05/2006

MG MGA index

This thread is from the archive. The Live MG MGA BBS is active now.