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MG MGA - In a Dizzy'ing situation

Good day all,

Well it finally happened. The base of my DM2 that has been overtightened way too many times has finally given in. I found another dizzy, this one a 23D4 40819K w/out vac adv. I've searched the archives and viewed the link in the other dizzy thread listed a few days ago and found that it is most likely from a Mini though I could not find a specific listing for the "K". It has a 15 deg designation on the inside which was the same as my DM2. I'm ok w/out the vac adv because it is going into my racer. I went ahead and set it at 32 deg @ 3500 RPM (I don't have a variable timing gun).

What are the collectives thoughts?

j
J Bries

Yep, its out of a mini cooper S. See how it works. You may find that throttle response is not what it once was. If the that's the case, contact me and I'll work out a trade for a good DM2 for you! I usually have a few lying around!
Jeff Schlemmer

J,

On page 36 of the s/t books for MGB's there is the advance curve recommended for race engines.
No I've not seen this for MGA's, but it would be a good starting point.

http://www.1978mgmidget.com/Special_Tuning_for_the_MGB.pdf

Perhaps go for a 25D distributor though and get it remapped to above curve....

Then you can go to a dyno place and give them both distributors and see which is best.

Cheers <MARK>
Mark Hester

This thread was discussed between 17/04/2006 and 18/04/2006

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