04-15-2015, 11:41 AM | #1 |
BANNED
Join Date: Jun 2010
Location: Utica, Ohio
Posts: 522
|
manifold
I have this manifold on my engine and would like to know if anybody knows what model it is and how it performs compares to others.
|
04-15-2015, 02:47 PM | #2 |
Senior Member
Join Date: Jul 2010
Posts: 2,593
|
Re: manifold
Take a look at the thread titled "Hot rod magazine article on testing popular flathead manifolds" have a look at the linked article for a dyno comparison of your Edelbrock regular dual against some other manifolds.
Martin. |
Sponsored Links (Register now to hide all advertisements) |
|
04-15-2015, 03:03 PM | #3 | |
Senior Member
Join Date: May 2010
Location: Napier, New Zealand
Posts: 2,001
|
Re: manifold
Quote:
Or ... you could buy a copy of John W Lawson's (JWL on here) book Flathead Facts and get the facts. |
|
04-15-2015, 03:29 PM | #4 | |
Senior Member
Join Date: Jul 2010
Posts: 2,593
|
Re: manifold
Quote:
With both in hand, you'll see that the dyno comparison in the magazine article, closely relates to what a lot of folk do. Ie, just change the manifold. Now pick up Johns book an you'll see that with a bit of time spent with the ignition timing, the power can be bought up a bit more. Johns initial test of the PM7 against a stock single, made my eyebrows go up. You gota buy it to find out all the facts. And always remember, dyno comparison numbers should only be used to compare on the same dyno. The very same engine can and will show different power numbers when tested on different dynos. Some builders use extremely "happy" dynos. If a stock flathead dynos at anywhere near its factory rating, that is a happy dyno, as was Henry's. Martin. |
|
04-15-2015, 03:50 PM | #5 |
Senior Member
Join Date: May 2010
Location: Granger (Northern) Indiana
Posts: 1,520
|
Re: manifold
The intake is a '49-'53 regular dual, but don't remember the model number. I've been running the same one on my '51 for many years with very good results. The carbs are now are 94s but will change to 48s or 97s in the future.
|
04-16-2015, 11:05 AM | #6 |
BANNED
Join Date: Jun 2010
Location: Utica, Ohio
Posts: 522
|
Re: manifold
Sponsored Links (Register now to hide all advertisements)
Thanks for the reply. Was just wondering if other people thought this was a good performing manifold as I don't have any experience with other manifolds on flatheads. Mine is a 276 with many modifications and runs very well after I tuned on it. Why would you want to change carburetors? |
04-16-2015, 11:30 AM | #7 | |
Senior Member
Join Date: May 2010
Location: Granger (Northern) Indiana
Posts: 1,520
|
Re: manifold
Quote:
|
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|