26 CHECKMATE

I wanted to see if any one could help me with a timing question. I just finished building a motor it is a 454 stroked with a weiand 177 blower. It seemed to run well on the dynoat 35 degrees. I dont want to set it to high and risk detonation but I dont want to set it to low where I can burn a valve. Any suggestions? As always thanks for your help!

Dennis Moore

The key to finding the best timing is to back off until power drops and then return to the lowest timing figure that gives full power. You never want to run more timing than is necessary. If the engine runs as good with 30 degrees advance there would be no reason to run it at 35 degrees advance!
Sincerely
Dennis Moore
FAMILY AND PERFORMANCE BOATING MAGAZINE

puder

i have a a similar setup 454mag .030 over with a 174 blower making 5psi of boost. It was setup to run at 33* i asked my engien biulder, Bruce Dudley if taht was too much and he felt it was ok and not on eth edge of detonation. I will be running 92+ octante gas at all times just to be on the safe side.

Griff

What is the static compression ratio? There was a thread dealing with the same topic a week or two ago.

DOCTOR DAVE

like griff asked, compression ratio and amount of boost will determine your total timing, generally blower motors run between 28 and 32 degrees of timing.

rjcardinal

Is this the real Dennis Moore posting on our board. If its you Dennis let me be the first to thank you for all the info in your book. Your book is quoted and recommended here everyday. Its great to have the real deal on board.

Ron

bsag

Dennis, love the mag and all of its tecnical info. Keep it going.

TomR

Welcome to the board Dennis
I have also read and re-read your book on BBC, very helpful info.

Shorty

Welcome Dennis! I too have your book and like you mag. Thank you in advance for any advice and input that you are willing to share with us here!

Shorty

Dennis Moore

Thank you, RJ Cardinal, Too Old (me too), BSAG, TomR and MACH 1 SHORTY.
I really appreciate it!
Sincerely
Dennis Moore
MERC MASTER TECH
writer for
FAMILY AND PERFORMANCE BOATING MAGAZINE
author of HP Books
BIG BLOCK CHEVY MARINE PERFORMANCE
SMALL BLOCK CHEVY MARINE PERFORMANCE