Are you spraying this motor with nitrous? 632 need a lower timing than say a 500. pictures of pistons. Take barrel back, ask vendor to test. At an Nhra meet they can test for you, But I think you are a little to far away. Sounds like a cool operation. I help a friend with his promod he runs a 63 vette w/ a Troy Buff 432 blown alky motor. 6.20@225 I didn't understand stroke question #2.
Skip -----Original Message----- From: H. Kwakkel [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 11, 2002 1:07 AM To: Chevelle List Subject: [Chevelle-List] not really chevelle, but chevy drag power Next to restoring my chevelle, I'm also a mecanic in Team ProStreet Dragracing. We race a 1999 Chevy Monte Carlo ProMod, with 632 Donovan engine (built by Pat Musi). The last races we did we had a lot of problems with detonation and so burned a lot of pistons. (burned 8 pistons in 1st elimination round in the European Finals at SantaPod, Engeland). We have two ideas how this could happen. 1. Change in fuel. We use C23 VP fuel, but changed to another barrel half this season, same time as the problems started. Can I test octane number? 2. Because the stroke is relatively big, the pistons comes out of the boring for 1/2 - 3/4 in most lowest position. The bores are not changed for the last two years. Could the bores be oval so the piston play is bigger and it takes oil up, which causes detonation? Any input is appriciated! Because this is not chevelle related maybe responses offlist. Thanks Henri '66 Malibu 230 The Netherlands --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.384 / Virus Database: 216 - Release Date: 8/21/02 ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED] ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
