wheres the engine redline?

dogfighter · 10-10-2004, 07:59 PM

when u mod an engine and do all sorts of perfomance upgrades to it, how do u know if the redline of the engine changes or what it has changed to? Jeff Chambers, one of the moderators has a 308ci spinning past 8500 rpm. thats just insane to me...how did you know it was safe to run that high?

Jeff Chambers · 10-12-2004, 05:16 PM

I test all my engines on the engine dyno at Victory Engines (www.victoryengines.com). With my current motor, I'm spinning it to 8500rpm even though we never pulled it that high on the dyno; we stopped at about 7700rpm (and still hadn't seen peak HP). Its only through running time and time again at the track and keeping very detailed notes on the performance that I have been able to keep increasing my rev limit without hurting the motor. I use an Autometer Dual Channel Tachometer to record both engine and driveshaft data for every run, then carefully disect that data.

What promotes high rpm stability? Lots! Full titanium valvetrain including custom Victory 1 Performance titanium valves, lightened pushrods with oil restricted tips, high-rev cam lobe profiles, lightweight neutral balanced internals, perfectly matched rocker arms, and most importantly meticulous attention to every detail of the engine building process.

dogfighter · 10-12-2004, 11:28 PM

wow...thats alot. thanks dude, very informative

dogfighter · 10-12-2004, 11:38 PM

wow...thats alot. thanks dude, very informative

10-10-2004, 07:59 PM	#1
dogfighter Registered Member Join Date: Sep 2004 Location: baltimore(middle river), md Posts: 12	wheres the engine redline? when u mod an engine and do all sorts of perfomance upgrades to it, how do u know if the redline of the engine changes or what it has changed to? Jeff Chambers, one of the moderators has a 308ci spinning past 8500 rpm. thats just insane to me...how did you know it was safe to run that high? __________________ i eat so much rice i should be asian

10-12-2004, 05:16 PM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	I test all my engines on the engine dyno at Victory Engines (www.victoryengines.com). With my current motor, I'm spinning it to 8500rpm even though we never pulled it that high on the dyno; we stopped at about 7700rpm (and still hadn't seen peak HP). Its only through running time and time again at the track and keeping very detailed notes on the performance that I have been able to keep increasing my rev limit without hurting the motor. I use an Autometer Dual Channel Tachometer to record both engine and driveshaft data for every run, then carefully disect that data. What promotes high rpm stability? Lots! Full titanium valvetrain including custom Victory 1 Performance titanium valves, lightened pushrods with oil restricted tips, high-rev cam lobe profiles, lightweight neutral balanced internals, perfectly matched rocker arms, and most importantly meticulous attention to every detail of the engine building process. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

10-12-2004, 11:28 PM	#3
dogfighter Registered Member Join Date: Sep 2004 Location: baltimore(middle river), md Posts: 12	wow...thats alot. thanks dude, very informative __________________ i eat so much rice i should be asian

10-12-2004, 11:38 PM	#4
dogfighter Registered Member Join Date: Sep 2004 Location: baltimore(middle river), md Posts: 12	wow...thats alot. thanks dude, very informative __________________ i eat so much rice i should be asian

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