JDM stage 3 for S281 SC
01-13-2009, 05:02 PM
#22
Join Date: Aug 2005
Location: Texas
Posts: 8
So true! Even stock, driven hard, couple of fouled injectors, etc. = lean = ping, pang, pop!
I'm running Brenspeed's 'Corvette Killer' package and am very satisfied. I put it on the dyno at a local shop (PSI) to confirm A/F etc. and tweak. Output is very much in line with everyone else I've seen.
You won't have to question whether the upgrade makes a worthwhile $ difference - since that's probably what you're thinking. There are, however, 3 problems w/ the upgrades we've suggested:
(1.) wheel hop and traction loss render 1st and 2nd gear oftentimes useless,
(2.) bet slip sounds kinda neat but begs for a tensioner upgrade, and
(3.) you may hurt someone's feelings, such as those in upgraded C5 or bolt-on C6 Vettes.
Good luck and enjoy!!
I'm running Brenspeed's 'Corvette Killer' package and am very satisfied. I put it on the dyno at a local shop (PSI) to confirm A/F etc. and tweak. Output is very much in line with everyone else I've seen.
You won't have to question whether the upgrade makes a worthwhile $ difference - since that's probably what you're thinking. There are, however, 3 problems w/ the upgrades we've suggested:
(1.) wheel hop and traction loss render 1st and 2nd gear oftentimes useless,
(2.) bet slip sounds kinda neat but begs for a tensioner upgrade, and
(3.) you may hurt someone's feelings, such as those in upgraded C5 or bolt-on C6 Vettes.
Good luck and enjoy!!
01-14-2009, 03:32 PM
#25
3rd Gear Member
Join Date: Sep 2006
Location: Manhattan Beach, CA
Posts: 695
Does anyone know of an actual member on these forums who blew a motor at 450rwhp or lower? I've asked this several times before and I don't believe I've ever seen a response from anyone.
I've never heard of anyone blowing their motor under 450rwhp, so I'd consider that to be the bright-line border of safety. Exceed it without forged internals at your own risk.
01-15-2009, 01:23 PM
#30
2nd Gear Member
Join Date: Oct 2007
Location: Alabama
Posts: 417
I spoke with Jim Sr today regarding this whole "blow your engine" issue and he indicated that JDM has several cars running the 3.0 pulley with stock internals with no issue. Based on the discussion I had with him, alot of it has to do with the gas you use. While not necessary, he indicated that for peace of mind I could put in 5 gallons of VP MS 103 per full tank... Given their reputation and that they make their living tuning these cars (and racing them), I have no reason not to believe him.