SC300 VVT-i Turbo SP63
10-21-03, 05:29 AM
#211
Lexus Test Driver
Originally posted by Lex Luthor
Alex's Quicksilver Supra (down your way, the car built by Lujan) ran 9.9 at a buck thirty seven with VVT-i
Alex's Quicksilver Supra (down your way, the car built by Lujan) ran 9.9 at a buck thirty seven with VVT-i
(or whatever the vvti switchover point)Nothing in my post said it make the car's abilities worse. Only below the changeover.
SR
edit: Go to How Stuff Works and ask What is VTEC? Here's an excerpt.
"If high speed operation is all we have to worry about, Honda wouldn't need to implement VTEC. Indeed, race engines that operate mostly at high rpms do not utilize any mechanism like VTEC. But street cars used for daily driving spend most of their time with the engine at low RPMs. Valves that open wide for high RPM operation contributes to rough operation and poor fuel economy at low RPMs. These undesirable traits are directly against Honda's design goals."
Last edited by CmputerWiz; 10-21-03 at 05:48 AM.
10-21-03, 06:27 AM
#212
Lexus Champion
Thread Starter
Steven, VVT-i is not VTEC. This is not a Honda, there are differences, do me a favor and go a couple pages back to read our discussion on this. As we explained the variable valve timing will help produce more torque, rev the motor quicker, increase volumetric efficiency......basically allow me to run a larger turbo than I normally would....call Lance Ho Lung and ask him, he'll concur 100%. Larry Prebis also feels it'll run awesome, so does Dusty Womack, so does JBE Racing, I can go on and on.
Last edited by Lex Luthor; 10-22-03 at 10:20 PM.
10-21-03, 07:15 PM
#214
Lexus Champion
Okay, I must admit I'm laughing at Jon's last post, but I also see the potential for a big flareup here. I dunno what it is, but I see a lot of flaming going on here lately- must be the crappy change of weather thats got everyone down.
Just remember guys, we're the vets here, we need to behave even more so than the newbs.
In summary, take a deep breath gentlemen....
Can't we all just get along
I love you guys
Just remember guys, we're the vets here, we need to behave even more so than the newbs.
In summary, take a deep breath gentlemen....
Can't we all just get along
I love you guys
10-22-03, 08:32 AM
#217
Lexus Champion
Thread Starter
UPDATE TIME
Here's an update for you guys:
Yesterday the oil feed and return lines were done, header bolted up, and turbo fitted. We were relieved the SP header mated up with the VVT-i head, since i'm the first guy doing the SP setup on this head...me and Lar were only 98% sure it would bolt up. Now you guys know for sure. The oil supply for the turbo was unfortunately not really tapped...it looked more like a thread chase, so the turbo's coming off today to have that re-tapped so the threads fully engage. The -10 return line was also too long so that will be trimmed today. Looking at the turbo and header mounted to the block finally gave me a sense that this project will actually see fruition some time soon. JBE also picked up injector clips for me. The plan for today (in addition to doing the two things above) is to remove the bumper and get the intercooler mounted and relocate whatever is necessary (coolant tank, PS lines, etc), then start fabbing IC piping and maybe put the downpipe in after we weld a 2nd bung on for the wideband (have to be carefull not to bugger up the ceramic coating). I'm very happy with the progress so far, and feel there's actually a chance of having this done before they leave for SEMA, but i'm prepared for the extra two weeks if that doesn't happen. We're getting there. I'll have more pics up pretty soon.
Yesterday the oil feed and return lines were done, header bolted up, and turbo fitted. We were relieved the SP header mated up with the VVT-i head, since i'm the first guy doing the SP setup on this head...me and Lar were only 98% sure it would bolt up. Now you guys know for sure. The oil supply for the turbo was unfortunately not really tapped...it looked more like a thread chase, so the turbo's coming off today to have that re-tapped so the threads fully engage. The -10 return line was also too long so that will be trimmed today. Looking at the turbo and header mounted to the block finally gave me a sense that this project will actually see fruition some time soon. JBE also picked up injector clips for me. The plan for today (in addition to doing the two things above) is to remove the bumper and get the intercooler mounted and relocate whatever is necessary (coolant tank, PS lines, etc), then start fabbing IC piping and maybe put the downpipe in after we weld a 2nd bung on for the wideband (have to be carefull not to bugger up the ceramic coating). I'm very happy with the progress so far, and feel there's actually a chance of having this done before they leave for SEMA, but i'm prepared for the extra two weeks if that doesn't happen. We're getting there. I'll have more pics up pretty soon.
10-22-03, 10:32 AM
#219
Lexus Fanatic
Re: UPDATE TIME
Originally posted by Lex Luthor
Here's an update for you guys:
Yesterday the oil feed and return lines were done, header bolted up, and turbo fitted. We were relieved the SP header mated up with the VVT-i head, since i'm the first guy doing the SP setup on this head...me and Lar were only 98% sure it would bolt up. Now you guys know for sure. The oil supply for the turbo was unfortunately not really tapped...it looked more like a thread chase, so the turbo's coming off today to have that re-tapped so the threads fully engage. The -10 return line was also too long so that will be trimmed today. Looking at the turbo and header mounted to the block finally gave me a sense that this project will actually see fruition some time soon. JBE also picked up injector clips for me. The plan for today (in addition to doing the two things above) is to remove the bumper and get the intercooler mounted and relocate whatever is necessary (coolant tank, PS lines, etc), then start fabbing IC piping and maybe put the downpipe in after we weld a 2nd bung on for the wideband (have to be carefull not to bugger up the ceramic coating). I'm very happy with the progress so far, and feel there's actually a chance of having this done before they leave for SEMA, but i'm prepared for the extra two weeks if that doesn't happen. We're getting there. I'll have more pics up pretty soon.
Here's an update for you guys:
Yesterday the oil feed and return lines were done, header bolted up, and turbo fitted. We were relieved the SP header mated up with the VVT-i head, since i'm the first guy doing the SP setup on this head...me and Lar were only 98% sure it would bolt up. Now you guys know for sure. The oil supply for the turbo was unfortunately not really tapped...it looked more like a thread chase, so the turbo's coming off today to have that re-tapped so the threads fully engage. The -10 return line was also too long so that will be trimmed today. Looking at the turbo and header mounted to the block finally gave me a sense that this project will actually see fruition some time soon. JBE also picked up injector clips for me. The plan for today (in addition to doing the two things above) is to remove the bumper and get the intercooler mounted and relocate whatever is necessary (coolant tank, PS lines, etc), then start fabbing IC piping and maybe put the downpipe in after we weld a 2nd bung on for the wideband (have to be carefull not to bugger up the ceramic coating). I'm very happy with the progress so far, and feel there's actually a chance of having this done before they leave for SEMA, but i'm prepared for the extra two weeks if that doesn't happen. We're getting there. I'll have more pics up pretty soon.
