Street port, beveled rotors - pictures
i have to say it looked a lot bigger in the far shot then close up... I would think you would want to go bigger on the port then start beveling the rotors?. I am going to be building a full bridge motor and i am thinking i might actually do the beveling as well after seeing your pics... You will definantly have to find a local $40.oo dyno day and make a few pulls. It would be nice to know how much power and what RPM its at... Anyhow props for stepping up and doing it and thanks for the pictures. Keep us updated
Thread Starter
Seduced by the DARK SIDE
Joined: Apr 2001
Posts: 7,323
Likes: 2
From: Orange Park FL (near Jax)
Bigger ports are like booze. A little is fun. Too much and you get in trouble.
Today I'm at 250 miles, shifting at 5K & 5PSI boost, just starting to test it.
Today I'm at 250 miles, shifting at 5K & 5PSI boost, just starting to test it.
well, you can count me in as being one of the guys that recognizes and supports your efforts. i hope it all works out for you. i can't wait to hear the reports of what it does when you're able to open it up. dyno pulls would be great, but i guess more than one variable has been changed so it would matter very little. good job, anyway!
i support you all the way dude. it takes alot of ***** to do something like this from the seat of your pants, but, you also have a backup plan if this engine blows up...and you learn wayyyyy more than what you spent in money on the engine
Full Member
Joined: Mar 2005
Posts: 231
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From: Alton, Godfrey, & Macomb IL
Originally Posted by Spoolerr
Wouldnt that lower the cr of the rotors alot, cutting away all that material?
Those should just let more of a mixture in.... Combustion will still take place in the unchanged bathtub.Oh, and this project looks very cool! I cant wait to see some dyno sheets.
my question is how much would this lower compression, i understand the potential is based on the size of the bevels, but if this is done, to an amount say lke CLR rotors, how much would that lower compression?
- chris
- chris
Originally Posted by bigdv519
Haters?? Where?
Its not DIY just to "do it yourself". Thats dumb. Its DIY because its not in his budget/schedule to send them out to get beveled/balanced. No offense at all, SureShot, I'm behind you on this 99%. I'm sure if you had a machine shop in your area that was willing to bevel the rotors for next to nothing, you would have gone ahead with it through them, as long as it didn't interupt your time schedule.
Its not DIY just to "do it yourself". Thats dumb. Its DIY because its not in his budget/schedule to send them out to get beveled/balanced. No offense at all, SureShot, I'm behind you on this 99%. I'm sure if you had a machine shop in your area that was willing to bevel the rotors for next to nothing, you would have gone ahead with it through them, as long as it didn't interupt your time schedule.
i'm not saying anything about SureShot's particular motives, as I have no idea either way, but DIY can be for a number of other reasons other than saving money, and no, its not dumb.
Thread Starter
Seduced by the DARK SIDE
Joined: Apr 2001
Posts: 7,323
Likes: 2
From: Orange Park FL (near Jax)
Interim progress report:
400 miles, shifting at 5K boost at 6 PSI. All is well
The oil & filter get changed this weekend. That will clear out any assembly debris & assembly lube.
400 miles, shifting at 5K boost at 6 PSI. All is well
The oil & filter get changed this weekend. That will clear out any assembly debris & assembly lube.
Thread Starter
Seduced by the DARK SIDE
Joined: Apr 2001
Posts: 7,323
Likes: 2
From: Orange Park FL (near Jax)
interim update:
500 miles - oil change - dial boost up to 7 PSI.
This is getting interesting - start out easy - floor it - the tires start spinning - when I nail 2nd at 6K the tires just keep on spinning (a new experience for me).
1st & 2nd gear boost is falling off >6K - Hmm - I probably need to keep it below 6K for a while longer anyway.
500 miles - oil change - dial boost up to 7 PSI.
This is getting interesting - start out easy - floor it - the tires start spinning - when I nail 2nd at 6K the tires just keep on spinning (a new experience for me).
1st & 2nd gear boost is falling off >6K - Hmm - I probably need to keep it below 6K for a while longer anyway.
Thread Starter
Seduced by the DARK SIDE
Joined: Apr 2001
Posts: 7,323
Likes: 2
From: Orange Park FL (near Jax)
The idle sounds perfectly stock, with a little more growl on rev up.
The ACT street light flywheel seems nicely matched to this motor.
The long term plan:
Turbo back stainless exhaust, wideband, water injection, then maybe a hybrid compressor,
Oh yea & more tires.
I should be able to get some videos posted next month.
The ACT street light flywheel seems nicely matched to this motor.
The long term plan:
Turbo back stainless exhaust, wideband, water injection, then maybe a hybrid compressor,
Oh yea & more tires.
I should be able to get some videos posted next month.
Thread Starter
Seduced by the DARK SIDE
Joined: Apr 2001
Posts: 7,323
Likes: 2
From: Orange Park FL (near Jax)
I have a really tight torque brace, so I feel torque vibration during low rev acceleration.
Other than that no vibration.
After 524 miles of break in:
Link to video clip (avi 1.9Mb)
60 degrees ambient - 7PSI boost - G-tech net HP (after aero & drive line loss)
I'm getting close to 250 FWHP.
Other than that no vibration.
After 524 miles of break in:
Link to video clip (avi 1.9Mb)
60 degrees ambient - 7PSI boost - G-tech net HP (after aero & drive line loss)
I'm getting close to 250 FWHP.