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turbo?

 
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murphyleigh Gender:Male
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1989 Cavalier Z24

PostPosted: Mon Sep 29, 2008 4:57 pm    Post subject: turbo? Reply with quote

anybody have any info on a turbo for a 3.1? i have nos already so any advice would be nice.


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88ragtop
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PostPosted: Mon Sep 29, 2008 5:11 pm    Post subject: Re: turbo? Reply with quote

murphyleigh wrote:
anybody have any info on a turbo for a 3.1? i have nos already so any advice would be nice.


Motor stock? Need more info like your goals..

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steve-o Gender:Male
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PostPosted: Mon Sep 29, 2008 7:40 pm    Post subject: Reply with quote

I was thinking to myself "man that car looks familiar" then I realized your from N.S. pretty sure I seen it at a few different car shows.
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murphyleigh Gender:Male
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1989 Cavalier Z24

PostPosted: Mon Sep 29, 2008 7:42 pm    Post subject: Reply with quote

motor is not stock no. it is bored 60 over with keith black nos pistons and rings, heads ported an polished,480 lift comp cams cam,comp springs and lifters,some other shit with a 100 shot of nos.


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murphyleigh Gender:Male
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1989 Cavalier Z24

PostPosted: Mon Sep 29, 2008 7:44 pm    Post subject: Reply with quote

ya man im from halifax.


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blitzed-beretta Gender:Male
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1993 Other

PostPosted: Mon Sep 29, 2008 9:33 pm    Post subject: Reply with quote

what time did you run at greenfield? I think I was there when you were there before, but I don't really remember...
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lilshit Gender:Male
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1992 Cavalier Z24

PostPosted: Mon Sep 29, 2008 9:42 pm    Post subject: Reply with quote

i'm up for a few more pictures, engine bay and interior
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whitelightning2 Gender:Male
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PostPosted: Mon Sep 29, 2008 9:48 pm    Post subject: Reply with quote

just an FYI, Comp dosen't make a roller cam for the 3.1 also Moroso doesn't make oil pans for them either.


you might want to edit your registery and put actual facts in so people will take you seriously.

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PostPosted: Mon Sep 29, 2008 10:07 pm    Post subject: Reply with quote

whitelightning2 wrote:
just an FYI, Comp dosen't make a roller cam for the 3.1 also Moroso doesn't make oil pans for them either.


you might want to edit your registery and put actual facts in so people will take you seriously.


Also you need to resize your pics and add them to your signature option. Any post that is posted in this forum with the attachments being used, in the way you are now will be deleted. There is a reason why we have signature limits.

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mars_man Gender:Male
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PostPosted: Mon Sep 29, 2008 10:53 pm    Post subject: Reply with quote

If you want more power, get a larger nozzle. cheap, easy...
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thumbs Gender:Male
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PostPosted: Tue Sep 30, 2008 5:08 am    Post subject: Reply with quote

your car should be able to run a turbo fine the way it is. as i'm sure you had your engine built for nos. the 2 biggest things when adding boost to a car is the compression ratio and ring gap. if you are running over 9.0 compression ratio i would drop it to about 8.5 to 1. i was talking with rick at nova auto yesterday about my 3100 we decided to keeep the 3100 n/a and get a 3400 built 4 boost give him a call good guy his phone number is nova automotive 902-468-1686 they are over in dartmouth just off windmill rd.
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PostPosted: Tue Sep 30, 2008 8:06 am    Post subject: Reply with quote

thumbs wrote:
your car should be able to run a turbo fine the way it is. as i'm sure you had your engine built for nos. the 2 biggest things when adding boost to a car is the compression ratio and ring gap. if you are running over 9.0 compression ratio i would drop it to about 8.5 to 1. i was talking with rick at nova auto yesterday about my 3100 we decided to keeep the 3100 n/a and get a 3400 built 4 boost give him a call good guy his phone number is nova automotive 902-468-1686 they are over in dartmouth just off windmill rd.


Why do people want to drop the static compression so much?

Dropping the SCR was a way to combat pre-ignition back in the 1960s, over 40 years ago, there have been over 40 years of technological developments made, that doesn't need such a low SCR. Head material, chamber design, port design, cam specs, intake and exhaust design, even the use of EFI has changed the need to drop the SCR.

People have ran well into the double digit boost levels on bone stock 3400s, which are at 9.6:1 SCR.

The guy that runs the engine machine shop that I use has a Turbo Regal, when he rebuilt the engine several years ago, guess what he did with the SCR. He raised the SCR from stock. IIRC he said .5 of a ratio from stock.

Look at newer OEM turbo/supercharged engines, they will be in the 9.x:1 SCR, and these are built with "safe and warrentee friendly specs" in mind.

I know of one member here that is building a high compression (double digit SCR) twin turbo 660.

SCR is just a calculation of the difference of the piston at BDC and TDC, while the engine is not running, as soon as teh engine runs, and that cam is spinning opening and closing those valves, SCR is thrown out the window, and dynamic compression takes over, which is usually quite different than SCR, and in many cases DCR is lower than SCR, until you start to approach the torque peak of the engine and max RPM range of the cam.

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murphyleigh Gender:Male
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1989 Cavalier Z24

PostPosted: Tue Sep 30, 2008 7:07 pm    Post subject: Reply with quote

my best pass was a 13.86 @ 104mph. on the bottle
what was yours? i dont remember seein you their. where you from?
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blitzed-beretta Gender:Male
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1993 Other

PostPosted: Tue Sep 30, 2008 7:50 pm    Post subject: Reply with quote

right on, I lived in Bridgewater, but moved to Alberta almost two years ago. So, I haven't been around lately..lol. But I remember that car from back when it was yellow. I only ran a 15.2 when I was there, but that was untuned with a cracked intake plenum, and my flywheel came loose about half track...lol. fuck me I had a lot of small issues when I first got that thing running.
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