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20psi
newbie
Joined: 16 Nov 2001
Posts: 6
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 Posted: Sat Nov 17, 2001 1:22 am Post subject: BIGBOOST&SEATS |
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| I HAVE A TWO LITRE WITH TWIN SU'S MY MOTOR IS RUNNING ALMOST 7:1 COMPRESSION CAN I RUN 16 TO 22 POUNDS BOTH THROUGH IT FAIRLY SAFELY WITHOUT AN INTERCOOLER OR WATER METHANOL INJECTION ALSO I WOULD LIKE TO PUT BUCKET SEATS IN THE BACK HAS ANYONE TAKEN THE TIME TO PULL THE BACK SEAT OUT AND HAVE A LOOK IS IT POSSIBLE TO DO IT? |
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martin
backyard mechanic
Joined: 04 Oct 2001
Posts: 900
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| Posted: Sat Nov 17, 2001 1:44 am Post subject: Re: BIGBOOST&SEATS |
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would have only had to read that once to understand it if it weren't for the caps...
anyways
there isn't all that much room in or behind the back seats. You can take them out and have a look for yourself by first removing the bottom part of the back seat by either the bolts on the early models or clips on the later and then removing the bolts securing the upper section in and then pulling the backrest up and towards you.
Im sure you could find a way to fit buckets but there isn't much room for modification as the petrol tank is sort of in your away along with a whole lot of metal brackets.
have fun.
big boost won't help your seats  |
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rotorgem
tinkerer
Joined: 04 Oct 2001
Posts: 80
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| Posted: Sat Nov 17, 2001 1:02 pm Post subject: Re: BIGBOOST&SEATS |
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| it would not be to hard actually you would have to do some cosmetic work to cover the tank and floor once the seat are in but just make up some fixed seat rails and bolt them in make sure u allow for the angle of the back rest may not be the same as the original back seat. |
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MatMan
tinkerer
Joined: 04 Oct 2001
Posts: 280
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| Posted: Mon Nov 19, 2001 1:53 pm Post subject: Re: BIGBOOST&SEATS |
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The boost you can run depends on the compressor efficiency. Smaller turbos have to spin harder andd therefor heat up the air more, and so have a lower boost threshold. Big turbos can run the same boost at a cooler charge tempurature. The only real way to know the detonation limit is to get it on a dyno and slowly wind the boost up until it starts to ping, then wind the boost back probably about 2psi. You can do this on the road but when you hear detonation, wind the boost back 3 or 4psi, because light detonation can occur and when you are driving you might not hear it.
P.S. Get an intercooler |
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