High Compression Question..
#1
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High Compression Question..
Hi im putting together a motor and i wanted to see whats the highest compression you guy have run in a street car on pump gas... or whats the safes C/R i should run on pump gas?!?! and yes i'm getting it tuned.
any feed back will be helpful
thanks
any feed back will be helpful
thanks
#2
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Re: High Compression Question..
is it a bbc? a d15? hell even a cat 3116? a lot more info would most likely help
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Re: High Compression Question..
Sorry i didn't go in to detail. i'm going NA, running a GSR sleeved to 84mm bore with CP pistons... i was asking this question because i was on a b series compression calculator (http://www.zealautowerks.com/bseries.html) and calculated my compression at 12:8.1..in my opinion that pretty much track only with race gas... so just wanted to see whats the highest compression NA cars some of u guys are running on pump gas.
Thanks
Thanks
#7
braap braap
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Re: High Compression Question..
If it's a street car... why the fuck do you need over 12:1?
Keep it simple and it works. My 230whp NA B is nothing more than your standard B20 block with a set of 12:1 arias pistons in it. Head was merely cleaned up, 0.05" at most was removed.
Keep it simple and it works. My 230whp NA B is nothing more than your standard B20 block with a set of 12:1 arias pistons in it. Head was merely cleaned up, 0.05" at most was removed.
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Re: High Compression Question..
jezzus thats high...
yes, thats what i was going for 12.1:1 and a sick shue tune.. but there was some confusion with my machinist and he mill my head and decked my block a little more then i wanted..so i ended up with 12.8:1
yes, thats what i was going for 12.1:1 and a sick shue tune.. but there was some confusion with my machinist and he mill my head and decked my block a little more then i wanted..so i ended up with 12.8:1
#9
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Re: High Compression Question..
The motor is merely a pump, all the power is in the head. So get the head right, get a correct set of cams and a nice header.
My setup picked up 15whp PEAK over a JDM ITR header to a DTR/Six-Sigma Racing header. Midrange came up crucially too.
If it's a street car, I HIGHLY recommend Skunk2 Tuner 2s. I made 230 on them, need more cam though , and it idles perfectly.. and my ac blows cold