Compression in Stock Turbo Cars?
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Joined: Apr 2003
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From: Boulder, CO
Car Info: Stock 2001 WRX
Compression in Stock Turbo Cars?
I've been wondering why it is that manufacturers don't have a higher compression in the stock turbo-charged engines so as to give more low end power? I realize there's a detonation issue if the compression is set too high but couldn't you get just as much power out of a high compresssion, low boost engine as that of a low compression, high boost engine in the stock realm of the auto manufacturers?
I do understand tremendous amounts of boost can produce insane amounts of power but I'm just interested in something that manufactures could produce and stand behind on the warranty.
Mike
I do understand tremendous amounts of boost can produce insane amounts of power but I'm just interested in something that manufactures could produce and stand behind on the warranty.
Mike
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Joined: Feb 2003
Posts: 488
From: 12.9 / 105+
Car Info: black my03 5mt wrx s/w
Re: Compression in Stock Turbo Cars?
Originally posted by mikesoob7
I've been wondering why it is that manufacturers don't have a higher compression in the stock turbo-charged engines so as to give more low end power? I realize there's a detonation issue if the compression is set too high but couldn't you get just as much power out of a high compresssion, low boost engine as that of a low compression, high boost engine in the stock realm of the auto manufacturers?
I do understand tremendous amounts of boost can produce insane amounts of power but I'm just interested in something that manufactures could produce and stand behind on the warranty.
Mike
I've been wondering why it is that manufacturers don't have a higher compression in the stock turbo-charged engines so as to give more low end power? I realize there's a detonation issue if the compression is set too high but couldn't you get just as much power out of a high compresssion, low boost engine as that of a low compression, high boost engine in the stock realm of the auto manufacturers?
I do understand tremendous amounts of boost can produce insane amounts of power but I'm just interested in something that manufactures could produce and stand behind on the warranty.
Mike
saab does somthing like that in their LPT cars. they're limited to about half a bar of boost.
ken
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From: 12.9 / 105+
Car Info: black my03 5mt wrx s/w
Originally posted by OldGuy
High compression + Turbo, unless you use VERY expensive parts (Pistons, rods, heads, etc.) = Hand Grenade.
High compression + Turbo, unless you use VERY expensive parts (Pistons, rods, heads, etc.) = Hand Grenade.
it certainly CAN be done, and done well... you just have to keep the boost down. act like an idiot and run too much, and THEN you have a hand grenade!
ken
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Joined: Aug 2003
Posts: 75
From: Thousand Oaks, CA, USA
Car Info: WR Blue WRX
Mostly a reliablilty issue with most auto makers. I agree with what ride5000 said it can be done but most manufactuers don't have high tolerance levels on their stock components and when running high compression and boost things are going to turn out bad.
Look at most camaro's 10:1 compression most superchargers are around 4-5 lbs kits. Were with mustangs around 9:1 compression most kits are around 6lbs. These are safe numbers not high performance.
Look at most camaro's 10:1 compression most superchargers are around 4-5 lbs kits. Were with mustangs around 9:1 compression most kits are around 6lbs. These are safe numbers not high performance.
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