crx si help
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Joined: Jun 2007
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From: harwood, md, usa
crx si help
i am getting ready to buy a 91 crx si w/ d16z6 head and a d16y7 block the guy i am buying it from said that it has srp pistons eagle rods and an obd0-obd1 conversion . he told me the comprssion in each cyl was 273 across the board does that sound right he also said he had the block and head milled he didnt say how much though . i just dont want to get screwed can someone help me with this . also would this setup be good for a turbo ? i have a t3t4 i was thinking about putting on it i wouldlike to get about 260 whp .
thanx
thanx
Honda-Tech Member
Joined: Aug 2005
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From: NE Ohio, USA
I can't find your answer to your compression test numbers, checked on google n such. As far as the turbo goes, is it a name brand... i.e Garret, Turbonetics or is it an ebay brand? My buddy has a d16y7 w/ a y8 head running the Greddy Turbo kit, with all supporting mods and is running about 265whp on 12-15 psi.
Thread Starter
Junior Member
Joined: Jun 2007
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From: harwood, md, usa
Re: crx si help (dboz3403)
no its an ebay turbo but i have heard mixed coments about these things it was free and its brand new so i cant complain . but i need to find out what the psi in each cyl psi is
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Joined: Apr 2006
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From: Mid Missouri
Re: crx si help (dboz3403)
OK. Either the guy mistakenly gave you the wrong number he gave you the "ricer" number. From this site: http://www.pumaracing.co.uk/comp.htm You can see that compression checks will give you an idea of your compression ratio. They say that your pressure from a compression test is typically 16-20 times the compression ratio.
With this, you take 273 divided by 20 and you get 13.65:1 compression.
Now, take 273 divided by 16 and you get 17.0625:1
Both of those numbers are not too believable. I'd say the guy is either mistaken on the number or he's blowing smoke up your *** trying to bend you over on the car. Either way, those kind of cylinder pressures are not acceptable for a turbo car. They are more like race gas all motor numbers...
Ryan
With this, you take 273 divided by 20 and you get 13.65:1 compression.
Now, take 273 divided by 16 and you get 17.0625:1
Both of those numbers are not too believable. I'd say the guy is either mistaken on the number or he's blowing smoke up your *** trying to bend you over on the car. Either way, those kind of cylinder pressures are not acceptable for a turbo car. They are more like race gas all motor numbers...
Ryan
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