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View Poll Results: What compression ratio got you to the 800RWHP please post which: turbo or centrifugal
8.5-8.7
6
10.71%
8.8-9.0
9
16.07%
9.1-9.3
15
26.79%
9.4-9.6
13
23.21%
9.7-9.9
1
1.79%
10.1+
12
21.43%
Voters: 56. You may not vote on this poll

Poll: What compression are you running at +/- 800RWHP?

 
Old 09-25-2009, 12:34 PM
  #21  
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7.8:1 here with the procharged 347ci motor. Only acctually seen 826rwhp at 4800 so I don't know what is makes with fuel now on 93 as usual.
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Old 09-25-2009, 01:07 PM
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8:5 Compression here highest numbers in my sig but I'm shooting for 800rwhp with the new setup not on pump gas though 16-18psi.




Originally Posted by Inspector12 View Post
7.8:1 here with the procharged 347ci motor. Only acctually seen 826rwhp at 4800 so I don't know what is makes with fuel now on 93 as usual.

Your the 1st one I see with under 8:5 comprssion with Procharger I remember 1DirtyZ Ran 8:5 but he sprayed it too.

How much boost are you running those are awesome numbers with 347ci and only 4800rpm!!!
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Old 09-25-2009, 01:25 PM
  #23  
8 sec potential, 12 sec slip
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Wow! What an interesting thread! The results are quite surprising to me too seeing them so far spread apart.
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Old 09-25-2009, 03:00 PM
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Originally Posted by venom ws7 View Post
8:5 Compression here highest numbers in my sig but I'm shooting for 800rwhp with the new setup not on pump gas though 16-18psi.







Your the 1st one I see with under 8:5 comprssion with Procharger I remember 1DirtyZ Ran 8:5 but he sprayed it too.

How much boost are you running those are awesome numbers with 347ci and only 4800rpm!!!
Yeah while I have taken lots of advice and picked peoples brains over the years I still have a few ideas that I test and this was one of them. I think it was about 18lbs at that point in the RPM's and 16* of timing. I am sure that there are a ton of different ways to slice bread, I still like to try different ways lol. No real ***** down low allows for some good traction for the car to get motivated before the power hits hard lol! It would suprise some how effective it is.
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Old 09-25-2009, 09:09 PM
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^^^ what kind of rims are those on the blue ss you got? if you do not mind me asking
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Old 09-25-2009, 09:14 PM
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On my BLACK SS those are Bogart in my signature.
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Old 09-26-2009, 06:32 AM
  #27  
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Thanks again for the votes guys! Inspector, didn't mean to leave you off the chart. LOL I can surely say that I am no closer to a firm CR decision now..... HAHA
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Old 09-26-2009, 10:03 AM
  #28  
8 sec potential, 12 sec slip
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Originally Posted by FI402Z View Post
...I can surely say that I am no closer to a firm CR decision now..... HAHA
LMAO! Yea, with these results, I can't imagine this thread did ya any good at all
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Old 09-26-2009, 04:07 PM
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Originally Posted by FI402Z View Post
Thanks again for the votes guys! Inspector, didn't mean to leave you off the chart. LOL I can surely say that I am no closer to a firm CR decision now..... HAHA
Not a problem I just didn't get to vote lol! On the turbo car it is @ 8.2:1 so I guess I could have put that one in there. Still over all I go lower than most and this poll backs that up, but I do continue to run on 93 so I shoot for the lower side and it allows me some aggressive tunning if I want and No2 as an option etc... I do have meth kits I haven't run them in a while, but alway planning on installing them when I get busy with everyday stuff and other people's cars got another one in a few days ago. Its and 01SS Speed Inc. built back a few years ago. A few things don't seem like Speed Inc. quality so I can't confirm all, but some of this stuff looks like a 5th grader did it. But you know how that is you never know the whole story behind someone else's project.
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Old 09-26-2009, 04:49 PM
  #30  
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This might help you make up your mind. It is from Procharger.

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Old 09-26-2009, 05:18 PM
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It comes down to low compression and high boost or higher compression and less boost. Then you have to decide if you want to run meth or not as well. So many variables its crazy to see the differences in everyones builds. Great thread!
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Old 09-26-2009, 10:55 PM
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i just found out that a shortblock I purchased on here is going to be 8.1, so i guess I will be able to run some really aggressive timing on pump gas no meth.
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Old 09-28-2009, 01:12 AM
  #33  
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Originally Posted by kikass_z28 View Post
It comes down to low compression and high boost or higher compression and less boost. Then you have to decide if you want to run meth or not as well. So many variables its crazy to see the differences in everyones builds. Great thread!

Why not higher compression and lots of boost ? I think it all boils down to exactly what the build is for. Street motor with pump gas, low comp wins unless E85 is readily available. Race geared motor, higher comp with good gas. Also depends on what kinda block/head combo you're gonna run.
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Old 09-28-2009, 04:30 AM
  #34  
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Guys, thanks again for the votes! All your input is greatly appreciated. Looks like the majority is starting to level off in the 9.0-9.5 range.
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Old 09-30-2009, 07:49 PM
  #35  
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Getting quiet in here......
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Old 09-30-2009, 07:56 PM
  #36  
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44 votes seems like a lot of guys are running 800 HP! Thats a buttload more votes than I thought this thread would get! Wonder how many voters actually are in the range they claim to be in lol
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Old 09-30-2009, 09:56 PM
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I run E-85, but this is what I've got. 11.3:1 with a small cam (224/220) 4.0 inch blower pulley netted me 750 corrected.
I'm currently building a new 347 with a bigger cam 3.4 in pulley and about 13:1, results pending.
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Old 10-01-2009, 01:31 PM
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so if i had a forged 6L (hopefully 402/8) motor built with about 8-8.5:1 cr, would it give me problems or ride too much like crap if it took me a while to get the procharger installed? If it was tuned without boost, would this make it safer? sorry f1402Z for hijacking
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Old 10-01-2009, 02:07 PM
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LS3 416" D1sc 15lbs with methanol 9.2:1 C/R
actual 55F dynoJet 858rwhp 780rwtq
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Old 10-01-2009, 02:44 PM
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Interesting post Blown Vette, but if that is completely accurate, I'm in trouble haha.
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