Whats the highest Compression For boost ?

[ej6Hatch]

Hey everyone... I am continuing my swap as you can see from the link here...
http://www.clubcivic.com/board/showthread.php?t=161401
My goal is 300 Whp ... I have a built motor... however I dont know the compression just yet.... this is what is in it :

-Skunk2 adjustable cam gear
-Gude Racing D16z6 Cylinder Head and Cam
-ARP d16 head studs
-Golden Eagle block guard
-Skunk2 Pro Series Intake manifold (matched bore)
-Hondata intake manifold gasket
-Custom 63mm bore throttle body
-CP pistons Eagle connecting Rods

I bought it off someone that had the car totaled.
Now if the compression is too high... what would be the easy way to get the compression back down ?
I dont really want to swap a whole head because this one is worth 1,500. But if its a must I will...
I am just looking for the easy way to drop compression if its too high!
I will be boosting so I just want to know what the highest compression should be for this.
gt28 or the T3 T04E is the planned route.... I dont know how much a gt28 can make.... so off to research ... Thanks for the replies in advance!

 

[ej6Hatch]

Well I found this....

D16Y7
Found in:
1996-2000 Honda Civic DX/VP/LX/CX
1999-2000 Honda Civic Special Edition - SE(Canada)
1996-97 Honda del Sol S
1997 Honda Civic Coupe LSI
Displacement : 1,593 cc (97.2 cu in)
Bore and Stroke : 75 mm × 90 mm (3.0 in × 3.5 in)
Compression : 9.4:1
Power : 106 hp (79 kW) @ 6400 rpm
Torque (ft·lbf@rpm): 103 @ 4,600 rpm
Redline : 6800 rpm
Rev-limiter: 7200 rpm
Valvetrain : SOHC 16 valves
Fuel Control : OBD2 MPFI
Head Code : P2F
Piston Code : P2E
ECU Code : P2E


With the head shaved some and the block guard I hope its not too far off from the 9.4 maybe 10 ?
I know the cp pistons and rods kept the factory compression. Just dont know about this z6 Gude head!
Any ideas ?

 

[Billy.]

what type of pistons are you using? they will make the biggest difference in your CR. also, you should use a low compression headgasket. you can still tune a boosted motor with 10:1 CR and get 300whp pretty easy. my ls/vtec is 9.99:1 on 0.5bar of boost and made almost 290whp . i know im comparing b vs d but yours is built, mine is only rebuilt OEM.

 

[xxsenceo89x]

racecars runs high compression on high boost. its all about the tune. we only lower compression to make it easier to tune. while doing this were actually loosing power.