High compression boost build
#1
High compression boost build
Need advice on what compression to use 0.70 A/R Compressor, 1.05 A/R Turbine
T4 Twin Scroll Exhaust Housing
4" Anti-Surge Inlet
2.5" Compressor
- Turbine Wheel: 72.5mm/84.50 I wanted to use 10:1 but using a ls crank gsr block an b16 head it has become in possible unless custom pistons are made can 85mm sleeves hold up "erl block" I have found pistons for that bore also using turbo tuff rods an e85 fuel
T4 Twin Scroll Exhaust Housing
4" Anti-Surge Inlet
2.5" Compressor
- Turbine Wheel: 72.5mm/84.50 I wanted to use 10:1 but using a ls crank gsr block an b16 head it has become in possible unless custom pistons are made can 85mm sleeves hold up "erl block" I have found pistons for that bore also using turbo tuff rods an e85 fuel
#3
Honda-Tech Member
Re: High compression boost build
Use a flat top piston. Compression should be in the 10.5.1 range and it works perfect. IMO compression doesn't mean much... I have run 8.4:1 to 12.0:1 on 40-50psi..
Most piston manufactures work well up to the 800hp range then a higher quality piston should be used. My latest engine had a dish piston~ 9.8:1 off the shelf CP with upgraded pins they didn't have flat tops instock...
Most piston manufactures work well up to the 800hp range then a higher quality piston should be used. My latest engine had a dish piston~ 9.8:1 off the shelf CP with upgraded pins they didn't have flat tops instock...
#6
Re: High compression boost build
So 10:6.1 sounds like it would work I just don't want that low compression lag I am also running a top mount and a open down pipe through the hood I just want it to spool fast
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YOSOLO CRX
All Motor / Naturally Aspirated
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11-13-2003 08:53 PM