Twin turbo build help..

[TurboBu]

8:1 compression is for dinosaur engines oe iron headed sbc and bbc with bad combustion chamber designs. LSX engine will be a slug on the bottom end like that

[Zspoiler]

Excuse Me, I`m running a set of ported Eldelbrock Performer RPM Aluminum Cylinder heads.With 2:05 intake /1:60 Manley valves. And I run 15 lbs of boost. And I know a number of successful engine builders. 8:1 compression is the maximum compression.Unless you want to run alcohol or race gas.Other wise the pre ignition will kill the rings.

[417 Motorsports]

Originally Posted by Zspoiler

Excuse Me, I`m running a set of ported Eldelbrock Performer RPM Aluminum Cylinder heads.With 2:05 intake /1:60 Manley valves. And I run 15 lbs of boost. And I know a number of successful engine builders. 8:1 compression is the maximum compression.Unless you want to run alcohol or race gas.Other wise the pre ignition will kill the rings.

I'm sorry but you are a prime example of why the Internet is such a bad source for technical information. 8:1 compression was great in the early days of turbocharging but with today's technology it only makes fr a sluggish unresponsive "n/a" motor until the turbo is able to achieve positive pressure.

In today's modern day its not uncommon to see 9.5, 10, even 10.2:1 factory produced forced induction engines rinning on 91-93 octane pump gas. My personal car is 11:1 on pump fuel (e85) sees 24-25 psi with 24' of timing in boost and has been together making 4 digit rwhp numbers for 4 years currently with no issues.

Keep in mind sir, there's ALOT more to making a boosted motor happy then just compression

Cheers

Blake

[2keaton11]

Im also in the process of doing this, I picked up a kit that was designed for a SBC and im running an L92, it was all brand new and got everything complete for to cheap I felt. I hear the compression from a L92 is lower than a typical LS3, is this true? Useful information from a lot of smart guys on here. Who builds a nice set of Turbo Headers, I heard OBX from John 510 and Is there anyone in Oklahoma who can help set it up? I think I would like to finish the car and drive it before I blow the motor up but no problem in having the info advance and going ahead and placing the orders.

[417 Motorsports]

Originally Posted by 2keaton11

Im also in the process of doing this, I picked up a kit that was designed for a SBC and im running an L92, it was all brand new and got everything complete for to cheap I felt. I hear the compression from a L92 is lower than a typical LS3, is this true? Useful information from a lot of smart guys on here. Who builds a nice set of Turbo Headers, I heard OBX from John 510 and Is there anyone in Oklahoma who can help set it up? I think I would like to finish the car and drive it before I blow the motor up but no problem in having the info advance and going ahead and placing the orders.

I'm in southwest mo