11:1 Compression (LPG 108 Octane) 350/383 Build - Camaro Zone - Camaro Forums and News

Go Back   Camaro Zone - Camaro Forums and News > Camaro & Firebird Tech Forums > V6 Camaro and Firebird Tech

Join Camaro Zone Today
Reply
 
LinkBack Thread Tools
 
Old 07-10-2013, 05:25 AM   #1
New Member
Feedback Score: 0 reviews
 
Join Date: Jun 2013
Location: Gdynia, Poland
Posts: 18
Thanks: 2
Thanked 0 Times in 0 Posts
Question 11:1 Compression (LPG 108 Octane) 350/383 Build

I'm planning my first project motor (350 for 383 from Summit Racing site), a complete build from the block out. To make things easier, I've decided to go with Trick Flow and Scat kits. I'll list the links to specific parts I'm looking at using below.

My question is, does anyone here who knows about LPG and who know how to build 11:1 compression in this set up, have any advice for parts, gaskets, etc that can produce 11:1 compression without having to bore or grind anything? I kinda want to have it all ready out of the box, since I'm overseas and don't know any quality mechanics around here that can appropriately bore or modify engines, blocks and so on.

Here are the components I'm considering:


http://www.summitracing.com/parts/tf...make/chevrolet

http://www.summitracing.com/parts/sc...55bi/overview/

http://www.summitracing.com/parts/na...make/chevrolet

I read that for best compression that flat head pistons are necessary. Any advice on that too? Thanks guys!
__________________

__________________
TGBoleyn is offline   Reply With Quote
Old 07-10-2013, 08:14 PM   #2
Slow'erAss
Feedback Score: 0 reviews
 
Mr. Luos's Avatar
 
Join Date: Nov 2006
Location: Thornton, CO
Posts: 10,199
Thanks: 0
Thanked 241 Times in 191 Posts
Send a message via AIM to Mr. Luos
11:1 will not require 108 octane unless you are running a LOT of timing.
I know there are calculators out there to help determine compression ratio, but I don't have any good ones off the top of my head.

Also, research Scat a little bit. If I recall, they didn't have that great of a reputation a few years back.
__________________

__________________
2008 Trailblazer SS SOLD
LS2, AWD, Red Tint Jewelcoat, and Eff'ing dubs

1999 Pontiac Trans Am WS.6 #1747 SOLD
531.1 RWHP 481.3 FT/Pounds
Mr. Luos is offline   Reply With Quote
Old 07-17-2013, 08:21 PM   #3
New Member
Feedback Score: 0 reviews
 
Join Date: Jun 2013
Location: Gdynia, Poland
Posts: 18
Thanks: 2
Thanked 0 Times in 0 Posts
Thanks for the info! Actually I went with 11:1 cause I thought it would be good for the 108 Octane LPG. What compression would you recommend for 104-112 octane fuels like LPG?
__________________
TGBoleyn is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
383 build RScamaro92 General Camaro & Firebird Tech 4 05-07-2013 06:04 AM
Max Compression Ratio w/ 91 octane Meatwad 4th Gen (1998-02) Camaro and Firebird Tech 7 04-25-2013 02:02 AM
76 350 to 383 questions 94Bird76motor 1st Gen & 2nd Gen (1967-81) Tech 5 05-19-2012 10:31 PM
383 build advice Firebird95Formula 4th Gen (1993-97) Camaro and Firebird Tech 8 05-16-2012 08:31 AM
383 compression petels2 General Camaro & Firebird Tech 8 04-10-2012 02:56 AM


Powered by vBadvanced CMPS v3.2.3


All times are GMT -4. The time now is 04:32 AM.
Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0
Copyright © CamaroZone.com

CamaroZone.com is in no way associated with or endorsed by General Motors or Chevrolet.

Camaro News Delivered to your Email!

Get the latest Camaro news straight to your inbox!

unsusbcribe at anytime with one click

Close [X]