Page 6 of 6 FirstFirst ... 23456
Results 101 to 104 of 104

Thread: Running .035" Squish In 8V Cylinder Head

  1. #101
    turbo addict Turbo Mopar Contributor
    Join Date
    Dec 2005
    Location
    Seattle
    Posts
    7,063

    Re: Running .035" Squish In 8V Cylinder Head

    Quote Originally Posted by zin View Post
    Here's a good read: http://www.msbr.com.br/Documentos/pistonsquish.pdf

    I was looking at it from a "chamber softening" for nitrous standpoint, but the data is good data, regardless of application.

    Mike
    They are doing the opposite! Putting together and order for a soft piston right now btw...
    Brent GREAT DEPRESSION RACING 1992 Duster 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

  2. #102
    Moderator Turbo Mopar Staff Force Fed Mopar's Avatar
    Join Date
    Dec 2005
    Location
    Greenville/Spartanburg SC area
    Posts
    7,557

    Re: Running .035" Squish In 8V Cylinder Head

    I know on my stock swirl head, above 15ish psi there were a lot of lower rpms at 1 degree total timing and I was running 10.6-10.8 on my wideband.
    Rob M.
    '89 Turbo GTC

    2.5 TIII stroker, 568 w/ OBX and 3.77 FD

  3. #103
    turbo addict
    Join Date
    Jan 2006
    Location
    Hazelwood, MO
    Posts
    6,566

    Re: Running .035" Squish In 8V Cylinder Head

    Quote Originally Posted by Force Fed Mopar View Post
    I know on my stock swirl head, above 15ish psi there were a lot of lower rpms at 1 degree total timing and I was running 10.6-10.8 on my wideband.
    Was there any knock count?

  4. #104
    Moderator Turbo Mopar Staff Force Fed Mopar's Avatar
    Join Date
    Dec 2005
    Location
    Greenville/Spartanburg SC area
    Posts
    7,557

    Re: Running .035" Squish In 8V Cylinder Head

    I didn't really log it, but I don't think so. I had to modify the knock threshold for some engine noise and higher boost level. I ran it that way for 3 years after tuning it, never missed a beat, and the pistons look great still. Also the rod bearings looked like new still. So I feel confident in saying it never knocked...

    I do know that if I tried to run it at 11.5-11.8 on my wideband, then I would start seeing the CEL flash in higher boost. 10.6-11.0, no issues.
    Rob M.
    '89 Turbo GTC

    2.5 TIII stroker, 568 w/ OBX and 3.77 FD

Page 6 of 6 FirstFirst ... 23456

Similar Threads

  1. Engine Ported 782 "Swirl" Cylinder Head w/ #4 Coolant Mod - GA
    By Aerosmith145 in forum Parts For Sale
    Replies: 0
    Last Post: 11-10-2010, 02:24 PM
  2. Engine turbo-cylinder head-8 valve-G head
    By midnighttoker in forum Parts For Sale
    Replies: 3
    Last Post: 01-26-2010, 05:09 PM
  3. Engine turbo-cylinder head-8 valve G-head
    By midnighttoker in forum Parts For Sale
    Replies: 82
    Last Post: 01-24-2010, 12:17 AM
  4. Engine turbo-cylinder head-8 valve-G head
    By midnighttoker in forum Parts Wanted
    Replies: 5
    Last Post: 01-23-2010, 11:45 PM
  5. Replies: 3
    Last Post: 03-26-2006, 10:08 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •