Single Turbo Discussion Area for discussing single turbo RX-7's.

Gt40 Or Gt42

Old 02-19-2004, 11:01 AM
  #1  
Senior Member
Thread Starter
 
Join Date: Jun 2003
Posts: 161
Default

I'm at the stage now where I'd have to select a turbo for my 20b FD. Do you guys know if a gt42 will fit in an FD? I think gt40 will fit, but I'm not sure about gt42. Thanks.
an_juan is offline  
Old 02-19-2004, 11:04 AM
  #2  
Senior Member
 
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Default

Get the GT42 BB with the big compressor wheel.



It will fit.
TYSON is offline  
Old 02-19-2004, 11:28 AM
  #3  
Senior Member
 
Join Date: Jan 2003
Location: union, new jersey
Posts: 8,079
Default

if it doesnt fit cut out part of the chassis
FikseRxSeven is offline  
Old 02-19-2004, 11:58 AM
  #4  
Senior Member
Thread Starter
 
Join Date: Jun 2003
Posts: 161
Default

seriously, the gt42 has a 5 inch outlet for a downpipe. I can't fathom the need for a downpipe that big. I like it's flow, but damn.......

I don't want to trim the shock tower....though it won't be the only thing that's been cut.
Attached Thumbnails Gt40 Or Gt42-imgp0790.jpg  
an_juan is offline  
Old 02-19-2004, 12:20 PM
  #5  
Senior Member
 
Join Date: Jan 2003
Location: London, Ontario
Posts: 2,871
Default

So use a 4" downpipe.
TYSON is offline  
Old 02-19-2004, 12:28 PM
  #6  
Senior Member
 
Join Date: Oct 2001
Location: Peoria, AZ
Posts: 10,906
Default

Just use a smaller Dp as Tyson suggested. Any more pixs of your setup?
1Revvin7 is offline  
Old 02-19-2004, 01:59 PM
  #7  
Senior Member
Thread Starter
 
Join Date: Jun 2003
Posts: 161
Default

more to come, and lots of.
an_juan is offline  
Old 02-19-2004, 05:07 PM
  #8  
Senior Member
 
Join Date: Jul 2001
Location: oHIo
Posts: 273
Default

Flow it out....do the math. That is the only way to find out short of trial and error.
Badog is offline  
Old 02-20-2004, 01:49 PM
  #9  
Senior Member
 
Join Date: Dec 2002
Location: Elkhart, Indiana
Posts: 139
Default

Give Sean at A-Spec a call regarding your question. He's done a lot of research into this.

630-543-8890

-Nic
rx-7addict is offline  
Old 02-20-2004, 01:56 PM
  #10  
Senior Member
 
Join Date: Oct 2002
Location: Merrick NY / St.John's Uni Jamacia, NY
Posts: 1,073
Default

so thats what the back of the dash looks like mmm thanks for the new view



can u run the downpipe out and under the side of the car instead of all the way back! imagine the flames
MazdaMike is offline  

Thread Tools
Search this Thread
Quick Reply: Gt40 Or Gt42


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.