[Gmecm] TPI vs TBI & others

[Beau Blankenship]

Well, it sounds like you have a great setup in your van. I never meant to
imply that the TBI is in any way inferior to the TPI. Nor did I mean that
the TBI could not be made to work very well in a daily driver/racecar/
4x4/van... I only meant to debate the statement that the switch to TPI would
cause a loss of torque. I don't even recall who made that statement. Yes, I
know that the cam made a lot of difference in my case, but the difference in
drivability cannot be attributed solely to the cam (in my case). I don't
even claim to have put my truck on a dyno and run numbers between multiple
combinations. I don't have access to that kind of thing. All I can say is
what my truck drives like with two different injection systems on two
somewhat different engines. I could comment on the Edelbrock 600cfm I had on
there before I switched to the TBI, but that would be inappropriate on this
list. 

So did you mean that you have had 7 different engine/induction combinations
in your daily driven(?) van? And pulled the same 24' boat with those
combinations? Or is that just engines you've built and tested on a dyno?

Beau


-----Original Message-----
From: gmecm-bounces at diy-efi.org [mailto:gmecm-bounces at diy-efi.org] On Behalf
Of Chris Reynolds
Sent: Thursday, August 31, 2006 10:37 AM
To: Rick McLeod; gmecm at diy-efi.org
Subject: Re: [Gmecm] TPI vs TBI & others

350, 8.5:1 compression, Swirl Ports, Peanut Roller cam, Edelbrock 3704
Intake, Stock TBI unit, Full length headers 1 1/2" x 3", 2.5" Y into single
3" cat, single 3" in/ Dual 2 1/2" out muffler.  700r4 with the stock 1,800
rpm converter, 4,500 RPM WOT shifts, and 3.08 gears.  DIY eprom tuning on
the EBL.
   
  The 5,500 lbs Van accelerating 0-90 with TBI.  It has plenty of snap and
pulls my 24 foot boat easily.
   
  http://www.youtube.com/watch?v=UEeZ5ruugWA&mode=related&search=
   
  http://www.youtube.com/watch?v=PX5Av4pS1RA&mode=related&search=
   
  Its TBI
   
  http://www.youtube.com/watch?v=x-rApoA_BDc
   
  On a side note, to the man that switched to TPI along with the cam swap.
The 12* @ .050 cam duration less made alot more difference than the TBI to
TPI did.   That is somewhere around 30 ft/lbs @ 1,500 rpm or so just from
the cam.
Rick McLeod <dunvegan at sbcglobal.net> wrote:
  and as I've said before, the 3 I am intamately familiar with will snap you
head at low rpm romps, I'll take TPI around town any day, love my daily
driver IROC!


----- Original Message ----
From: Beau Blankenship 
To: gmecm at diy-efi.org
Sent: Thursday, August 31, 2006 9:13:09 AM
Subject: RE: [Gmecm] TPI vs TBI & others


snip'd...

I would never trade the TPI for another TBI in my daily driver. 

snip'd 
_______________________________________________
Gmecm mailing list
Gmecm at diy-efi.org
Subscribe: http://lists.diy-efi.org/mailman/listinfo/gmecm
Main WWW page: http://www.diy-efi.org/gmecm


 		
---------------------------------
Stay in the know. Pulse on the new Yahoo.com.  Check it out. 
_______________________________________________
Gmecm mailing list
Gmecm at diy-efi.org
Subscribe: http://lists.diy-efi.org/mailman/listinfo/gmecm
Main WWW page: http://www.diy-efi.org/gmecm