[Gmecm] TPI vs TBI & others

[William Lucke]

Is this compared to similarly built engines with TPI intakes or stock 
engines with TPI's?

TPI's are MUCH more sensitive to cam selection than short runner 
manifolds (like dual plane TBI setups).


Will


> From: Chris Reynolds <red83brick at yahoo.com>
> 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