CLASS RACER FORUM

CLASS RACER FORUM (https://classracer.com/classforum/index.php)
-   Stock and Super Stock Tech (https://classracer.com/classforum/forumdisplay.php?f=4)
-   -   Compare these 2 (https://classracer.com/classforum/showthread.php?t=52155)

Pistol Pete 03-09-2014 09:34 AM

Compare these 2
 
I want to compare these 2:

305 Stocker Motors: 1. Has a Carb QJ 207 2. Has Fuel Inj. TPI set-up

Just let's say both have the same H.P.

Carb motor goes 112 mph TPI goes only 109 . WHY ???

Should the shift points be different on the TPI motor ??
If so, Higher or Lower than the Carb Motor ??
Should the Stall on the Converter be Different ? Higher or Lower ?

What other things can make the TPI get some MPH ??
60 foot times are very close to being the same too.

James Perrone 03-09-2014 09:43 AM

Re: Compare these 2
 
U need a carburetor..lol

pbp1 03-09-2014 10:46 AM

Re: Compare these 2
 
CFM of a Q-jet vs CFM of a TPI throttle body.

Ed Wright 03-09-2014 10:50 AM

Re: Compare these 2
 
Quote:

Originally Posted by pbp1 (Post 423705)
CFM of a Q-jet vs CFM of a TPI throttle body.

And those long, small intake tubes. Like really long header primaries. Those TPI engines don't run up high. Take some gear out of the TPI car and it will likely run quicker too. On my chassis dyno, I never saw one that wasn't done by about 5500 RPM.

ken robinson 03-09-2014 11:10 AM

Re: Compare these 2
 
Pete , were are your shift rpms (5500 ?) , think about what Ed stated , get some primary addons to make those tubes longer . .If you already have tethers made you can always sale them .

Signman 03-09-2014 11:51 AM

Re: Compare these 2
 
Pete
Two completely different animals.

jim powers 03-09-2014 03:40 PM

Re: Compare these 2
 
shift points on carb motor higher
488 gear in tpi set up, 513 in carb motor
5000/5200 converter in tpi motor, 5500 in carb set up, based on my 2 old camaros, they seemed to run prety well

Joe DeMarzo 03-09-2014 04:06 PM

Re: Compare these 2
 
Pete, listen to JP both his Camaro's were very fast. Text me later to talk.

pistol paul 03-10-2014 08:43 AM

Re: Compare these 2
 
have the chief put the supertune to it

Greg Hill 03-10-2014 05:56 PM

Re: Compare these 2
 
The manifold is not good on the F.I. Car.


All times are GMT -4. The time now is 04:15 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.