Compare these 2

Pistol Pete · 03-09-2014, 09:34 AM

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

U need a carburetor..lol

pbp1 · 03-09-2014, 10:46 AM

CFM of a Q-jet vs CFM of a TPI throttle body.

Ed Wright · 03-09-2014, 10:50 AM

Quote:

Originally Posted by pbp1

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

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

Pete
Two completely different animals.

jim powers · 03-09-2014, 03:40 PM

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

Pete, listen to JP both his Camaro's were very fast. Text me later to talk.

pistol paul · 03-10-2014, 08:43 AM

have the chief put the supertune to it

Greg Hill · 03-10-2014, 05:56 PM

The manifold is not good on the F.I. Car.

03-09-2014, 09:34 AM	#1
Pistol Pete VIP Member Join Date: Oct 2003 Location: Punta Gorda Isles, Fl. Posts: 1,619 Likes: 3,312 Liked 762 Times in 205 Posts	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. __________________ "Pistol" Pete Dutko

03-09-2014, 09:43 AM	#2
James Perrone VIP Member Join Date: Feb 2004 Location: LONG ISLAND N.Y. Posts: 1,655 Likes: 3,315 Liked 1,775 Times in 416 Posts	Re: Compare these 2 U need a carburetor..lol __________________ james perrone 1290 STK

03-09-2014, 10:46 AM	#3
pbp1 Junior Member Join Date: Mar 2013 Posts: 80 Likes: 12 Liked 27 Times in 6 Posts	Re: Compare these 2 CFM of a Q-jet vs CFM of a TPI throttle body.

03-09-2014, 11:10 AM	#5
ken robinson Member Join Date: Dec 2001 Location: tomsriver nj Posts: 470 Likes: 70 Liked 203 Times in 82 Posts	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 .

03-09-2014, 11:51 AM	#6
Signman Senior Member Join Date: Oct 2003 Location: Lower Slower Delaware Posts: 535 Likes: 22 Liked 269 Times in 99 Posts	Re: Compare these 2 Pete Two completely different animals. __________________ Frank Ferrucci I/SA 1271 "Be Thankful for the Gifts You are Given"

03-09-2014, 03:40 PM	#7
jim powers Member Join Date: Nov 2001 Location: manville nj Posts: 357 Likes: 192 Liked 13 Times in 10 Posts	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

03-09-2014, 04:06 PM	#8
Joe DeMarzo Senior Member Join Date: Oct 2002 Location: Mahopac, NY Posts: 666 Likes: 48 Liked 113 Times in 9 Posts	Re: Compare these 2 Pete, listen to JP both his Camaro's were very fast. Text me later to talk. __________________ Joe DeMarzo 1317 STK

03-10-2014, 08:43 AM	#9
pistol paul Junior Member Join Date: Jan 2014 Posts: 6 Likes: 0 Liked 0 Times in 0 Posts	Re: Compare these 2 have the chief put the supertune to it

03-10-2014, 05:56 PM	#10
Greg Hill VIP Member Join Date: May 2006 Location: Louisville , KY Posts: 1,995 Likes: 68 Liked 279 Times in 68 Posts	Re: Compare these 2 The manifold is not good on the F.I. Car. __________________ Greg Hill 4171 STK