Pro toplines vs. thumpers

UnderPressureGT · Jun 25, 2005

im glad you have good experience with mac, but anyone else who had their ehaders and H pipes can tell you thatt he ehaders are disposible (never will line b akc up again without being a whore), and the H pipes leak no matter how tight they are.....

Out of business or not, these heads flow damn near close to afr 185's, meaning that they flow better then the 165's, a 1300 dollar or so set of heads???

Curse · Jun 25, 2005

UnderPressureGT said:
Out of business or not, these heads flow damn near close to afr 185's

ms93gt · Jun 25, 2005

Honestly even if they did flow as great as you guys "claim" theres not proof. Protoplines site only shows the intake, or exhaust I forget which one. Until I see real #'s I will consider them junk. Also please don't compare them to afr's as afr's are proven.

willys1 · Jun 25, 2005

ms93gt said:
Honestly even if they did flow as great as you guys "claim" theres not proof. Protoplines site only shows the intake, or exhaust I forget which one. Until I see real #'s I will consider them junk. Also please don't compare them to afr's as afr's are proven.

UnderPressureGT · Jun 26, 2005

ms93gt said:
Honestly even if they did flow as great as you guys "claim" theres not proof. Protoplines site only shows the intake, or exhaust I forget which one. Until I see real #'s I will consider them junk. Also please don't compare them to afr's as afr's are proven.

Actually, their website shows BOTH intake and exhaust...

Intake Port Test Data @28" of water
.100 .200 .300 .400 .500 .600 .700
72 154 208 254 271 274 276

Exhaust Port Test Data @28" of water
.100 .200 .300 .400 .500 .600 .700
60 121 159 184 193 199 202

and this is straight from AFR's website...

AFR 165's

AFR 185's

The image may come out blurry... right click it and go to View Image.... you can clearly see that the ptls flow much more then the 165's and close with the 185's...

ALMOSTFINISHED · Jun 26, 2005

UnderPressureGT said:
Actually, their website shows BOTH intake and exhaust...

Intake Port Test Data @28" of water
.100 .200 .300 .400 .500 .600 .700
72 154 208 254 271 274 276

Exhaust Port Test Data @28" of water
.100 .200 .300 .400 .500 .600 .700
60 121 159 184 193 199 202

and this is straight from AFR's website...

AFR 165's

AFR 185's

The image may come out blurry... right click it and go to View Image.... you can clearly see that the ptls flow much more then the 165's and close with the 185's...

Thanks for posting the chart. If I can get my hands on a set I thinkI'm gonna go this route.

Nick

danchamp · Jun 26, 2005

im running ptl 215 my engine made 418hp/ 427tq to the rear wheels with a bad tune. a/f ratio was way rich. also im using a suck face carb. with a better carb and and some tuning i dont see why i wont make 430 or so. maybe a little more now that my intake is ported. my times are 11.56 at 120 1.7 60 ft in a 3600lb car hope this helps some

goinbigger · Jun 26, 2005

I'd really like to test a set of these out. Flow looks pretty damn good.

Curse · Jun 26, 2005

Heres the link I was talking about.
http://www.stangpro.com/html/projects/84gt_files/cyclone/cyclone-closerlook.html

willys1 · Jun 26, 2005

Give it a few more weeks,Im sure Joe's gonna wreck his car.Then you can get the set on his new motor pretty cheap,,h@ll,you mite be able to get his whole motor at a good price

1990Coupe · Jun 26, 2005

ms93gt said:
Honestly even if they did flow as great as you guys "claim" theres not proof. Protoplines site only shows the intake, or exhaust I forget which one. Until I see real #'s I will consider them junk. Also please don't compare them to afr's as afr's are proven.

Im sorry looks like theres proof now?

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