GN1 R or TA aluminum ported head flow numbers

[ttypewhite]

I am curious to see what guys have gotten out of these heads fully ported. Please post your numbers or flow sheets. Also please keep this thread on track, this is not a Champion vs TA head competition, or turn around time etc. Just raw data.

 

[Mr.Spool]

Also please keep this thread on track, this is not a Champion vs TA head competition, or turn around time etc. Just raw data.

that would be great as both heads can get just about get any job done.

 

[Boost231]

I'll go first. TA SI heads

Sent from my SM-G950U using Tapatalk

 

[ronviper]

CHAMPION GNR HEADS

INTAKE EXHAUST

100 66.3 100 50.8
200 113.4 200 113.4
300 189.7 300 156.8
400 238.5 400 182.3
500 260.7 500 194.0
600 261.7 600 199.3

 

[turbo nasty]

TA SI's
INT .500 249 Exh .500 201

 

[BEATAV8]

GN1R's
intake 268 @ .500
exhaust 214 @ .600 w/pipe

 

[ronviper]

Nice numbers Steve, how were they from 300 to 500 lift?

 

[greeneyegi]

TA SI heads

 

[ronviper]

It seems both heads flow very similar, you can not go wrong with either TA or CHAMPION!!!!

 

[BEATAV8]

Nice numbers Steve, how were they from 300 to 500 lift?

Intake is at:
184@.300
240@.400
261@.450

 

[87GN_Bart]

Steve your middle numbers are very impressive to me, should make good power with the right compression, cam and turbo combo. Congrats.

 

[ttypewhite]

The ol boy's GN1 R heads and T&D jessel style rockers showed up today from Champion in one week!!!

 

[ronviper]

I would like to "THANK THE CHAMPION RACING HEADS GROUP" the beautiful work and awesome turn around time to get these heads. Tom has been in the hospital with heavy surgery and i WISH HIM A SPEEDY RECOVERY. Thanks Tom to you and your crew best wishes from Ron and family.

 

[proptop]

Sir,
Are the heads in the photos ported or as cast? In addition any flow numbers and cost to duplicate?
Thanks,
Bob

 

[87GN_Bart]

The heads are CNC ported by Champion and flow excellent for my needs, machined, ported , assembled and shipped within 1week.

 

[87GN_Bart]

The cost would depend on what springs, retainers,valves, porting etc you want. Call Champion at ( 1-386-446-4488) if you would like to get a price, i was very pleased with the price i paid.

 

[~JM~]

The cost would depend on what springs, retainers,valves, porting etc you want. Call Champion at ( 1-386-446-4488) if you would like to get a price, i was very pleased with the price i paid.

No new web-site yet?

 

[Ttype6]

The heads are CNC ported by Champion and flow excellent for my needs, machined, ported , assembled and shipped within 1week.

What material are the exhaust seats made from?

 

[ronviper]

The intake and exhaust are Ferrea 2.0 intake 1.60 exhaust.

 

[Ttype6]

The ol boy's GN1 R heads and T&D jessel style rockers showed up today from Champion in one week!!!

Do you know what material the exhaust seats are made from?