A502slo

iTrader: (4)

please let me know what you think about my head flow number

1020 Superflow Bench 3.905 bore

Lift
2.02" Intake 1.57" Exhaust

.100
72 cfm 65 cfm
.200
140 cfm 124 cfm
.300
203 cfm 161 cfm
.400
245 cfm 197 cfm
.500
279 cfm 219 cfm
.550
291 cfm 226 cfm
.600
304 cfm 229 cfm

kizzlecake

iTrader: (7)

pretty solid capable of some good power

Tony Mamo @ AFR

iTrader: (13)

Those are called "real world" numbers....LOL

(Dont be bummed out if you were expecting alot more...)

I'm guessing by the curve the exhaust is without a pipe.

Another key factor is how large the runner is. If its less than 220 cc's the numbers are pretty solid....less than 210cc's they are really solid.....over 230 cc's and there not that impressive....you get my point I'm sure.

Overall though the numbers look very realistic and regardless of runner volume should produce decent power. Also, 1020 benches (depending on how old it is) can read 5-10 CFM less than a 600 bench. If its a reasonably new bench the calibration between the two is very similar (Superflow addressed the discrepancy in their own machines a few years ago after stating for years prior there wasn't a discrepancy....neat "slide of hand"....LOL)

Have a runner cc'ed and you have all the info you really need at this point...

Good luck,
Tony

GrannySShifting

iTrader: (10)

If its legit looks on par for a decent set of stock castings. flow numbers dont tell you much of nothing unless its on a bench with a track record though Im sure youve heard that again and again.

Those numbers from the manufacturer?

TXZ28LS1

iTrader: (5)

looks good. what kind of heads are those?

turbogarrett

iTrader: (8)

Looks almost identical to patriot's advertised flow for their stage 2 ls6 heads. http://www.patriot-performance.com/w...05234&DID=1225

A502slo

iTrader: (4)

Jeff you know who did the heads, set them to Headway, its a shop in Ny and had them flow the heads. Just wanted to make sure i got a good set of heads. Also looking for a 6sp you got one?? Its a performabuilt Level II with a 3600 stall. less then 1k miles on it.
going to get rid of my A4 and do more of this.

quiet_storm98

iTrader: (48)

those are good numbers..what castings were they..also do you know the runner size?

A502slo

iTrader: (4)

Heads are 853
runner 215cc
CC 63

GrannySShifting

iTrader: (10)

Why in the world did you send them out of state instead of one of the local benches we have a benchmark to compare against so those numbers mean something? If you have stock heads from that bench it might give you a clue. The numbers on paper look pretty decent, enough cyl head to make 450+ even on our dyno