got the valve job done on my gsr head finally... (after having it in the shop since may.. finally got done last week) anyway.. i got to flow the head today.. its going on my block tomorrow and gonna race the last race of the season with it on sunday :D

here's my flow #'s... this is on SuperFlow SF-1020.. i always flow everything at 28" h2o

intake (stock/ported).... measured lift.......... Exhaust(stock/ported)
37.1 / 38 cfm ..................... 0.050"..................... 28.2 / 34.4 cfm
81.6 / 79.5 cfm ..................... 0.100"..................... 72 / 73 cfm
120.5 / 124.5 cfm .................. 0.150".................. 117 / 123 cfm
154.2 / 159.3 cfm .................. 0.200".................. 150.5 / 172 cfm
178.5 / 182.3 cfm .................. 0.250".................. 169 / 206 cfm
198.8 / 209.5 cfm .................. 0.300".................. 179 / 220 cfm
216.5 / 231.5 cfm .................. 0.350".................. 183 / 229 cfm
232.5 / 249.5 cfm .................. 0.400".................. 185 / 233 cfm
245/ 260 cfm ........................ 0.450".................. 188 / 236 cfm
253 / 269.5 cfm .................... 0.500".................. 190 / 239.5 cfm

that exhaust really flows!!

here's a couple pics

 

Did you check all of the runners or just one?

 

what did it flow without the valve how many honda heads have you done really wanna flow my head i did .

 

only had time to flow one :-/ i'll be taking it apart for the winter after this race on sunday.. so i'll prolly spend more time on the flow bench with it :D

i've never flow'd a head with no valve in it.

 

good luck sunday Rick. aaaaaalooks like you'll get great #'s from this head.

 

I'd be interested to see what an unported head with an identical valve job would do.

 

yeah that would be interesting..
kedimoto is running a stock port gsr head and making 230whp.. not sure what he's done for valve job.. i know the bottom end is bigbore maybe stroker..

 

good numbers

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Speedz &raquo;</TD></TR><TR><TD CLASS="quote">yeah that would be interesting..
kedimoto is running a stock port gsr head and making 230whp.. not sure what he's done for valve job.. i know the bottom end is bigbore maybe stroker..
</TD></TR></TABLE>

car has made 245whp on the stock port gsr head now

https://honda-tech.com/zero...age=1




Modified by .y2a. at 8:26 AM 1/3/2006

 

car has made 245whp on the stock port gsr head now[/QUOTE]

wow thats good

 

you say stock ports. but what bout valve job? if valve job was done.. what are the specs if ur willing to share?
also u have stock or aftermarket valves?

 

Damn that pretty good. What did you use to flow it? What kind of bench? Homemade set-up? Good luck this weekend

 

SuperFlow SF-1020
here's a pic of it where i was flowing some gsxr1000 itbs i did a while back.

 

hey i was lookin at your sig, noticed you did better at the track with a skunk2 intake mani compared to ITB's. any comment on that?

 

yeah.. if i would have taken more time and tuned the itbs to their potential i'm sure it would have went faster.. i just got frustrated with the "beta" itb rom i was using.. i'd get it tuned, then make a couple runs, then had to re tune it.. come to find out that my itbs were going outta synch.. one race day i got the itbs synched up in my garage.. drove to the track. made a couple runs down the 1/8th and by the 3rd run they were so far outta synch that i was running on 3 cylinders ..
and thats with tuning with crome pro, wbo2 and datalogging.. i hand synched them and drove home.. got the skunk2 from my buddy and decided to build a new set of itbs with better linkage that doesnt "bend" under load.. (when i extended the linkage we Tig welded extension tabs on.. which in turn weakened the metal, allowing it to bend )

i can tell u this.. my ITBS had WAY more midrange torque.. even with its bad state of tune (due to synch problems)..

i ran the itbs the for couple months of the seasons... i was still learning to drive the car.. (notice the 2.0 60's) when i got fed up with the synch problem.. i believe that had i got the synch issues solved, and had more time to learn those drag slicks i could have run 1.8 60's like i was doing with Skunk2 IM, on an open diff. i also think i could have pulled 8.5's in the 1/8th with the ITBs

oh well, thats all gone now.. selling the Hatch.. and working on my DA and boosting it.

 

What size cylinder did you use to flow your head? Did you make your own sliderplate?

 

81mm cylinder and yes i made the slider plate

i dont have anything bigger than 81mm piston'd engines..
one day i might do a sleeved block.. but thats gonna cost me ALOT.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Speedz &raquo;</TD></TR><TR><TD CLASS="quote">81mm cylinder and yes i made the slider plate

i dont have anything bigger than 81mm piston'd engines..
one day i might do a sleeved block.. but thats gonna cost me ALOT.
</TD></TR></TABLE>

hahah yeah I know what you are saying, there is always B20's though!

 

true, but in my neck of the woods there arent any floating around so i'd have to pay more to have one shipped to me.. either way.. not convenient for me to get my hands on cheaply LOL..

my wife and i recently had a baby girl.. so i dont have a whole lot of extra $$$ floating around anymore that and time seems to be hard to find these days..

gonna get outta the all motor building for myself for a while.. i've got friends i'm building for.. but i've got my fingers in too many pots to continue with my race hatch.. in order to be competetive, i'd have to have alot more money than i have now..
just waiting for wife to finish her nursing degree to get her RN and then i'll finish my engineering degree up when she can support us both with her RN then i'll be able to persue my allmotor dreams