Lord_fahrquhar 2,580 Posted December 23, 2017 On 06/11/2017 at 4:26 AM, Outback Jack said: Im still trying to figure out how he's gonna dig a hole with an esculator.......... Sent from my GT-S7583T using Tapatalk Bucket wheel excavator would go close. But I can loan him a liebherr 996. Share this post Link to post Share on other sites
ando76 4,354 Posted March 14, 2018 Went back to the flow bench today with a new port and chamber design. It was based on the stuff we learnt from doing the last 3 test ports, you know the ones that caused all the conjecture. Anyway I had a c1 head sitting here that had stainless ferrea valves (1.84&1.5) and all the guides and seats done. It just needed porting. I've had it for years and decided now was the time. Here are the results. Pretty damn impressive I must say, especially considering how small the valve is. Then have a look at the port window, yep it's stock. ZERO welding or bogging done to the port. None. Before the naysayers and the like ask, no I'm not sharing what the x section is, nor the chamber shape. Please keep in mind (as I've said numerous times) Anthony's bench flows 10cfm below name benches. That's 243cfm of flow through a 1.84 valve and a stock port window!!! Smallest port doing the biggest job. Look at the mid lift figures. Solid as a rock. p.s. Please ignore the valve size on the test sheet. Anthony didn't change it. Sent from my iPad using Tapatalk 5 Outback Jack, XPT, Valvebouncer and 2 others reacted to this Share this post Link to post Share on other sites
broken-wheel 659 Posted March 14, 2018 I got 247.16 with a 1.91 valve and run off the mill 3 angle job without touching the chamber of an unmarked head, 39mm cross section on the face of the runner so I guess that's a pretty good flowing head for a stock port size and valve size can you talk about the seat or how the valve was cut ? 1 CHESTNUTXE reacted to this Share this post Link to post Share on other sites
ando76 4,354 Posted March 14, 2018 What was the low and mid lift figures on that 1.91" head? That's good peak flow. Where did it make that peak? Seat cut is cams basic seat cut. Valves are back cut a fraction with the standard ferrea neck down. Share this post Link to post Share on other sites
broken-wheel 659 Posted March 14, 2018 that was at .600, never went above that as I thought it might not clear my head and don't want to notch pistons it scaled quite well from .300 to .600 but was stupid from .200 to .300 ...wish I could had that from .500 to .600 ! were the valves cut from a bigger one? mine were 2.1" Chev valves cut to 1.910, seats were cut by UMR so I doubt they are anywhere near good but I knew that and just wanted to see what was what 1 Outback Jack reacted to this Share this post Link to post Share on other sites
ando76 4,354 Posted March 14, 2018 Clevo intakes cut down, chev exhausts cut down. 2 Outback Jack and CHESTNUTXE reacted to this Share this post Link to post Share on other sites
ando76 4,354 Posted May 9, 2018 Back at the flow bench this arvo with the cylinder head for HADES, the dedicated e85, 4 barrel customer engine I'm building. Pleasing results and will be a great match for the Aussiespeed 4 barrel manifold. Should make some solid numbers. 5 Arrow18, Thom, Outback Jack and 2 others reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted June 17, 2018 Test port for the boosted head has gone over the old NAT ASP head total figure by 500lift already. Its 22cfm better by 200th aswell. Wonder if he had been playing with xflows for 20 years how they would flow,seeing this is his 2nd ever. 3 deankxf, CHESTNUTXE and Valvebouncer reacted to this Share this post Link to post Share on other sites
deankxf 20,287 Posted June 17, 2018 were scrap heads sacrificed for to see where the water lives? or is this a result of keeping port size and having great skill in the valve/pocket area 3 Valvebouncer, CHESTNUTXE and slydog reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted June 17, 2018 See where water is and how much material is where and to profile the port. He has done lots of Chevy Ford Holden and LS stuff but only 2 xflows. This been the 2nd. My NAT ASP head the first. I know local shop just sent a Iron Windsor head over to Kuuntz in the US so they can do the same then CNC duplicate for future use. Smart thinking imo. 2 CHESTNUTXE and deankxf reacted to this Share this post Link to post Share on other sites
deankxf 20,287 Posted June 17, 2018 yeah that is smart thinking, i'm a big fan of the CNC porting with this in mind(wonder how much they allow for core shift?, the black clevo heads were better for porting for this reason) 2 CHESTNUTXE and slydog reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted June 17, 2018 Core shift is a concern for sure hence the chopping a couple up and keeping a average not chasing to go as far as possible. That and boost will aid in any HP shortcomings👊🏽 2 scottly and deankxf reacted to this Share this post Link to post Share on other sites
ando76 4,354 Posted June 19, 2018 Good gains. Might be his second only x flow head but clearly he is no amateur. At the end of the day they are all just ports and require similar things. If you have a flow bench, time on your hands, some skill and a customer willing to pay for that time - well you will get results. Looking forward to seeing how it goes on the car. 2 Outback Jack and Slow250XC reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted July 12, 2018 Testing testing testing...low lift mid lift up some more and couple more numbers up top.Room to move still 🤛 1 deankxf reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted July 20, 2018 Starting on the new head next week. Testing has shown him what he wanted to see and plan for. Black top dyno showed it made "real hp" even though it lacked epic cfm figures last time so this time will be no different im sure. 2 Slow250XC and deankxf reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted August 30, 2018 Pic of the port... Share this post Link to post Share on other sites
SPArKy_Dave 8,871 Posted August 30, 2018 11 hours ago, slydog said: Pic of the port... 1 slydog reacted to this Share this post Link to post Share on other sites
slydog 7,873 Posted August 30, 2018 Sorry finished port I meant Share this post Link to post Share on other sites
SPArKy_Dave 8,871 Posted August 30, 2018 11 hours ago, slydog said: Sorry finished port I meant It's still funny! 1 slydog reacted to this Share this post Link to post Share on other sites
deankxf 20,287 Posted August 31, 2018 port matched? 3 1 Fingers, CHESTNUTXE, slydog and 1 other reacted to this Share this post Link to post Share on other sites
FORD_MAN 1,026 Posted September 14, 2018 Seeing the high port head thread made me & CNC xflow head porters made me remember this, Copied from CHI's facebook page a few years ago 2 matt_lamb_160 and CHESTNUTXE reacted to this Share this post Link to post Share on other sites
ando76 4,354 Posted September 15, 2018 That's a cracker of a head. Look at the low and mid lift gains. Impressive. Would be lotsa fun. Share this post Link to post Share on other sites
slydog 7,873 Posted September 18, 2018 Obviously a true hi port with great big holes. But its whats needed on my combo. 2 deankxf and matt_lamb_160 reacted to this Share this post Link to post Share on other sites
matt_lamb_160 252 Posted September 18, 2018 Great comparison in that second picture. What are the flow figures for it now? 1 deankxf reacted to this Share this post Link to post Share on other sites