Posted By: Bob_Spelic
how big of a valve - EZ-1 heads? - 09/29/09 05:20 PM
can the EZ-1 heads support a larger valve size than the 2.14 and 1.81?
If so how much bigger?
bob spelic
If so how much bigger?
bob spelic
how big of a valve - EZ-1 heads?
Posted By: RobR
Re: how big of a valve - EZ-1 heads? - 09/29/09 05:24 PM
No need to...350 cfm with the present intake valve 
Posted By: moparniac
Re: how big of a valve - EZ-1 heads? - 09/29/09 05:48 PM
My Ez's were 2.19
Posted By: Bob_Spelic
Re: how big of a valve - EZ-1 heads? - 09/29/09 07:48 PM
I was wrong in the original pst. Mine are 2.19 and 1.81.
Mine flow about 330, but the exhaust seems really bad at about 215.
bob
Mine flow about 330, but the exhaust seems really bad at about 215.
bob
Posted By: RyanJ
Re: how big of a valve - EZ-1 heads? - 09/29/09 09:34 PM
I have Ferrea 6000's in mine...... 2.19/1.81
Flow in the 350s @ .700" with mild blending.
Flow in the 350s @ .700" with mild blending.
Posted By: 68roadrunner
Re: how big of a valve - EZ-1 heads? - 09/30/09 01:21 AM
Quote:
I have Ferrea 6000's in mine...... 2.19/1.81
Flow in the 350s @ .700" with mild blending.
do you see a flow improvement with the ferrea's over the manley?
Posted By: RyanJ
Re: how big of a valve - EZ-1 heads? - 09/30/09 01:54 AM
I never use Manleys, All I use @ the shop is Ferrea. They have a 5.40" INDY SR/440-1/EZ specific valve in the 6000 series & that's what I used W/ a 33 degree back cut, & 5 angle VJ looking for low/mid lift #s. My heads are 236 @ .300", 326 @ .500"
I don't recall my exact exhaust #'s but I remember they were not great, peak was ok but low/mids were shoddy, although I don't port/flow much BB stuff, the #'s were weak compared to our SB heads. Peak was in the high 240's I think with no tube. I've made over 800 HP with a 1.60 exhaust valve flowing 250 cfm, so exhaust flow is a bit overated IMO.
I don't recall my exact exhaust #'s but I remember they were not great, peak was ok but low/mids were shoddy, although I don't port/flow much BB stuff, the #'s were weak compared to our SB heads. Peak was in the high 240's I think with no tube. I've made over 800 HP with a 1.60 exhaust valve flowing 250 cfm, so exhaust flow is a bit overated IMO.
Posted By: 68roadrunner
Re: how big of a valve - EZ-1 heads? - 09/30/09 01:59 AM
Quote:
I never use Manleys, All I use @ the shop is Ferrea. They have a 5.40" INDY SR/440-1/EZ specific valve in the 6000 series & that's what I used W/ a 33 degree back cut, & 5 angle VJ looking for low/mid lift #s. My heads are 236 @ .300", 326 @ .500"
I don't recall my exact exhaust #'s but I remember they were not great, peak was ok but low/mids were shoddy, although I don't port/flow much BB stuff, the #'s were weak compared to our SB heads. Peak was in the high 240's I think with no tube. I've made over 800 HP with a 1.60 exhaust valve flowing 250 cfm, so exhaust flow is a bit overated IMO.
thanks for the info. i have the -1 cnc 325 head, just looking to make it better when the time comes. sorry to highjack.
Posted By: nss guy
Re: how big of a valve - EZ-1 heads? - 09/30/09 10:00 PM
2.25 in my little ez 295's