Holley High Ram/ProFlow FI guys come in
#1
Holley High Ram/ProFlow FI guys come in
Just curious what you guys think of these intakes? I'm looking at maybe getting rid of my LS6/Stock TB and going this route. Car has a F1A on it and it is leveling off before it even reaches 6k, more like about 5800. What hood on a camaro allows you to use these intakes? I have an Ultra Z hood currently.
#6
TECH Enthusiast
LS6 shouldn't be having issues, definitely check for leaks. Also, I would do the Pro Flo XT if its a street car, you would keep most of your cowl intact that way, it would also provide good low end torque.
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#8
8 Second Club
iTrader: (16)
Just curious what you guys think of these intakes? I'm looking at maybe getting rid of my LS6/Stock TB and going this route. Car has a F1A on it and it is leveling off before it even reaches 6k, more like about 5800. What hood on a camaro allows you to use these intakes? I have an Ultra Z hood currently.
the ls6 intake is done by 6200 anyways, so upgrade to a new intake
and I would guess that the Heads and/or intake is probably your restriction.
stock TB isnt helping either...
the Hi Rams are great, but dont expect a bunch of low end torque...they are designed for upper RPMs
3500-8000 dependent on your cam choice...and it will want a much lower LSA than an LS6 intake wants...think 108 or 106....which isnt always supplimentary to a supercharger...
you are going to need a 3" or 4" cowl hood for sure with the Hi-Ram...
#10
Banned
iTrader: (40)
If it's cathedral it likely won't fit unless you start cutting at the windshield or space the k-member down. The cathedral version of the Holley Hi-Rams are 1/4" taller than the LS3 versions (which is the one I had on my previous car and it barely fit, it was like almost touching the windshield).
For the above comment about the Pro Flo ^^^ You still have to cut the cowl a bit and you still lose your wipers with either intake.
Some pics of my old car... It's sitting a little lower than it should, I didn't have motor mounts on in this pic and the motor was just laying on the k-member so it came up about 1/8" higher than the pics.
Attachment 726793
If I remember correctly, I think stangklr got his to fit under his hood in his camaro by spacing down the k-member. Whatever hood that is... I think the VFN 3" hood.
For the above comment about the Pro Flo ^^^ You still have to cut the cowl a bit and you still lose your wipers with either intake.
Some pics of my old car... It's sitting a little lower than it should, I didn't have motor mounts on in this pic and the motor was just laying on the k-member so it came up about 1/8" higher than the pics.
Attachment 726793
If I remember correctly, I think stangklr got his to fit under his hood in his camaro by spacing down the k-member. Whatever hood that is... I think the VFN 3" hood.
#11
8 Second Club
iTrader: (14)
I have the proflo & it defiantly pulls past 5800rpm even with the tiny cam I have in it I shift around 6200-6300rpm. Cant really comment on how it compares to ls6 intake since its the only thing I've ever run on this combo. It doesn't feel like its missing any low end.
#12
if it levels off... it means you have a restriction and your airflow is stalling out...meaning, you cant force more air in that it can flow.
the ls6 intake is done by 6200 anyways, so upgrade to a new intake
and I would guess that the Heads and/or intake is probably your restriction.
stock TB isnt helping either...
the Hi Rams are great, but dont expect a bunch of low end torque...they are designed for upper RPMs
3500-8000 dependent on your cam choice...and it will want a much lower LSA than an LS6 intake wants...think 108 or 106....which isnt always supplimentary to a supercharger...
you are going to need a 3" or 4" cowl hood for sure with the Hi-Ram...
the ls6 intake is done by 6200 anyways, so upgrade to a new intake
and I would guess that the Heads and/or intake is probably your restriction.
stock TB isnt helping either...
the Hi Rams are great, but dont expect a bunch of low end torque...they are designed for upper RPMs
3500-8000 dependent on your cam choice...and it will want a much lower LSA than an LS6 intake wants...think 108 or 106....which isnt always supplimentary to a supercharger...
you are going to need a 3" or 4" cowl hood for sure with the Hi-Ram...
Ive got TF235 heads, I hope they arent a restriction lol.
I appreciate the info guys.
I may go with a super victor and an elbow. Im keeping my options open.
#13
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KP ran 8.8 something with the same cam, an F-1A and an LS6 intake. I'd look to see if it is cracked. Bob
KP ran 8.8 something with the same cam, an F-1A and an LS6 intake. I'd look to see if it is cracked. Bob
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#15
12 Second Club
iTrader: (13)
I have the proflo, and even on an N/A setup, my HP curve is FLAT past 5500, and I pull it all the way to 6800rpm without the power dying off at all. I like the Pro-flo XT manifold, but one thing to keep in mind though is that with the ProFlo, Edelbrock pretty much forces you to run their rails and TB. I don't know if the Holley is the same way. It seems like everyone I have seen has the Holley rails in addition to the intake, so it might be true as well.
#16
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My Hi ram came with rails, and i would look into the mid ram. I would have gotten it if i were not running ls3 heads just for the fact that the intake wouldnt be so close to my windshield
#17
TECH Senior Member
iTrader: (17)
I have the proflo, and even on an N/A setup, my HP curve is FLAT past 5500, and I pull it all the way to 6800rpm without the power dying off at all. I like the Pro-flo XT manifold, but one thing to keep in mind though is that with the ProFlo, Edelbrock pretty much forces you to run their rails and TB. I don't know if the Holley is the same way. It seems like everyone I have seen has the Holley rails in addition to the intake, so it might be true as well.
#18
8 Second Club
iTrader: (14)
I have the proflo, and even on an N/A setup, my HP curve is FLAT past 5500, and I pull it all the way to 6800rpm without the power dying off at all. I like the Pro-flo XT manifold, but one thing to keep in mind though is that with the ProFlo, Edelbrock pretty much forces you to run their rails and TB. I don't know if the Holley is the same way. It seems like everyone I have seen has the Holley rails in addition to the intake, so it might be true as well.