May switch intakes-Victor, RPM II or Holley?

VibrantRedGT · Oct 12, 2005

Check sig for combo. Victor maybe overkill since it's a 4000rpm-7000rpm runner type. The Holley is very nice and makes power from 2000-6500. The RPM II maybe a bit perfect for my combo, 1500-6500 rpm.

Any thoughts?

KamiKaziDK · Oct 12, 2005

I think MM&FF did a shootout between almost all the intakes, I'll look for the article, it might be on their webpage too.

VibrantRedGT · Oct 12, 2005

Sig didn't work.

347 9:5:1 Compression, Probe rotating assembly
AFR 185's unported
Comp Custom Cam .533/.544
Probe 1.6 stud mount rockers
Edelbrock RPM Intake
BBK 70MM TB
30Lb injectors
Pro-M 80MM Mass Air
4 Inch homemade powerpipe
1 3/4 Ceramic Long Tube Headers
3 Inch Prochamber
3 Inch cat back
P.M.S Tuned
3:55 gears at the present time, 4:10's later with rear rebuild.

WhiteDevil · Oct 12, 2005

Ive heard nothing but great things about the RPM II. I would go that way, but im gonna get my Performer RPM Lower ported by TMOSS

Grn92LX · Oct 12, 2005

RPM II for this application. I don't think your cam is big enugh to support a victor efi intake, nor do you have near enough compression. You're using probe srs flat tops right? Should be over 10:1 with a 58cc head. What thickness head gasket you using and is the block zero deck?

The rpm with ported lower might work good for your application as well. Though with the right cam, the rpm II will spank it from here to kingdom come The victor is an awesome 347 intake if you have the parts to support it. You're just lacking cam and compression.

VibrantRedGT · Oct 12, 2005

Yes, srs flat tops, 58cc head, zero deck and no clue on head gasket thickness. Just says qty-2, 302ci, graphite.

May just port my lower and be done with it.

Grn92LX · Oct 12, 2005

If its a .039" gasket or close to it, you're in the 10.5:1 range. My heads are 55.6cc with a zero deck block, probe srs flat tops, .039" gasket and my compression came out to 11.045:1. I remember you saying you were @ 9.5:1, I don't see how when our only difference is I have a slightly smaller chamber and i'm 11:1. I have a compression calculator I can Email you.

The ported rpm should work well. Have the upper opened for a 75mm tb too Should have gone more aggressive on the camshaft!

Then if thats not quick enough, throw on the victor with an anderson N91 cam, 4.30 gears shift @ 7,000 and rock on

94GTLaserRC · Oct 12, 2005

From our talks about what YOU want out of your car, I cant see why you would go with something other than the RPM II.

RC

VibrantRedGT · Oct 12, 2005

I didn't want an aggressive cam. I still have A/C and want to drive the wife and kids around every weekend. I didn't want a car that rocks back and forth or obnoxious to be around. Going back to simplier times.

I'll call Toby at CHP and check compression again. I have the balance sheet right here but it doesn't list it. Email the compression caculator.

WhiteDevil · Oct 12, 2005

VibrantRedGT said:
I didn't want an aggressive cam. I still have A/C and want to drive the wife and kids around every weekend. I didn't want a car that rocks back and forth or obnoxious to be around.

Yeah i feel pretty much the same way. I think we will end up with pretty similar combos wheni do mine this summer. I will be fine with 340-350rwhp but better driveability, i mean it is my only car lol.

Grn92LX · Oct 13, 2005

Just give me your Email address, Joe.

I hear you on not wanting an obnoxious car. Oddly enough with my healthy cam, the car drives fine. Your cars gonna make quite abit of noise though with that 3" stuff and 3" mac mufflers

tmoss · Oct 14, 2005

Grn92LX said:
The rpm with ported lower might work good for your application as well. Though with the right cam, the rpm II will spank it from here to kingdom come

Really? Here to kingdom come huh? Seen that done before? ...........I'm up for a challange.

RPMII vs ported RPM on that combo.........

Grn92LX · Oct 14, 2005

tmoss said:
Really? Here to kingdom come huh? Seen that done before? ...........I'm up for a challange.

RPMII vs ported RPM on that combo.........

Did you read ALL of what I said, Tom or no? I said with the right cam

VibrantRedGT · Oct 14, 2005

I'll probably go with the RPMII.

tmoss · Oct 14, 2005

Grn92LX said:
Did you read ALL of what I said, Tom or no? I said with the right cam

He already has his cam - is it the right one?

Redsnk95 · Oct 14, 2005

The RPM II would be my choice for you Joe. The Holley takes a ton of work for it to match up remotely close to the AFR 185 head. AFR's match up really well with the RPM line of intakes and the RPMII would be great for you.

Troy

zenboy99 · Oct 14, 2005

Redsnk95 said:
The Holley takes a ton of work for it to match up remotely close to the AFR 185 head.

Wow, good to know. A friend of mine was going to go with that combo. The systemax is a pretty popular intake, I wonder why it doesn't match up well are the Holley heads alot different then AFR-185's?

tmoss · Oct 15, 2005

zenboy99 said:
I wonder why it doesn't match up well are the Holley heads alot different then AFR-185's?

The Holley intake and AFR heads do not share the same runner centerlines. It's not worth the work, just use an Eddy intake.

DougNuts · Oct 15, 2005

VibrantRedGT said:
I'll probably go with the RPMII.

Good choice. I'm leaning towards the Victor on my 357, but my compression will be a little higher and I plan on reving it to about 6800.

94GTLaserRC · Oct 15, 2005

What are the "right" heads to use with the Holley for a car that is mainly a street car, but with a lot of balz?

RC

May switch intakes-Victor, RPM II or Holley?

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