Re: INDY R-1 cam anybody??
[Re: 70gtx1]
#263571
03/23/09 05:29 PM
03/23/09 05:29 PM
|
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
Old School
super stock
|
super stock
Joined: Mar 2009
Posts: 1,169
Virginia Beach, VA
|
i have a 500" motor in 3 of my street cars.i use indys r-1 cam in all of them.they do really well on the street.they have very good low end,and good top end.they idle really good too,900-1000rpm.also they are pretty easy on parts,like rockers and lifters.i do however have to change valve springs often,maybee every 1000-1500 miles.if you let them go,you will float the valves and break one of them.it happend to me about 4 months ago.it broke the head of a exhaust valve.i was wondering about the cm-1 cam on one of my 500" motors.i have a spare from changing to a cm-2 cam in my 572" motor.you say you did not like it?can you tell me more about how it did,and what you did not like?
68 cuda formula S 588" bb 5sp
70 CUDA CONVERT 500" 5SP (SUBLIME)
70 CUDA CONVERT 500" 5SP (PLUMCRAZY):TOO MUCH HORSEPOWER, IS ALMOST ENOUGH!
|
|
|
Re: INDY R-1 cam anybody??
[Re: nss guy]
#263574
03/23/09 08:34 PM
03/23/09 08:34 PM
|
Joined: Nov 2003
Posts: 10,384
Upstate NY
Bigcube
I Live Here
|
I Live Here
Joined: Nov 2003
Posts: 10,384
Upstate NY
|
Why not call a cam guru like Fast68Plymouth and have him spec you a custom one that will give you the properties you are looking for?
Jim
|
|
|
Re: INDY R-1 cam anybody??
[Re: AndyF]
#263576
03/23/09 10:07 PM
03/23/09 10:07 PM
|
Joined: Aug 2008
Posts: 69
racine,wi
70gtx1
OP
member
|
OP
member
Joined: Aug 2008
Posts: 69
racine,wi
|
Quote:
That is a much bigger cam than I'd ever use in a street driven 451 motor. I have a 266/272 cam in my 505 motor that makes about 800 hp and even that is a little too radical of an idle for street use in my mind. If I was driving it on the street I'd probably back my combo down to something in the 260 range. For a 451 I'd drop even more than that.
Try a Comp street roller like a XR292 or XR298. With good heads and good compression you should be 700+ hp and it will still idle halfway decent.
I was thinking the same thing about those 2 that you mentioned. My only concern is that i might have too much cylinder pressure, causing the car to ping like crazy driving it on the street.
|
|
|
Re: INDY R-1 cam anybody??
[Re: AndyF]
#263579
03/24/09 07:00 PM
03/24/09 07:00 PM
|
Joined: Aug 2008
Posts: 69
racine,wi
70gtx1
OP
member
|
OP
member
Joined: Aug 2008
Posts: 69
racine,wi
|
Quote:
That is a much bigger cam than I'd ever use in a street driven 451 motor. I have a 266/272 cam in my 505 motor that makes about 800 hp and even that is a little too radical of an idle for street use in my mind. If I was driving it on the street I'd probably back my combo down to something in the 260 range. For a 451 I'd drop even more than that.
Try a Comp street roller like a XR292 or XR298. With good heads and good compression you should be 700+ hp and it will still idle halfway decent.
Well after talking with a few places and people, ive decided on the comp cams xr298r grind, the same one you used in the 505 stroker buildup. This will be a lot more street friendly that my cm-1 cam and the R-1 cam i was considering. It should still make great power and run well at the track.
|
|
|
Re: INDY R-1 cam anybody??
[Re: AndyF]
#263582
03/24/09 09:45 PM
03/24/09 09:45 PM
|
Joined: Aug 2008
Posts: 69
racine,wi
70gtx1
OP
member
|
OP
member
Joined: Aug 2008
Posts: 69
racine,wi
|
Quote:
I have that XR298 sitting out on the shelf if you're interested. It has a little dyno time on it but should be ready to slide in and go. Mine was ground on 108 centers and I think we ran it installed on 106.
I ran it with 1.60 rocker arms and it made great power in my 505 and had a healthy lope at idle. Might be a tad bit more radical sounding in a 451 but that will depend on your exhaust system. That cam was making right around 680 hp in my 505 with the MP 452 heads. With my EZ heads that cam would've gone about 750 hp in my 505.
Darn, your a few hours late, I probably would of offered ya something for it. Well, i already called comp cams and they are grinding one for me. The tech guy recommended i have mine ground on a 110 center and install it at 106. He said the 110 center will give me a little better idle quality. And I'd like to build a 500 cube stroker in the future, so I could probably use this too for it.
Like I said, this is not a daily driver, and it should be way nicer on the street than my cm-1 cam. For exhaust I run 2 inch hedman headers with 3 1/2 of the headers to super 44 flowmasters, with 3 inch tailpipes, it should sound wicked. I referenced your motor when i spoke to them and they remebered the cam. Thanks for all your input
|
|
|
Re: INDY R-1 cam anybody??
[Re: 70gtx1]
#263583
03/25/09 01:36 AM
03/25/09 01:36 AM
|
Joined: Jan 2003
Posts: 31,042
Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 31,042
Oregon
|
Yep, the XR298R isn't in the catalog but the lobes are. So it is really just a semi-custom cam. They make the XR298R for other engines, just don't offer it in the catalog for the big Mopar for some reason. Let us know how it works out for you, it should be a good combo. Link to article where I used that cam: http://www.moparmusclemagazine.com/techa...lock/index.html
Last edited by AndyF; 03/25/09 01:39 AM.
|
|
|
Re: INDY R-1 cam anybody??
[Re: Plumcrazyracing]
#263584
03/26/09 03:02 AM
03/26/09 03:02 AM
|
Joined: Dec 2006
Posts: 4,647
aotearoa
rebel
master
|
master
Joined: Dec 2006
Posts: 4,647
aotearoa
|
Quote:
Rebel, can you tell us more about your combination? I am running this cam in a 493 in a 3200 lb duster. CNC'd EZ heads with 11.5 to 1. I will be on the Dyno this Friday.
home ported -1's flowing 360@600lift, demon 1025 carb, 5500 stall verter, 32x14 slicks 4.8 gears. 1.32 60's, 112mph @ 1/8 mile. engine in stock location, maxx block. haven't dyno'd as yet, might get some more ponies if i did. expect to run 9.6 at the end of our season when the air cools a bit more.
|
|
|
Re: INDY R-1 cam anybody??
[Re: rebel]
#263585
03/26/09 07:58 AM
03/26/09 07:58 AM
|
Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
jyrki
master
|
master
Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
|
We have had taht cam in two different 451 combos, one with stock port window home ported Stage VI heads, 10.8:1 CR, M1 single plane, 1000 cfm demon, Hooker 2" x 44" headers; it made 649 hp at 6000 rpm and 612 ft-lb at 5000 with good torque even down low. Then a change to home ported 440-1 heads & intake, 2" x 34" headers and a 1050 dominator, the CR rose to about 11.2:1. It made 713 hp at 7300 rpm, and close to 570 ft-lb at 5600, and had absolutely no power below 4000 rpm.
Plynouth VIP '67 TT IC EFI
|
|
|
Re: INDY R-1 cam anybody??
[Re: RobR]
#263587
03/26/09 03:33 PM
03/26/09 03:33 PM
|
Anonymous
Unregistered
|
Anonymous
Unregistered
|
R-1 is a fantastic cam! Anybody running one already knows this--it does not look like a big deal on paper but that cam in a 451 is great! VERY easy on parts--the correct spring will last forever--don't run tool steel springs on the street--they will break! Go with a chrome silicon and forget them! 
|
|
|
Re: INDY R-1 cam anybody??
[Re: ]
#263588
03/27/09 04:37 AM
03/27/09 04:37 AM
|
Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
jyrki
master
|
master
Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
|
In our case, it wasn't the cam that killed the engines low end, it was the port size.
Plynouth VIP '67 TT IC EFI
|
|
|
|
|
