Re: more xr1 problems
[Re: Blucuda413]
#1427037
04/29/13 10:38 PM
04/29/13 10:38 PM
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Joined: Nov 2003
Posts: 3,060 Western New York
sixpackbee
master
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master
Joined: Nov 2003
Posts: 3,060
Western New York
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I've had problems with just about every aftermarket block I've used. Not justifying just saying.
1959 Bugeye Sprite 1967 Charger Black L code 1967 Coronet R/T Convert Green 440 auto bought from original owner 1968 Charger R/T Bronze 440 4 spd console AM/FM 1969 Super Bee WM21H B5 A40 D21 N96 1969 Barracuda Formula S 340 Convert pilot car 1969 Hemi Road Runner RM23J D32 Omaha orange 4.10 Dana N96 N85 1970 Super Bee WM23N FE5 V1X 3.91 axle package, N96 1970 Road Runner RM21N B3 V1X D13 1971 MG Midget 1971 Road Runner RM23H GW3, A57 1972 Road Runner RM23P FY1, D21
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Re: more xr1 problems
[Re: MR_P_BODY]
#1427039
04/29/13 11:25 PM
04/29/13 11:25 PM
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Joined: May 2003
Posts: 13,189 aZLiViN
J_BODY
I Live Here
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I Live Here
Joined: May 2003
Posts: 13,189
aZLiViN
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Quote:
Ok... the drift I got so far is that this block will take a W series head... is it a 59* or 48* block and whats the standard deck height... is it a 4 bolt main, whats the cam tunnel bearing size... sorry to ask all the questions with you having your problems with it
....a little insight Mr. P.
http://www.hughesengines.com/TechArticles/1ritterracingsmallblocks.php
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Re: more xr1 problems
[Re: pittsburghracer]
#1427040
04/29/13 11:49 PM
04/29/13 11:49 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
OP
master
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OP
master
Joined: Oct 2011
Posts: 3,036
bean town ....Ca
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it seem the quality of the casting is fine now. but all the machine work sucks . kent will not listen to me or anybody else . I think if kent put one of his motors together him self he would see what all of us are going through. and he would find a better machine shop..
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: more xr1 problems
[Re: WHITEDART]
#1427050
05/01/13 08:56 AM
05/01/13 08:56 AM
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Joined: Oct 2008
Posts: 235 Glendale, AZ
Dave W
enthusiast
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enthusiast
Joined: Oct 2008
Posts: 235
Glendale, AZ
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Quote:
Quote:
someone else...
that sucks......... when you move past AZ. AND keep driving to so cal not so hot here
Wish I could, we can get a lot more ''bang for the buck'' house wise in AZ.
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Re: more xr1 problems
[Re: LSP]
#1427053
05/01/13 11:18 AM
05/01/13 11:18 AM
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Joined: Oct 2008
Posts: 235 Glendale, AZ
Dave W
enthusiast
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enthusiast
Joined: Oct 2008
Posts: 235
Glendale, AZ
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Quote:
Why not just use the proven/bulletproof R5 block? An engine in the 420-430 CI range can be built easily.
I'm going to look at a complete R5/P7 next week, and that will be my plan if I end up getting it.
Initially that was the route I was going to take. I even ordered a crank from Winberg to go up to 400 cubes. After waiting 6 months for a one-off crank and with no firm deadline on when it would be done, I decided to take my money and go with the XR2 option instead. I feel like the XR2/P7 engine combo can be a viable answer to the small block guys who are craving more hp. Take a look at all the SB2 high horsepower combinations... no big secret that the heads are the key. I have had conversations with a few different well known head porters and they all agree the P7's have more potential than the SB2's. Unfortunately for us small block Mopar guys, there is no known proven recipe to use these heads in a 400+ cu.in. engine.
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Re: more xr1 problems
[Re: Dave W]
#1427054
05/01/13 01:39 PM
05/01/13 01:39 PM
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Joined: Aug 2003
Posts: 1,313 Charlotte, NC
LSP
pro stock
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pro stock
Joined: Aug 2003
Posts: 1,313
Charlotte, NC
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Quote:
Quote:
Why not just use the proven/bulletproof R5 block? An engine in the 420-430 CI range can be built easily.
I'm going to look at a complete R5/P7 next week, and that will be my plan if I end up getting it.
Initially that was the route I was going to take. I even ordered a crank from Winberg to go up to 400 cubes. After waiting 6 months for a one-off crank and with no firm deadline on when it would be done, I decided to take my money and go with the XR2 option instead. I feel like the XR2/P7 engine combo can be a viable answer to the small block guys who are craving more hp. Take a look at all the SB2 high horsepower combinations... no big secret that the heads are the key. I have had conversations with a few different well known head porters and they all agree the P7's have more potential than the SB2's. Unfortunately for us small block Mopar guys, there is no known proven recipe to use these heads in a 400+ cu.in. engine.
The exhaust guide could be offset a bit to get a bigger intake valve in to give it some air, the cam would be a matter of trying a few. I think a R5/P7 in the NMCA N/A 10.5 class would be a real competitive combo in a good car.
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