THE R5 P7 THREAD FOR EVERYONE - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech THE R5 P7 THREAD FOR EVERYONE

Print Thread

Page 2 of 4

1

2

3

4

Re: THE R5 P7 THREAD FOR EVERYONE [Re: DemonDust] #1737313 01/25/15 01:18 AM 01/25/15 01:18 AM
Joined: May 2014 Posts: 35 Down under O OUTLAW565 OP member
OUTLAW565 OP member O Joined: May 2014 Posts: 35 Down under	Thanks for sharing mate. I wouldn't give to much away if was running N/T either.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: OUTLAW565] #1737314 01/25/15 01:32 AM 01/25/15 01:32 AM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	Just some info for you guys...The m&m intake for sb2 is very small to get what the heads like. The reason I say this is your p7s are almost identical and I've seen the monster intakes for beastly sb2 motors...the runners are a little smaller then a tennis ball

Re: THE R5 P7 THREAD FOR EVERYONE [Re: fishy340] #1737315 01/25/15 02:36 AM 01/25/15 02:36 AM
Joined: Jan 2003 Posts: 4,421 in a chair mopartony master
mopartony master Joined: Jan 2003 Posts: 4,421 in a chair	Like this? 8407176-traminside2.jpg (205 downloads)

Re: THE R5 P7 THREAD FOR EVERYONE [Re: DemonDust] #1737316 01/25/15 05:56 AM 01/25/15 05:56 AM
Joined: Aug 2004 Posts: 2,128 sweden S sshemi top fuel
sshemi top fuel S Joined: Aug 2004 Posts: 2,128 sweden	Quote: I'm running a 904, 7200 stall. Mono leafs and cal tracs. DA Viking shocks. I run clocks off so I don't care to share much more. Currently rebuilding my engine, it was getting tired after 5 years. Hoping to get the suspension dialed in with the new build and run KOTS and some grudge racing. When you rebuild it will you get new pistons with normal rings, or go with the super expensive rings? Im pretty sure when my motor needs rebuild i will get a set of custom pistons with normal rings grooves. Either get them for boost or NOS.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: sshemi] #1737317 01/25/15 08:48 AM 01/25/15 08:48 AM
Joined: Dec 2007 Posts: 486 IL knyech1 mopar
knyech1 mopar Joined: Dec 2007 Posts: 486 IL	I'm taking on the daunting task of building one of these up from a virgin block and a few parts (which everyone says I shouldn't do. I will be putting in a more normal piston and ring package with lower comp for a big turbo. knyech1- '71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph "Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B. '03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: knyech1] #1737318 01/25/15 09:00 AM 01/25/15 09:00 AM
Joined: May 2014 Posts: 35 Down under O OUTLAW565 OP member
OUTLAW565 OP member O Joined: May 2014 Posts: 35 Down under	Quote: I'm taking on the daunting task of building one of these up from a virgin block and a few parts (which everyone says I shouldn't do. I will be putting in a more normal piston and ring package with lower comp for a big turbo. Sounds good mate. What size turbo are you going to use? Blow through or efi? The main and big end journals are a bit small.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: sshemi] #1737319 01/25/15 12:35 PM 01/25/15 12:35 PM
Joined: Feb 2005 Posts: 5,207 Menomonee Falls DemonDust master
DemonDust master Joined: Feb 2005 Posts: 5,207 Menomonee Falls	Quote: Quote: I'm running a 904, 7200 stall. Mono leafs and cal tracs. DA Viking shocks. I run clocks off so I don't care to share much more. Currently rebuilding my engine, it was getting tired after 5 years. Hoping to get the suspension dialed in with the new build and run KOTS and some grudge racing. When you rebuild it will you get new pistons with normal rings, or go with the super expensive rings? Im pretty sure when my motor needs rebuild i will get a set of custom pistons with normal rings grooves. Either get them for boost or NOS. I'm currently undecided on a block. I may go with an aluminum block, I'm waiting to hear back on what the specs of it are. If it is usable for what I want, I will go with that. Even if I use my current block or the other one I have laying here which are both iron. I would use a normal ring pack .043,.043, 3mm. Even if I used my old pistons, Eric at Rebco can open up the ring lands for under $250 for the whole set, so cost effective rings can be used. I've got about 10 sets of new and used pistons so no matter which way I go it'll get a more normal ring pack. SDG Motorsports Hellcat Demon and Redeye Supercharger CNC Porting https://www.sdgmotorsports.com/

Re: THE R5 P7 THREAD FOR EVERYONE [Re: DemonDust] #1737320 01/25/15 01:47 PM 01/25/15 01:47 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Since these are normally a very high reving engine and I assume a fairly short stroke... whats the longest arm you can fit in the block.. and of course.. can you find a long arm crank

Re: THE R5 P7 THREAD FOR EVERYONE [Re: OUTLAW565] #1737321 01/25/15 03:17 PM 01/25/15 03:17 PM
Joined: Dec 2007 Posts: 486 IL knyech1 mopar
knyech1 mopar Joined: Dec 2007 Posts: 486 IL	Quote: Quote: I'm taking on the daunting task of building one of these up from a virgin block and a few parts (which everyone says I shouldn't do. I will be putting in a more normal piston and ring package with lower comp for a big turbo. Sounds good mate. What size turbo are you going to use? Blow through or efi? The main and big end journals are a bit small. I have been told that by a few people, but honestly don't know how concerned I need to be with the journals. It's a standard Honda B18 rod. Manley makes a turbo tuff rod for them with 1.88 big end and an .866 pin and 4 of those rods are capable of 1000+hp. Far as the crank mains they run 302 mains and I have no worries about that. I am not sure what size turbo. I have had my eyes on a BWS480 with the Airwerks upgrades. It's capable of 1200hp or so, and that's a ton. If I wanted more than 1200hp I would be looking at something a little bigger. I really wanted to go efi on this one, but don't know where to start with that. Injectors and throttle body are no problem, but have zero experience with fuel control modules and tuning. Plus....it's expensive. knyech1- '71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph "Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B. '03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: MR_P_BODY] #1737322 01/25/15 03:28 PM 01/25/15 03:28 PM
Joined: Dec 2007 Posts: 486 IL knyech1 mopar
knyech1 mopar Joined: Dec 2007 Posts: 486 IL	Quote: Since these are normally a very high reving engine and I assume a fairly short stroke... whats the longest arm you can fit in the block.. and of course.. can you find a long arm crank I think this has been talked about before. IIRC you can fit a crank in these blocks large enough to go over 400ci. Finding a crank will be impossible, because all of them are billet ones from NASCAR teams. Well unless someone had one made and would want to sell it. I think the longest crank I have seen was 3.300" stroke, and the longest rod I've seen was 6.200". My crank is 3.255" and the rods are 6.000". Guys like Jesse have done way more than me though. He may tell you otherwise. I'm just getting into these platforms, have lots to learn. knyech1- '71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph "Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B. '03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: knyech1] #1737323 01/25/15 03:52 PM 01/25/15 03:52 PM
Joined: Feb 2005 Posts: 5,207 Menomonee Falls DemonDust master
DemonDust master Joined: Feb 2005 Posts: 5,207 Menomonee Falls	I've seen a 3.73? and a 3.800. The guy that had them wanted stupid money for them so I passed since they were used. I called Winberg and they can make them in the 3k range. I've seen around 8-10, 3.55-3.58 on eBay. They usually went for a decent price, but at the time I wasn't looking to buy. I think a 4" is possible but you'd have to open up the cam tunnel for clearance. Last edited by R5P7Duster; 01/25/15 03:52 PM. SDG Motorsports Hellcat Demon and Redeye Supercharger CNC Porting https://www.sdgmotorsports.com/

Re: THE R5 P7 THREAD FOR EVERYONE [Re: DemonDust] #1737324 01/25/15 05:12 PM 01/25/15 05:12 PM
Joined: Nov 2004 Posts: 4,330 Lynchburg, VA Leon441 master
Leon441 master Joined: Nov 2004 Posts: 4,330 Lynchburg, VA	The most stroke I have seen on EBay was 3.300. There was an engine for sale with more stroke. I missed the deal. It was a 388. I started looking at a later date than R5P7 duster did. Message is they are gone. Career best 8.02 @ 169 at 3050# and 10" tires small block power.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: Leon441] #1737325 01/25/15 06:24 PM 01/25/15 06:24 PM
Joined: Feb 2005 Posts: 5,207 Menomonee Falls DemonDust master
DemonDust master Joined: Feb 2005 Posts: 5,207 Menomonee Falls	Yeah, all the big stroke stuff I found was 2006 early 2007, when I was looking for parts to finish my build. SDG Motorsports Hellcat Demon and Redeye Supercharger CNC Porting https://www.sdgmotorsports.com/

Re: THE R5 P7 THREAD FOR EVERYONE [Re: DemonDust] #1737326 01/25/15 08:29 PM 01/25/15 08:29 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	I was just wondering... looks like the gen 3 is still in the near future ... thanks guys

Re: THE R5 P7 THREAD FOR EVERYONE [Re: MR_P_BODY] #1737327 01/25/15 10:42 PM 01/25/15 10:42 PM
Joined: Dec 2007 Posts: 486 IL knyech1 mopar
knyech1 mopar Joined: Dec 2007 Posts: 486 IL	Quote: I was just wondering... looks like the gen 3 is still in the near future ... thanks guys I got rid of my gen3 hemi build because the parts were just as expensive, and the R5 block is much more capable. Made better sense to me. knyech1- '71 Sassy Grass Demon 340/904. Pump gas, 1.61 60ft, 7.439 1/8 @ 95mph, 11.824 1/4 @ 111mph "Not too bad for a pump gas 340, full of used parts and hillbilly ported stock heads." - V.B. '03 2500 5.9L HO 6-spd on 35's. 395hp/755ft-lb at tires.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: knyech1] #1737328 01/26/15 01:35 AM 01/26/15 01:35 AM
Joined: Jan 2003 Posts: 4,421 in a chair mopartony master
mopartony master Joined: Jan 2003 Posts: 4,421 in a chair	Mike, I am not sure on the stroke but I have been told a 414 is achievable with the stock block. Not sure what mods maybe needed to make it fit in the block.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: mopartony] #1737329 01/26/15 03:23 AM 01/26/15 03:23 AM
Joined: Feb 2005 Posts: 5,207 Menomonee Falls DemonDust master
DemonDust master Joined: Feb 2005 Posts: 5,207 Menomonee Falls	414 is easily achievable. That 3.75 crank I could have bought would have put me there with the early petty pistons no problem. I know that will fit with little issue. The block the guy was selling it with didn't appear to have any machine work done on it. SDG Motorsports Hellcat Demon and Redeye Supercharger CNC Porting https://www.sdgmotorsports.com/

Re: THE R5 P7 THREAD FOR EVERYONE [Re: DemonDust] #1737330 01/26/15 12:39 PM 01/26/15 12:39 PM
Joined: Nov 2004 Posts: 4,330 Lynchburg, VA Leon441 master
Leon441 master Joined: Nov 2004 Posts: 4,330 Lynchburg, VA	EEI advertises iron block combos at 414". Career best 8.02 @ 169 at 3050# and 10" tires small block power.

Re: THE R5 P7 THREAD FOR EVERYONE [Re: mopartony] #1737331 01/26/15 04:41 PM 01/26/15 04:41 PM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	If you look at Jeremy Combs fb page you can see one of manifolds cut in half.. Jeremy builds some of the baddest engines out their and why Extreme is his company name .. And yes BIG is better

Re: THE R5 P7 THREAD FOR EVERYONE [Re: fishy340] #1737332 01/31/15 10:01 PM 01/31/15 10:01 PM
Joined: May 2014 Posts: 35 Down under O OUTLAW565 OP member
OUTLAW565 OP member O Joined: May 2014 Posts: 35 Down under	What ignitions are you blokes using on these engines?

Page 2 of 4

1

2

3

4

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1