Take a look at my forged 6.1 hemi build.
#1203472
03/25/12 09:31 PM
03/25/12 09:31 PM
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Joined: Dec 2010
Posts: 243 United States
W9 Dart
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As many know I'm doing a hemi swap in my 68 Dart. On 12 Mar I decided to pull the trigger on some goodies for the build so I called up Dave Webber at Moder Muscle Performance Group ordered a set of his ported 6.1 heads with 625 springs, retainers, and guides, custom cam, forged drop in pistons with new rings, cometic head gasket, new rod bolts, etc. I also made a phone call to my friend AJ Hemituner and bought a complete 6.1 engine. He wanted to send it to me assembled but I wanted it un-assembled so I could put the goodies on it from MMP. After seeing a smoking deal on a used KB I scooped it right up and now had all the parts in place within 10 days from nothing to everything. That's a very remarkable turn around time on this. Next I called up my buddy Jeff (Popeye's Hemi) and asked for his assistance to assemble this mountain of parts. Jeff arrived Friday night grabbed so beers went to the shop and the labor began. We both were unsure as to what to gap the new rings at so i called very intelligent individuals in the know and they gave what they would gap them for my build. So after a lot of reading and talking on the phone we decided on the top and second gaps along with the bottom rings. We purchased a hand wheel to gap the rings to our specs. If you've never gaped a ring it takes a long time to measure each cylinder gap the ring put in back in the cyl, measure again, grind a little, put it back, you get the point... very time consuming. After 3-4 hours we were complete and are very satisfied with our work. Time of assembly... We were smart enough to mark each rod and cap by a number and the direction it was facing before disassemble. This made a assembly easy and had two check points (our marks and the pistons had larger valve reliefs with obviously go on the top of each cyl). We used a crappy ring compressor that we fought a few pistons with but other than that they all went in with out a hitch. Something we did was to rotate the crank with the crank journals down so when we installed the piston a rod it couldn't reach it a smack it possible causing damage to it or the rod. We used this same level of attention to detail throughout this entire build. Every Bolt was spec and torqued, all new gaskets, assembly lube, etc. I wanted to thank Scott 1fst4dr as I asked a lot of question and we shipped parts back and forth within a few days.. He's top notch in my book. Also Dave Webber and AJ for putting up with the numerous phone calls and obviously the bad ass parts to make this all happen. Jeff for the time you took to help me out ..very cool ( love the sound of the 300 BTW) SICK! Next week I will put it in place mate it to the tranny, plug it in, and start on the custom headers. I'm hoping to get it to AJ for tuning a week prior to 27 Apr. Still a lot of work to be done but it should start moving fast now. Here are some pics of this weekend. These pic are not in order.. I think I got Jeff in one acting like he's doing something but still managing to pose! Go figure!
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203473
03/25/12 10:18 PM
03/25/12 10:18 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
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Charleston
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are they stock rods? will the oil pan fit in your car? looks nice
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Take a look at my forged 6.1 hemi build.
[Re: sixpackgut]
#1203474
03/25/12 10:20 PM
03/25/12 10:20 PM
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Joined: Dec 2010
Posts: 243 United States
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Quote:
are they stock rods? will the oil pan fit in your car? looks nice
Yes stock rods.. thats why I went from 14 to 10 lbs of boost.. I have a tubular K frame so yes the pan will fit.
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Re: Take a look at my forged 6.1 hemi build.
[Re: 340RICK]
#1203477
03/25/12 11:24 PM
03/25/12 11:24 PM
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Joined: Jun 2003
Posts: 9,225 Charleston
sixpackgut
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how much boost can the supercharger make?
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203479
03/25/12 11:50 PM
03/25/12 11:50 PM
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Joined: Sep 2004
Posts: 1,828 houston texas
gremlinsteve
top fuel
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top fuel
Joined: Sep 2004
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which cam are you running
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Re: Take a look at my forged 6.1 hemi build.
[Re: gremlinsteve]
#1203480
03/26/12 12:05 AM
03/26/12 12:05 AM
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Joined: Dec 2010
Posts: 243 United States
W9 Dart
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Quote:
which cam are you running
Custom grind. 230s at 600ish lift
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Re: Take a look at my forged 6.1 hemi build.
[Re: Cab_Burge]
#1203483
03/26/12 08:55 AM
03/26/12 08:55 AM
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Joined: Dec 2010
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Quote:
Quote:
My buddy using the same kb was running 21 lbs running 9.50 in his 08 challenger 4400 lbs. I'm dialing it back to 10 lbs for now.
How much power are you wanting to make? Is this a street and strip or a race motor only? What is available for adjustable valve train on those motors now? I know nothing about Gen 3 Hemi
The valve train is a hyd non adj. This will be a street/strip car.
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Re: Take a look at my forged 6.1 hemi build.
[Re: goldmember]
#1203484
03/26/12 08:57 AM
03/26/12 08:57 AM
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You added forged pistons and left the PM rods? That would worry me. Hope it works out well for you.
People have been doing this same combo for a while now.. not ground breaking stuff here. As long as I keep the boost under 12 I will be fine. I only know of one person her has actually even broke a rod and it was b/c of det. I also have upgraded 6.4 bolts
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Re: Take a look at my forged 6.1 hemi build.
[Re: STEFF]
#1203486
03/26/12 12:12 PM
03/26/12 12:12 PM
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I broke a rod in an N/A application and it wasn't due to detonation. Took the block out. Also, when a Powdered Metal rod breaks, it splinters into millions of pieces that will get sucked thru your motor. Save yourself some future destruction & put a set of H-Beams in there.
Thx STEFF, but it's together and going in as is.. I've been running these engines for about 6 yrs now and it's a rare occassion to hear that a rod broke.. 5.7 and 6.1 rods are different btw.
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203487
03/26/12 12:41 PM
03/26/12 12:41 PM
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Joined: Jan 2003
Posts: 3,868 Smyrna, South Carolina
STEFF
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Quote:
Quote:
I broke a rod in an N/A application and it wasn't due to detonation. Took the block out. Also, when a Powdered Metal rod breaks, it splinters into millions of pieces that will get sucked thru your motor. Save yourself some future destruction & put a set of H-Beams in there.
Thx STEFF, but it's together and going in as is.. I've been running these engines for about 6 yrs now and it's a rare occassion to hear that a rod broke.. 5.7 and 6.1 rods are different btw.
I broke a 6.1 rod
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203489
03/26/12 01:59 PM
03/26/12 01:59 PM
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Joined: Sep 2004
Posts: 1,828 houston texas
gremlinsteve
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so your using a 4032 mahle piston and a stock rod. for the money being spent i would think that a h beam would be warranted. since a balance job was needed anyways.
i would be worried about that piston just as much as that rod.since there is a track history of em breaking up too. but what do i know right jason
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203491
03/26/12 03:24 PM
03/26/12 03:24 PM
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Joined: Nov 2003
Posts: 10,384 Upstate NY
Bigcube
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Not sure how you can change a piston and not need to balance the rotating assembly unless the replacement piston is the exact same weight of the pistons that were balanced into the crank originally. Please enlighten me, I would like to learn?
Jim
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Re: Take a look at my forged 6.1 hemi build.
[Re: Bigcube]
#1203492
03/26/12 05:23 PM
03/26/12 05:23 PM
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Joined: Dec 2010
Posts: 243 United States
W9 Dart
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Not sure how you can change a piston and not need to balance the rotating assembly unless the replacement piston is the exact same weight of the pistons that were balanced into the crank originally. Please enlighten me, I would like to learn?
That is exactly what the deal is.. these pistons were designed by DAve Webber who made them the exact weight of the stock pistons.
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203493
03/26/12 06:28 PM
03/26/12 06:28 PM
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Joined: Jan 2003
Posts: 3,868 Smyrna, South Carolina
STEFF
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Quote:
Balmar what do you think the cause of the broken rod was?
Stock parts in an abusive environment. It wasnt the bolts that let Loose as the big end was still attached to the crank. The motor let go at 6000 rpm. No sign of valve float.
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Re: Take a look at my forged 6.1 hemi build.
[Re: STEFF]
#1203494
03/26/12 07:15 PM
03/26/12 07:15 PM
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Joined: Dec 2010
Posts: 243 United States
W9 Dart
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Quote:
Quote:
Balmar what do you think the cause of the broken rod was?
Stock parts in an abusive environment. It wasnt the bolts that let Loose as the big end was still attached to the crank. The motor let go at 6000 rpm. No sign of valve float.
Still strange... stock parts letting go at 6000 rpms.. not a common occurrence.
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Re: Take a look at my forged 6.1 hemi build.
[Re: fishy340]
#1203496
03/26/12 08:55 PM
03/26/12 08:55 PM
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Joined: Dec 2010
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W9 Dart
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i believe the 6.1 comes w forged pistons and rods.
no the 6.1 is only a forged crank, the pistons are not great for anything other than N/A and the rods are powdered.
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203497
03/27/12 01:43 PM
03/27/12 01:43 PM
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Joined: Jan 2003
Posts: 5,762 Hot Rod Ridge
FastmOp
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Nice build! I run 6psi with a procharger. These new hemis are pretty fun. Good luck with the build, 10psi with that cam is alot more air then 10psi stock. You need to post some vids of that beast in your hot rod running. It's going to be wild
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Re: Take a look at my forged 6.1 hemi build.
[Re: W9 Dart]
#1203500
03/31/12 02:15 AM
03/31/12 02:15 AM
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Joined: Sep 2004
Posts: 1,828 houston texas
gremlinsteve
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is that the same car that was at lee's place for a while
if so it has changed alot. nice looking car now
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