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Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Cevidicus] #921849
04/09/11 02:14 PM 04/09/11 02:14 PM
Joined: Feb 2007
Posts: 72
San Angelo, Texas
C
Cevidicus Offline
member
Cevidicus  Offline
member
C

Joined: Feb 2007
Posts: 72
San Angelo, Texas
Exhaust

6576849-IMG_0005a.JPG (300 downloads)
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Cevidicus] #921850
04/09/11 02:19 PM 04/09/11 02:19 PM
Joined: Feb 2007
Posts: 72
San Angelo, Texas
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Cevidicus Offline
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Cevidicus  Offline
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Joined: Feb 2007
Posts: 72
San Angelo, Texas
Intake port. What is the hole for???

6576856-IMG_0007-Copy.JPG (315 downloads)
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Cevidicus] #921851
04/09/11 02:23 PM 04/09/11 02:23 PM
Joined: Mar 2005
Posts: 2,489
Pacifica, CA
Devilbrad Offline
top fuel
Devilbrad  Offline
top fuel

Joined: Mar 2005
Posts: 2,489
Pacifica, CA
Probably to equalize vacuum in all intake runners?

Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Cevidicus] #921852
04/09/11 02:25 PM 04/09/11 02:25 PM
Joined: Feb 2007
Posts: 72
San Angelo, Texas
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Cevidicus Offline
member
Cevidicus  Offline
member
C

Joined: Feb 2007
Posts: 72
San Angelo, Texas
this hole......?

6576865-IMG_0010-Copy.JPG (291 downloads)
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Cevidicus] #921853
04/09/11 02:29 PM 04/09/11 02:29 PM
Joined: Feb 2007
Posts: 72
San Angelo, Texas
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Cevidicus Offline
member
Cevidicus  Offline
member
C

Joined: Feb 2007
Posts: 72
San Angelo, Texas
Exhaust port

6576869-IMG_0003-Copy.JPG (297 downloads)
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Devilbrad] #921854
04/09/11 02:36 PM 04/09/11 02:36 PM
Joined: Feb 2007
Posts: 72
San Angelo, Texas
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Cevidicus Offline
member
Cevidicus  Offline
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C

Joined: Feb 2007
Posts: 72
San Angelo, Texas
Quote:

Probably to equalize vacuum in all intake runners?



I don't know. Maybe gremlinsteve will educate us.

Thanks gremlinsteve for the great pics. Do you have any flow bench numbers for these?
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Cevidicus] #921855
04/09/11 02:45 PM 04/09/11 02:45 PM
Joined: Dec 2008
Posts: 1,285
okla.
sam64 Offline
pro stock
sam64  Offline
pro stock

Joined: Dec 2008
Posts: 1,285
okla.
maybe egr ?
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: sam64] #921856
04/09/11 02:52 PM 04/09/11 02:52 PM
Joined: Mar 2005
Posts: 2,489
Pacifica, CA
Devilbrad Offline
top fuel
Devilbrad  Offline
top fuel

Joined: Mar 2005
Posts: 2,489
Pacifica, CA
Quote:

maybe egr ?



I don't think they have EGR, at least the emissions label on my 2010 Challenger doesn't list it. They probably use the VVT to simulate EGR like the Mazda's I work on do. Basically, hang the exhaust valve open farther to introduce exhaust gases to combustion chamber. Of course that only works with the VVT engines like those Eagle heads came off of.
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: Devilbrad] #921857
04/09/11 03:25 PM 04/09/11 03:25 PM
Joined: Nov 2008
Posts: 833
MN
hemidup Offline
super stock
hemidup  Offline
super stock

Joined: Nov 2008
Posts: 833
MN
I sent Steve that cylinder head half for his R&D. I have the matching side. The hole you see is from Steve drilling through the port to see how thick the wall is.

Jerry Williams.
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: hemidup] #921858
04/09/11 04:14 PM 04/09/11 04:14 PM
Joined: Sep 2004
Posts: 1,830
houston texas
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gremlinsteve Offline
top fuel
gremlinsteve  Offline
top fuel
G

Joined: Sep 2004
Posts: 1,830
houston texas
ding ding ding...thanks jerry.

if You Like Gremlinsteve. Gremlinsteve Likes You.
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: S/ST 3040] #921859
05/04/11 12:54 PM 05/04/11 12:54 PM
Joined: Sep 2006
Posts: 412
Portersville, Pa
1badx Offline
mopar
1badx  Offline
mopar

Joined: Sep 2006
Posts: 412
Portersville, Pa
Quote:

Quote:

the msd hemi 6 uses the factory crank,cam,map sensers,and is tuneable on the advance curves.i have 2 on 2004 5.7 carbed street cars.



I'm curious..... how do those cars run? ET? Weight?



The 6.1 N/A cars @4k lbs are running 10's
The 5.7 N/A cars @4k lbs are approaching mid 11's
The stroker F/I Hemi's are deep in the 9's as of last week.

These are street driven cars!

The Gen III Hemi's are getting faster everyday! I'm a CMR Dealer and have tuned quite a few of these cars and must say that I am really impressed at how easy it is to modify a pre-09 5.7 or 6.1 and make killer power!

We have an 07 Charger on the dyno right now that is one of the faster N/A full weight 5.7 LX's in the country. Just converted it to E85 and we'll be taking it to Thompson next week to see if we can set a new 5.7 N/A record.

For me it's just like the 70's all over again. Same bolt on parts as GM but they're more expensive, not as many aftermarket manufacturers as the GM guys, limited "used" performance parts availability but when it's all said and done the Mopars really make power and are durable.

OST Dyno - Home of the worlds Quickest and Fastest Supercharged Hellcat!
Building and tuning record setting Gen III Hemi’s since 2006!
Re: 3rd gen HEMI swap for drag racing...tricks for power. [Re: 1badx] #921860
05/05/11 05:12 PM 05/05/11 05:12 PM
Joined: Jul 2003
Posts: 12,132
Cleveland
sunroofgtx Offline
I Live Here
sunroofgtx  Offline
I Live Here

Joined: Jul 2003
Posts: 12,132
Cleveland
Great thread. Just so everyone knows, the MSD coil packs have the exact stock specs as Mopars.

Join the quickest team in motorsports. Team FireCore. CustomWiresets.com
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