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Performance Modifications Want to talk about performance modifications for your Dodge Challenger? This is the forum for that. Anything from exhaust systems to power adders and everything in between. (Dodge Challenger Performance Modifications)

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Old 04-01-2009, 03:10 PM
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Rubbels 426 Stroker Engine Pics

PPP/ERL 426 Stroker
O-Ringed 426 Shortblock
Coated Pistons
Carrillo Rods
CARR Rod Bolts
ARP Main/Head Studs
Stage IV Heads (Coated)
Techco 2.9L Twin-Screw
Full Cage
1200hp 6-Speed







Last edited by PPPTech : 04-01-2009 at 03:20 PM.
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Old 04-01-2009, 03:21 PM
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Awe come on... Such a tease. Why now some pics of it being assembled?
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2009 SRT8: TorRed, 6 Speed & Loaded

Under The Hood: Forged shortblock (9:1 comp),Street Heat heads,
SC Cam,Kook's LT's,Corsa catback,Ram clutch and 11#'s of boost
Kenne Bell style!
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Old 04-01-2009, 03:43 PM
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Originally Posted by Abnmarine View Post
Awe come on... Such a tease. Why now some pics of it being assembled?
Well then the competition would be able to see why we are the best. Im actually putting together a full tech brief about our engines as well as test data from an engine dyno. It will be much like these.
http://erlperformance.com/images/sto...eve_Design.pdf
http://erlperformance.com/images/sto...ch%20brief.pdf
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Old 04-01-2009, 05:35 PM
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looking good so far, what compression is the engine?
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2009 Challenger SRT8 - Hemi Orange - 6 Speed - MyGig - Sound Group II

Current Mods:
Carbon Fiber Nose Emblem, Spoiler Badge,
Strut Covers, Plate Frame, & Door Sill Plates
HURST Shifter, Spec P-Trim Clutch


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Old 04-02-2009, 10:30 AM
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Originally Posted by 425hpChargerSRT8 View Post
looking good so far, what compression is the engine?
I believe its 9 if I'm not mistaken.
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Sound Group II / Trak Pack / Mopar CAI / SRT Hood Scoops / Gas Strut Hood Shocks
Billet Tech Catch Can / HID Lights / 3.92 Rear Axle / Predator Tune / MBRP Cat-Back
Hotchkis Front and Rear Sway Bars / Hotchkis Performance Springs
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Old 04-09-2009, 08:29 AM
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Well, the heads should be done at Calico soon and we will finish this build and ship to BMC.
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Old 04-09-2009, 04:49 PM
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very nice. what stage heads are you going with on this build?
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2009 Challenger SRT8 - Hemi Orange - 6 Speed - MyGig - Sound Group II

Current Mods:
Carbon Fiber Nose Emblem, Spoiler Badge,
Strut Covers, Plate Frame, & Door Sill Plates
HURST Shifter, Spec P-Trim Clutch


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Old 04-09-2009, 05:48 PM
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Originally Posted by 425hpChargerSRT8 View Post
very nice. what stage heads are you going with on this build?

Stage IV Heads
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Old 04-09-2009, 06:07 PM
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OK so if you did a 426 with all the good parts, no more than a 8.0 piston and ran a blower, your good stage IV heads and a decent cam, what kinda power could you expect on a reliable street car that could be used as a daily driver?

For me I would want it to look and sound half way stock as no be a sleeper. Could you get by with the stock exh manifolds too, and since my car is a 6 speed I guess I would need more clutch, but would the axles be OK?

Or would you go the 10.0 and higher route and no blower to make good power? I guess it all comes down to $$$s, but I was thinking if you could do a combo type build that makes good power, has a decent life expentancy, and still drives not to radical if you know what meaN

I would imagine just a 426 built like the 6.1 makes at least 125 HP more with a few goodies do to the cubes, better heads etc.


Lastly how about from the pipes on back, would the stk exh be a killer too with or without headers.

Maybe you could break down the power and options etc.

thanks!
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Last edited by djwhog : 04-09-2009 at 06:17 PM.
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Old 04-09-2009, 07:06 PM
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ppp stage 2 and 3 short blocks come with 3 year/36k warrenty.

the stock srt exhaust will flow enough to not hold back a n/a applications, athough a long tube header will make a good bit more power but still sound fairly tame mated to the stock exhaust.

as far as power goes, you can easily make 650+rwhp being conservative with tune with this motor + FI setup. but the halfshaft thing is still an unkown at this point. i think its safe to say they handle 500rwhp like a champ on sticky tires. but as far as these moster builds are going no one has really had the chance to test them out just yet. there are a few LX cars that are swaping over to the new rear end set up, hopefully they will be able to tell us wat kinda power these things can really handle.

I would really like to see the motor rubble is getting run as n/a with compression around 10.5-11. PPP has the record for n/a hemi right now at 11.08 @ 121mph with the next closest being torjan with a 11.40 @ 120. i think these stage IV motors could be in the 10's with the right supporting mods. i guess time will tell what they are really capable of
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Mods:

PI 3000 stall converter
Diablo
Doug Thorley long tube headers
SRT MBRP exhaust
catch can
180* thermostat
275/40/17 555r's on cobra wheels
.25 fan mod
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