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Join Date: Mar 2006
Posts: 820
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Rothsport 3.6 Motec GT3 intake Cup exhaust in early car
This was a very fun project that went into a lightweight 2300 lb. 73 chassis.
The engine is a 3.6 longblock, Motec M84, Elgin cams...360 horsepower. I had the opportunity to do the final test and tune at the owners ex-airfield now turned into a track. ![]() ![]() ![]() ![]() |
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Brando
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Wow, cool things
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Turbo powa! 1977 911s. it's cool |
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Turbonut
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This is where I tune cars (in addition to the local dyno shop) and occasional drag races are held. Old Soviet airfield, 3.2 km total length, open anytime. I have my garage near it and can drive my race car there:
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'83 924 (2.6 16v Turbo, 530hp),'67 911 hot-rod /2.4S, '78 924 Carrera GT project (2.0 turbo 340 hp), '84 928 S 4.7 Euro (VEMS PnP, 332 HP), '90 944 S2 Cabriolet http://www.facebook.com/vemsporsche |
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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Quote:
![]() Thanks for sharing. You guys make some fantastic stuff.
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Kevin L '86 Carrera "Larry" |
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Location: San Diego
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Perfection
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Registered
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Dyno results
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Join Date: Feb 2011
Location: San Diego
Posts: 453
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Is that engine or chassis dyno?
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Join Date: Mar 2006
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Engine dyno.
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Join Date: Feb 2011
Location: San Diego
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Great #'s. Any details on the build? Stock bottom end, 996 GT3 intake with short ITB's?
Last edited by Antonov; 08-27-2013 at 08:02 PM.. |
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PFM
Join Date: Dec 2009
Location: Southern California
Posts: 290
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Having driven a near stock 3.6 in an early car this one would be a BLAST!!!!
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Stay Tuned, PFM |
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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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Wow that thing just keeps on truckin' hard up to 7500. Nice torque curve too- not a huge fall-off after the peak. Man, I would love to have 250+ ft-lb from 4300 to 7500. Not gonna happen in a 3.0L
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Kevin L '86 Carrera "Larry" |
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What kind of rods in that engine turning 7500?
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Magnus 911 Silver Targa -77, 3.2 -84 with custom ITBs and EFI. 911T Coupe -69, 3.6, G50, "RSR", track day. 924 -79 Rat Rod EFI/Turbo 375whp@1.85bar. 931 -79 under total restoration. |
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Join Date: Jul 2001
Location: Portland Oregon
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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Registered
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was the crank changed to GT3?
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"IGNITION LEFT OF STEERING" Alex |
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PFM
Join Date: Dec 2009
Location: Southern California
Posts: 290
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Ok so a bit of a broken record here what Elgin cams on this beast?
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Stay Tuned, PFM |
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Join Date: Mar 2006
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There are certain engine items that are seen and can be identified, but as far as the internal build specifics, the owner paid for and owns that information. If he wishes to share those specs. then it is up to him, not us.
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PFM
Join Date: Dec 2009
Location: Southern California
Posts: 290
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Fair enough.
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Stay Tuned, PFM |
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Join Date: Sep 2004
Location: Woking, McLaren-land
Posts: 681
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Apologies for the thread resurrection.
On a road car, can anyone tell me what the benefit would be of a gt3 intake (is this their big bore kit?) over say Rothsports low butterfly setup, either with common resonant plenum (964 intake?) or vertical stacks? I have a 3.2 carrera, recently converted to motec m84, coil on plug, tps/map - previously rebuilt with 98mm mahle and dc20 cams, kep PP, bored T/b Tis a road car, so needs to remain tractable with a focus on torque rather than ultimate top end power. I will contact rothsport directly, just seeking further opinion Cheers
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Shirish 1987 Carrera, Granite Green |
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