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09-20-2009, 02:29 AM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
I feel so blue-dot in a green-dot world some days.
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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09-20-2009, 10:55 AM
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CC Member
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Join Date: May 2003
Posts: 1,313
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Not Ranked
I second the 770 carb, big bang for the buck
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09-25-2009, 09:21 AM
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CC Member
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Join Date: Aug 2009
Cobra Make, Engine: Superformance 427R
Posts: 42
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Not Ranked
Quote:
Originally Posted by Got the Bug
How long have you owned the motor? My recommendation would be to go back to the dealer that you bought the engine from and ask them to be your advocate in getting the issue resolved. This was a known problem on some motors several years ago and Roush ended up swapping out the carbs.
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My engine is #180, built in 2005, it now has 13,500 miles. Since I'm the third owner of the car/engine I doubt Roush will help me out with the performance issues. In fact, I've contacted them twice asking for carb tuning specs (jets, power valves, diaphram springs) so I could verify my carb is as it came from Roush. So far, no response. There are lots of things I'd like to know about this engine (recommended plugs/gaps, timing, advance curve) but Roush is keeping quiet. I have eliminated my tip-in stumble through a coordinated attack on initial timing, advance curve, idle speed, idle mixture, and diaphram spring change. The jets and power valves should be OK based on the AFR plot on a recent dyno sheet I received with the car. The car is much more driveable now although it still won't idle below 1100RPM, and it bucks and complains if I ask it to cruise below 1800RPM. Maybe I'm just asking too much from an engine with a big (how big is Roush proprietary info) cam.
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09-25-2009, 09:44 AM
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CC Member
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Join Date: Jun 2005
Cobra Make, Engine:
Posts: 3,077
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Not Ranked
Mine cruises all day at 1400 rpm as smooth as a rolex watch. You need the correct carb, it is a knonw issue with early Roush engines. You need to find the right person at roush to talk too.
Quote:
Originally Posted by GEE TEE
My engine is #180, built in 2005, it now has 13,500 miles. Since I'm the third owner of the car/engine I doubt Roush will help me out with the performance issues. In fact, I've contacted them twice asking for carb tuning specs (jets, power valves, diaphram springs) so I could verify my carb is as it came from Roush. So far, no response. There are lots of things I'd like to know about this engine (recommended plugs/gaps, timing, advance curve) but Roush is keeping quiet. I have eliminated my tip-in stumble through a coordinated attack on initial timing, advance curve, idle speed, idle mixture, and diaphram spring change. The jets and power valves should be OK based on the AFR plot on a recent dyno sheet I received with the car. The car is much more driveable now although it still won't idle below 1100RPM, and it bucks and complains if I ask it to cruise below 1800RPM. Maybe I'm just asking too much from an engine with a big (how big is Roush proprietary info) cam.
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09-29-2009, 12:57 PM
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CC Member
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Join Date: Aug 2006
Location: San Diego,
CA
Cobra Make, Engine: SPF1715, Roush Built 434 ci Stroker, Dart Block, Ported AFR 205 Heads... 561 hp / 547 tq, Former Roush Show Car, Completed and Prepped By Olthoff Racing.
Posts: 1,066
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Not Ranked
Quote:
Originally Posted by GEE TEE
My engine is #180, built in 2005, it now has 13,500 miles. Since I'm the third owner of the car/engine I doubt Roush will help me out with the performance issues. In fact, I've contacted them twice asking for carb tuning specs (jets, power valves, diaphram springs) so I could verify my carb is as it came from Roush. So far, no response. There are lots of things I'd like to know about this engine (recommended plugs/gaps, timing, advance curve) but Roush is keeping quiet. I have eliminated my tip-in stumble through a coordinated attack on initial timing, advance curve, idle speed, idle mixture, and diaphram spring change. The jets and power valves should be OK based on the AFR plot on a recent dyno sheet I received with the car. The car is much more driveable now although it still won't idle below 1100RPM, and it bucks and complains if I ask it to cruise below 1800RPM. Maybe I'm just asking too much from an engine with a big (how big is Roush proprietary info) cam.
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Call Lance at Hillbank. He has the direct number to the department at Roush that builds these motors. He called the guy on a sunday on his cell when I had a question, and I had my answer in about 5 minutes.
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09-29-2009, 03:38 PM
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CC Member
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Join Date: Mar 2008
Location: Mountain View,
ca
Cobra Make, Engine: SPF2914 Sunset / Titanium
Posts: 233
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Not Ranked
Craig,
Roush is always a favorite, but for myself too, I couldn't stomach the price. That being said the devil is in the details. I ended up with a Performance Engineering package out of Ohio. Eric offered great support, phone conversations, advise, etc. His setup came complete air cleaner to oil pan, alternator, polished, fan belts, trans already bolted up, bascially a complete ready to drop in package all for less than the Roush engine alone. The other big savings is not having to track down, buy and fit all of the accessories. I think you liked the way the finished product looked as well (at Dennis'). I would happy to chat with you more offline if you had additional concerns or questions, as I have done the install myself and know what is entailed.
Andrei
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09-29-2009, 07:35 PM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,405
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Not Ranked
GEE TEE,
Earlier this year, I was helping a fellow Cobra owner in Europe get some replacement ignition parts for his car. He was not well versed in what he had under the hood, and he was also not the original owner of the car. I made a call to Roush with the required engine information and in very short order they pulled the build sheet on the motor and I had the info I needed to order the ignition parts…
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
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09-29-2009, 10:24 PM
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CC Member
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Join Date: Jul 2009
Location: Elverta,
CA
Cobra Make, Engine:
Posts: 102
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Not Ranked
Quote:
Originally Posted by m5extc
Craig,
Roush is always a favorite, but for myself too, I couldn't stomach the price. That being said the devil is in the details. I ended up with a Performance Engineering package out of Ohio. Eric offered great support, phone conversations, advise, etc. His setup came complete air cleaner to oil pan, alternator, polished, fan belts, trans already bolted up, bascially a complete ready to drop in package all for less than the Roush engine alone. The other big savings is not having to track down, buy and fit all of the accessories. I think you liked the way the finished product looked as well (at Dennis'). I would happy to chat with you more offline if you had additional concerns or questions, as I have done the install myself and know what is entailed.
Andrei
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Thanks Andrei. You have one nice car and I appreciate ride/drive.
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09-30-2009, 05:52 AM
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CC Member
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Join Date: Jun 2008
Location: Ballykeeran Big,
n/a
Cobra Make, Engine: SPF2370
Posts: 10
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Not Ranked
Quote:
He was not well versed in what he had under the hood, and he was also not the original owner of the car.
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Very true, Blas - and thanks again for your help ! I know a lot more by now and my baby never gave trouble since, starts always on the button, doesn't seem to use any oil and goes extremely well :-)
Sven aka Pike
SPF #2370
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09-30-2009, 10:37 AM
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CC Member
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Join Date: Sep 2002
Cobra Make, Engine: SPF#0760
Posts: 3,405
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Not Ranked
Roush had a great resource for all owners with their original build sheets...
Sven,
Glad to hear all is well with the car. Ownership is a learning experiance, and you become more confident with each repair you attempt...CC is a great resource too...I'll bet nobody has a problem that someone here has not already solved at one time or another...
Blas
__________________
Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
Owner’s Manuals: SPF MKII, CSX7000, CSX8000, Sebring, Bondurant, Cinema Tribute Cars $ GT40’s..
Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
SPFWiringDiagrams@Comcast.net
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10-13-2009, 07:58 PM
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CC Member
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Join Date: Feb 2009
Location: South bay area,
Ca
Cobra Make, Engine: SPF / FE428
Posts: 133
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Not Ranked
Hey Craig,
I just got done building SPF#2966.
I had Tom Lucas, owner of FE Specialties build me a 428, 510 HP.
Tom is a great guy, and will do you right!!
Tel# 916-339-0427 He's in Sacramento.
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10-13-2009, 08:06 PM
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CC Member
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Join Date: Feb 2009
Location: South bay area,
Ca
Cobra Make, Engine: SPF / FE428
Posts: 133
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Not Ranked
Hey Craig,
I just got done building SPF#2966.
I had Tom Lucas, owner of FE Specialties build me a 428, 510 HP.
Tom is a great guy, and will do you right!!
Tel# 916-339-0427 He's in Sacramento.
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