03-10-2009, 06:52 PM | #1 |
Dazed and Confused
Join Date: Mar 2009
Location: Northport, Al
Posts: 778
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Opinions on my motor combo
Just wanted your thoughts on my motor combo. Suggestions for improvement, etc..
306cid, DSS forged flat tops, X-303 cam (installed dot to dot now, was 4*adv which put the intake centerline @ 101*), World Windsor Sr heads-milled to 62cc ish 2.02in 1.60exh screw in studs w/ guide plates and 1.6 roller rockers, stock bottom end with ARP rod bolts, stock 93 Cobra induction (65mm tb, 70mm maf, 24lb/hr injectors, GT40 upper and lower, stock fuel rails and regulator) 190 lph fuel pump. It has a 1" spacer on it to clear the tall valve covers- this is coming off I will be installing new efi valve covers (FMS-M-6000-C302) partly because I want the stock hood back on it and I think the spacer is hurting me and possibly contributing to idle surge Fire away, all coments welcome
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Proud owner of 93 Cobra #1928 306ci Forged flat tops, Windsor Sr iron heads, FMS X-303 cam, OE Cobra upper and lower, 65mm tb, 70mm maf, 24lb injectors, BBK shorties, Summit H-pipe and Flo-bastards |
03-10-2009, 07:01 PM | #2 |
3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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ditch the cobra intake, look into a larger MAF and t/body. (I ran a PMAS 80mm MAF and a Accufab 75mm t/body on my last n/a combo)
In case you have not already seen it, here are the different combos I put my cobra through http://www.streetstangs.net/showthread.php?t=1243
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy Last edited by QWKSNKE; 03-10-2009 at 07:08 PM. |
03-10-2009, 07:08 PM | #3 |
Dazed and Confused
Join Date: Mar 2009
Location: Northport, Al
Posts: 778
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Thanks. What do you think about the cam timing-leave it alone or move it back to 4* adv?
This is a street car that might see an occasional test and tune night
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Proud owner of 93 Cobra #1928 306ci Forged flat tops, Windsor Sr iron heads, FMS X-303 cam, OE Cobra upper and lower, 65mm tb, 70mm maf, 24lb injectors, BBK shorties, Summit H-pipe and Flo-bastards |
03-10-2009, 07:09 PM | #4 |
3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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leave it alone.
Reference my edit in the above post too
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
03-10-2009, 07:24 PM | #5 |
Dazed and Confused
Join Date: Mar 2009
Location: Northport, Al
Posts: 778
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I would definately like to put an RPM on it, but I will have to make do for now.
My first outing with the new motor felt pretty good but I was expecting more. It needs a 3.55 gear really bad and once the spacer is gone hopefully the butt dyno will see a big change
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Proud owner of 93 Cobra #1928 306ci Forged flat tops, Windsor Sr iron heads, FMS X-303 cam, OE Cobra upper and lower, 65mm tb, 70mm maf, 24lb injectors, BBK shorties, Summit H-pipe and Flo-bastards |
03-10-2009, 07:33 PM | #6 |
5.slo stanger
Join Date: Jan 2007
Location: oxford alabama
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what kind of hood do you have on inquiring minds want to know?
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no mustangs anymore but i do have a 1jz swapped 83 supra |
03-10-2009, 07:34 PM | #7 |
3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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What gear is in it now? The stock 3.08? Unless you have 3.55's already laying around, go with 3.73's. They would suit your current combination better.
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
03-10-2009, 07:38 PM | #8 |
Trunk Monkey
Join Date: Jun 2007
Location: Home
Posts: 5,708
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Personally,I'd have the heads milled to at least 60 cc's,if not 58 cc's,unless you're planning on adding boost in the future.
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Eric 89 LX Coupe-Juiced 01 Lightning-Boost 06 TBSS |
03-10-2009, 07:41 PM | #9 |
Dazed and Confused
Join Date: Mar 2009
Location: Northport, Al
Posts: 778
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tayzoid1, right at this moment none, I had a 4" cowl on it but that went back on the coupe I'm selling and I really didn't like the look of it , thought about a 2" cowl but like the stock look on the Cobra
QWKSNKE stock 3.08 now, I was thinking 1st gear would be useless with 3.73s but then again I have never had that in a 5 speed car so IDK
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Proud owner of 93 Cobra #1928 306ci Forged flat tops, Windsor Sr iron heads, FMS X-303 cam, OE Cobra upper and lower, 65mm tb, 70mm maf, 24lb injectors, BBK shorties, Summit H-pipe and Flo-bastards |
03-10-2009, 07:42 PM | #10 |
Dazed and Confused
Join Date: Mar 2009
Location: Northport, Al
Posts: 778
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I would love to add some boost at some point, say a 10lb Vortech
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Proud owner of 93 Cobra #1928 306ci Forged flat tops, Windsor Sr iron heads, FMS X-303 cam, OE Cobra upper and lower, 65mm tb, 70mm maf, 24lb injectors, BBK shorties, Summit H-pipe and Flo-bastards |
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