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#1 |
Registered Member
Join Date: Sep 2000
Location: rock hill,S.C. 29730
Posts: 420
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![]() I had them decked .035 and due to gas prices i was running 87 w/10 degrees initial timing seems i should of raised the compression a good bit but no pinging @ 10* still 87 octane??
does this seem possable? Also i home ported heads and intake, opened exhuast to stock gasket open them up a lot, gasket matched intake ports about 1" deep ,I also port matched lower intake (head side) took out a lot of aluminum even wore a hole in #5 runner. anyway do you guys think i should raise fuel press.? Thanks sorry so long... |
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#2 |
Registered Member
Join Date: Apr 2001
Location: Staging lane
Posts: 4,337
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![]() My stock heads are also milled and ported. I have ran as much as 18 degrees of timing with 87 octane without pinging.
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer |
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#3 |
Registered Member
Join Date: Oct 1999
Location: Pierre Part, La. U.S.A.
Posts: 1,850
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![]() Ski how does it feel? you should love it.
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88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid ![]() |
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#4 |
Registered Member
Join Date: Sep 2000
Location: rock hill,S.C. 29730
Posts: 420
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![]() Man, it really fells a lot stronger, but I should've (and was told to) rebuild the bottom end at the same time(150k), but finances would'nt allow it!! She smokes a little @ WOT all cylinders have pretty equal compression 170#-180# but #2 plug stays wet with oil all others look fine? I think cylinder #2 causes the smoke & the frequent backfire during a 5200 RPM 2-3 shift? that SUCKS.
But still power is definetly UP!! ![]()
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88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ |
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#5 |
Registered Member
Join Date: Aug 2002
Location: SanAntonio, Tx
Posts: 957
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![]() Yea i run about 14* of timing with 87 gas, and my gt-40's were milled .010 i do know i have low compression explorer heads.
At the track i wouldnt chance it, so i always put in texaco 93 first, then bumped timing to 16-18 ![]()
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X-Texas highway patrol ssp 1990 coupe - exploder Gt-40 iron heads, Explorer intake, 19 lber's. E-cam. crane 1.7 rollers. 190fp. 75mm maf. 65mm tb, tubular subframe connectors, mac cai, Asp crank pulley, T-5, king cobra clutch, flowtech 1-5/8 unequals, mac X-pipe Frpp driveshaft, lakewood Lca's. race weight 3,160 12.69 @ 107.35, 1.71 60' 26x8.5 drag's 3.90 gear 13.20 @ 106.91 - 235/60/15 firestones 2.3 60' 3.27 gear |
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Thread | Thread Starter | Forum | Replies | Last Post |
octane vs. compression | gizmo83 | Windsor Power | 9 | 08-22-2002 12:17 PM |
gasoline prefrence | chatcher | Windsor Power | 29 | 03-08-2002 09:37 PM |