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Old 09-12-2009, 04:59 PM   #1
jon volk
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Default List your 93 octane boost, compression and timing

Theres some great info in that timing retard thread but it seems to assume the use of c16 so I figure Id start a pump gas specific timing thread.

Dont want it to turn into a pissing match so just list the info for your particular combo. Limit this to 93 octane or less pump swill. List motor, compression, turbo inducer size, boost, timing and a/f ratio. Spark plug choice might be good as well.
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Old 09-12-2009, 06:58 PM   #2
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Default Re: List your 93 octane boost, compression and timing

349sbf
8.5to1 comp.
80mm turbo
15.8psi
22 degrees of timing
a/f 11.0
ngk 8s
93 octane
dynoed this morning 704rwhp through exhaust(dynomax catback with 2.5in tailpipes) , glide, ptc conv.
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Old 09-12-2009, 07:07 PM   #3
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Default Re: List your 93 octane boost, compression and timing

id like to see how fast people have gone on pumpgas only!!! no meth or seperate cell type stuff.
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Old 09-13-2009, 12:53 PM   #4
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Default Re: List your 93 octane boost, compression and timing

496 BBC
8.5 to 1
twin S475's with 1.10 turbine housings
15psi
30* degrees of timing
pt 2000 air to water I/C
NGK 8's
92 octane from chevron

This is in a jet boat and pulls like crazy!!


Travis
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Old 09-13-2009, 12:59 PM   #5
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Default Re: List your 93 octane boost, compression and timing

Quote:
Originally Posted by stretch View Post
349sbf
8.5to1 comp.
80mm turbo
15.8psi
22 degrees of timing
a/f 11.0
ngk 8s
93 octane
dynoed this morning 704rwhp through exhaust(dynomax catback with 2.5in tailpipes) , glide, ptc conv.
what 80 mm do you have ? t4 or t6?
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Old 09-13-2009, 01:40 PM   #6
jon volk
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Default Re: List your 93 octane boost, compression and timing

Quote:
Originally Posted by SNYPER View Post
496 BBC
8.5 to 1
twin S475's with 1.10 turbine housings
15psi
30* degrees of timing
pt 2000 air to water I/C
NGK 8's
92 octane from chevron

This is in a jet boat and pulls like crazy!!


Travis
Thats a pretty good amount of timing. What heads are you running? My current shit motor has some godawfull TBI heads and they seem to need a crapload of timing to get a clean pull.
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Old 09-22-2019, 07:18 PM   #7
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Default Re: List your 93 octane boost, compression and timing

Who still runs 93?
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Old 09-22-2019, 07:56 PM   #8
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Default Re: List your 93 octane boost, compression and timing

I've ran over 30psi of boost on pump fuel with the compression in the 7s on quite a few cars. Road cars, road fuel.
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Old 09-22-2019, 10:15 PM   #9
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Default Re: List your 93 octane boost, compression and timing

That's cool. But nobody run compression that low on boosted motors today.. What about 10:1?
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Old 09-22-2019, 11:15 PM   #10
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Default Re: List your 93 octane boost, compression and timing

Quote:
Originally Posted by midnightlaundry View Post
That's cool. But nobody run compression that low on boosted motors today.. What about 10:1?
Oh my gawd...here we go.
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Old 09-22-2019, 11:33 PM   #11
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Default Re: List your 93 octane boost, compression and timing

Here we go, shut the fuck up.. If you don't like the topic, then fuck off..
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Old 09-23-2019, 07:11 AM   #12
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Default Re: List your 93 octane boost, compression and timing

408 sbf
10.3 to1 comp
82mmBillit turbo
14.0 psi On Spring
18 degrees of timing
a/f 11.0
ngk 8s
93 octane
[email protected] 725HP
Finally done with this POS
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Old 09-23-2019, 07:49 AM   #13
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Default Re: List your 93 octane boost, compression and timing

400 SBC
9.76-1 CR
Twin 60mm T4 Garrett Turbos
11.9 lbs/boost
27 Degrees Timing
A/F 11.7
NGK 7's
93 Octane with H20/Alcohol injection mixed 50/50
Non-Intercooled
12 years with CSU Blow-Thru Carb,
Now with a Holley 1250 Holley Super Sniper EFI
748rwhp with Carb. Have not dynoed it with the EFI yet.
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Old 09-23-2019, 08:55 AM   #14
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Default Re: List your 93 octane boost, compression and timing

400” sbc
9:1 static calculated. Cranked 120-130 psi
Speier 245cc heads
Custom hyd roller 246 deg
Victor efi single plane
Had twin master power t70’s but went Twin turbonetics 72mm hurricanes along with liquid intercooler
Had a treadstone air air but went air water eventually

Dyno’d 1009 whp on 24 psi with air air. 24 deg timing i think it was on dyno but turned down to 22 on street and track. Dyno doesnt load hard. Went 8.90’s at 156 at 3700-3750 lbs roughly. Straight 93 oct pump no meth
The air air cooler sucked so went air water. Had to richen up and pull timing after 1/8 mile, iat over 150

Has been 8.88 at 154 with the air water and t72’s on a better 60’ at slightly heavier 3800 lbs. probably could have gone faster but i started using vp110
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Old 09-23-2019, 01:31 PM   #15
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Default Re: List your 93 octane boost, compression and timing

337" SBF (4.065x3.25)
9.1:1
AFR 205's
245/240 cam
PT4788 w/a2a
Holley EFI with Holley single nozzle h20/meth & Boost Juice
NGK 8's
22* total timing
20lbs Boost
Car made 789whp on dyno but No ET's yet

Also picked up another 100whp on E85 with 23lbs boost (can't remember the timing) before I ran out of wastegate spring.
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