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Old 04-19-2009, 07:26 AM   #1 (permalink)
SOHC you in the FACE
 
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Default 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

My version of the video. Includes the smokey first startup.
$90 Junkyard Runs 11's on first pass- Video


Ondonti's 11.95 pass- Video

So after I had some plugs come apart last year that 4 months later I found out damaged my combustion chambers (thinking about a partial fill on the heads too) and I had a junkyard 1997 caravan sohc sitting in my driveway. The 1996+ caravan 6g72's are 9.3:1 compression with the same cams.
I swapped my intake manifold, valve covers, oil pan, turbo setup to the junkyard motor. Got it running on gas and then converted to E85.
I cant run as much boost as I did on the dyno before so i figured with 2100cc's of meth, and e85 needing 30% more fuel flow, I would reduce my boost by about 20% (1/3 my hp comes from meth). This made me feel pretty dang safe on the e85.

I also drove the car a lot harder and this stock heads/cams/compression motor has a lot more power in the lower rpms so I dont bog on shifts. I still have a lot of work to do on driving. I nailed the 1-2 but my 3-4 was a no throttle grandma shift where I got nervous and sorta forgot what i was doing. Hurt my 1/8th and 1/4 traps but not so much the E.T. Its a lot of fun and I don't worry about an expensive motor! I still need the driver mod but I did knock off .8 seconds with basically just a better 1-2 shift (same 60')

This is all with methanol and a rising rate regulator. ECU has no idea what boost is. My megasquirt is currently getting fixed by someone who recently megasquirted their sohc 6g72 (and found a bad injector driver). Luckily he is a professional electronics guy and DIYautotune released the install guide for all SOHC 6g72's (I think the Montero guys are running it already).

So in the future I can get more fuel flow from not needing the rising rate regulator and I am thinking about an inline walbro which will definitly help even while still on the rising rate regulator (though not upgrading the tiny 5/16" lines yet).

I am trying to be very safe, stock 12 degrees of base timing on e85, just seeing how far the motor can go before the top rings butt and I pop a ringland. I dont know if the top ring gaps are larger on the 1996+ caravan motors. My friend who builds crazy 2jz's says he thinks the e85 will allow a lot more boost before the rings expand too much because of how much cooler it runs.

I finally surpassed the quickest (12.6) 3.0 documented and also eclipsed an undocumented car that ran low 12's on some weird Shelby built prototype motor and 20+ pounds of race gas fury.

I followed Ray's advice and took out my 8lb aluminum flywheel and am using an 18 lb stock chrysler flywheel. I also have the good chrysler harmonic balancer on. Trying to be more respectful of the cast crank.

Video
Ondonti's 11.95 pass- Video

Timeslip
I think the SRT4 was pissssed. We got the same exact reaction time, I killed him on the 60', he gained a little from superior driving, and then I walked away when i finally figured out the 4th gear shift I bet he thought he was going to walk past at the 1/8th. Probably only gained cause I wasn't in gear for a bit. Darned good drag race! My best ever.
He is stage 3 + toys but the 4400' elevation here is nasty on the stage 3 turbo.

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1992 Duster 11.54@125 22psi BONE Stock 6g72 12 valve - 12.7@114 14psi boost -516whp 519ft/lb 20psi (Old 3.13L built shortblock) - Precision 6765, Tial 38mm open dump, 3" open downpipe, 20x12x3" evo style intercooler, Stock 10:1 diamante 12 valve shortblock with regapped rings. heavily ported heads (+40% on flowbench), Ferrea Competition Plus +2 +1 stainless valves, Nielson Vintage Racing 278 custom turbo cams, RPW cam gears, Custom Ram Style short runner intake manifold, 12 Gal Jaz Fuel Cell, Dual external Walbro GSL392 255HPs, Dual 5/16" feed lines, Trick Flow AFPR, 3 puck solid hub & 3300# DD plate, OBX Torsional Diff, Zeitronix wideband/EGT/Boost, 2100cc 3 nozzle DevilsOwn Meth. Running on 4.0 BAR Megasquirt II, 47# Inj, E70 Fuel
1994 Spirit - 13.987@101.89 - 5psi- 6g72 SOHC, K27 Turbo

http://videos.streetfire.net/video/9...-on_649313.htm

Last edited by Ondontii : 04-28-2009 at 05:15 AM.
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Old 04-19-2009, 09:55 AM   #2 (permalink)
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

thats pretty damn cool man! gotta love a sleeper like that. the srt guy was thinking hes got that one for sure haha
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Old 04-19-2009, 10:24 AM   #3 (permalink)
...feeling very depressed
 
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

now if only the sohc 3/s guys could do the same.
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Old 04-19-2009, 10:58 AM   #4 (permalink)
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

Haha that's cool. I had an 91 shadow...maybe I should have kept it lol.
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Old 04-19-2009, 11:06 AM   #5 (permalink)
vice prez: TPW
 
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

Damn nice run!

Great work. You know everyone in the grandstands loved that run.

-John
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Old 04-19-2009, 11:28 AM   #6 (permalink)
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

congrats brent. great progress on the 60'. im moving away from my alum flywheel in favor of the stocker as well.
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Old 04-19-2009, 11:36 AM   #7 (permalink)
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

Awesome! Good to see some impressive numbers from that thing...finally.
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Old 04-19-2009, 12:18 PM   #8 (permalink)
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

That was a great race!!
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Old 04-19-2009, 12:36 PM   #9 (permalink)
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

congrats thats good stuff
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Old 04-19-2009, 01:32 PM   #10 (permalink)
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Default Re: 11.95@117 Bone stock SOHC heads/cams/shortblock e85 16psi

NICE! That was a nice vid. I should have come last night, but I was snowmobiling for the last time of the year. ...and it was worth it.

Car definitely has more in it w/better driving tho (as you know).
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