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  #136 (permalink)  
Old 05-27-2015, 01:57 PM
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Quote:
Originally Posted by ForceFed86 View Post
What kind of timing/boost was he running when the HG let go? I never had good luck with those graphite gaskets once I started making decent power. Do they make a steel shim type?
truth be told he just let us know he was running the nitrous when it let go.
what he stated is that he had the nitrous on a wot and hobbs switch to come on right out of the hole till 8psi , well it worked sort of. the nitrous got him out of the hole but the nitrous noid stuck open and the only the fuel noid shut off at 8 psi

he actually didnt get the nitrous to stop flowing till he was off the track and shut the bottle valve off

from what i understand the noid was rebuilt by somone before he bought the nitrous kit and it looks like it was reassembled improperly which caused it to hang open

hes got a brand new noid on the way

on the head gaskets we can get mls gaskets but we prefer blue felpros or the graphite gaskets, they blow long before u melt down or shatter a piston , so its saves the engine , headgaskets are easier and cheaper to replace then engines/pistons

i did suggest to him its time for headstuds but to keep using the std gaskets

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  #137 (permalink)  
Old 05-27-2015, 02:18 PM
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i think this is the timing table he ran


its a pretty soft tuneup, hes trying to play it safe witht he new bw s366 , this turbo hits hard when it comes alive compared to the gt3582

heres a log from a 3rdgear pull on that soft tune ( mph left out on purpose but 6400 rpms with his gearing is moving )
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  #138 (permalink)  
Old 05-27-2015, 02:31 PM
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With zero detonation/knock I’d distort the fire rings on graphite gaskets and they’d eventually blow out of my 3.8. Of course that was around 600 at the crank (29 lbs) he may not be there yet, but it’ll come eventually! I’d start seeing the graphite in my oil filter and I’d know it was time to pull them.

Is this on pump gas? If so, 19* at 16lbs sounds a little high to me…esp. with the nitrous on.

Good luck! Tons more potential in that little motor…


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  #139 (permalink)  
Old 05-27-2015, 02:54 PM
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Originally Posted by ForceFed86 View Post
With zero detonation/knock I’d distort the fire rings on graphite gaskets and they’d eventually blow out of my 3.8. Of course that was around 600 at the crank (29 lbs) he may not be there yet, but it’ll come eventually! I’d start seeing the graphite in my oil filter and I’d know it was time to pull them.

Is this on pump gas? If so, 19* at 16lbs sounds a little high to me…esp. with the nitrous on.

Good luck! Tons more potential in that little motor…


his gaskets still look good specially the fire rings on the none poped cyls , will let him know to keep checking his oil filters though

most guys with this combo are running around 22-24* of timing at 16 psi , and 20* at 21+ psi , hence why i called the tuneup soft , on the larger bore 3.4 motor they run about 1-2* less at those levels

he will never run the nitrous all the way down the track , its just for getting that big ole 66mm bw spooled up nitrous is supposed to shut off at 8psi
the nitrous is a bandaid atm , he should be using the antilag to launch but his points class doesnt allow it , and its to late in the year for him to move into the next class up which does allow it
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  #140 (permalink)  
Old 05-27-2015, 03:31 PM
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Huh, that’s weird it should be the other way around. Larger bores require more lead, the flame front has farther to travel. Smaller bores generally require less.

Every setup is different, shooting for “X” timing based off another setup is never a good idea. Even with similar combos there are way too many variables IMO. I’ve seen 5* variances in timing key ways/pickups on factory stock stuff.

FWIW… Once he gets it dialed, he may REALLY like nitrous! Much faster than anti-lag, and It’s not as hard on things. 10lb bottle lasts all year if you only run it a second or two so it’s cheap as well.
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  #141 (permalink)  
Old 05-27-2015, 03:35 PM
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Originally Posted by ForceFed86 View Post
Huh, that’s weird it should be the other way around. Larger bores require more lead, the flame front has farther to travel. Smaller bores generally require less.

Every setup is different, shooting for “X” timing based off another setup is never a good idea. Even with similar combos there are way too many variables IMO. I’ve seen 5* variances in timing key ways/pickups on factory stock stuff.

FWIW… Once he gets it dialed, he may REALLY like nitrous! Much faster than anti-lag, and It’s not as hard on things. 10lb bottle lasts all year if you only run it a second or two so it’s cheap as well.
he already loves it , the first time out with the new combo without the nitrous the car was 60's in the 2.2-2.3 range turbo is really laggy.
first time witht he nitrous car went 1.84 on only a 35 shot.
still slow compared to the old turbo his best 60 turbo only was 1.61 i belive on boost only footbraking it

idlike to see him run a 50 or 75 shot out of the hole , with the new converter stalling a lil more then 3k on the footbrake it should be a non issue to hit it with 50/75 shot right out of the gate
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Old 05-27-2015, 04:25 PM
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I ran a trans brake, but I’d actually activate the nitrous on the trans brake before leaving. I had it activate at 3200, little under where I stalled with no boost. Nitrous came on from 3200 to 4500. Once the turbo was “Lit” it continued to make boost on its own. I saw less than 3% slippage on that converter setup and a 1700 rpm drop from 1st to second! (glide). Wouldn’t make more than a pound of boost on its own without nitrous. With it I left at 12-16lbs.

If his brakes would hold, I bet he could start spraying before he left the line.
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Old 07-16-2015, 05:06 AM
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I'll have to look throughout what's left of my hot rod mags. At some point I saw they did a transmission and lots of suspension and got a,91 z28 in to the high 13s I think the only engine mods where K&N drop in filter and Flowmaster. I hope that helps you get a bit quicker and safer!
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  #144 (permalink)  
Old 07-16-2015, 10:32 AM
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Quote:
Originally Posted by xsefan View Post
I'll have to look throughout what's left of my hot rod mags. At some point I saw they did a transmission and lots of suspension and got a,91 z28 in to the high 13s I think the only engine mods where K&N drop in filter and Flowmaster. I hope that helps you get a bit quicker and safer!
Did you read ANY of this thread?
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  #145 (permalink)  
Old 07-16-2015, 09:20 PM
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  #146 (permalink)  
Old 07-16-2015, 09:23 PM
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should be going into the 11s?
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  #147 (permalink)  
Old 07-16-2015, 09:46 PM
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should be going into the 11s?
oh crap i forgot to post the other update , hes got it backed off and short shifting the car, the engine has been beaking up at rpm latley , and it turns out the valve sprinng were done for. he just yesterday/today starting installing the new cam and springs
Quote:
Well the car did good at the track. Best pass of a [email protected] 1.91 60 foot. Launching at 2400. But here is a problem I've noticed lately. It makes alot less power up top then it use to. Rpms don't want to go up very much. As of now I'm shifting a 5600 to make those low 12 second passes.

It's very noticable.

springs he was running is on the left its a stock 3100 valve spring


The old cam was this

Lobe sep 111.8
Duration at .050 intake-209
exhaust-212
Lift with 1.6 rockers intake-.457"
exhaust-.465"

New delta 270 cam
Lobe sep 110.2
Durrration @.050 intake-224
exhaust-226
Lift with 1.6 Rockers intake-.501"
exhaust-.509"
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  #148 (permalink)  
Old 07-27-2015, 01:28 PM
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Update. Ran a best of [email protected] yesterday
video will be up later , still a soft .85 60'
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  #149 (permalink)  
Old 07-27-2015, 05:40 PM
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This race below is with a friend in his mustang. It dynoed 393 rwhp last week when he did some work to it and had a shop dyno tune it. Nice to get out in front and pull away.

11.85 pass

the 11.85 looks like loss but it isnt he cam around the other car on the big end see slip below


and this is what it sounds like with the new cam
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  #150 (permalink)  
Old 08-09-2015, 02:50 PM
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Ran a [email protected] and a [email protected] So far today. 1.81 and a 1.80 60 foot. 14.75 psi of boost. I'll update later.
will post up the vids slips and stuff later
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