BlackMagic14
Needs a job
Posts: 2058
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posted April 28, 2011 02:15 PM
Will a stock motor handle 6psi boost?
Like the title says. Will a stock motor 14 handle 6psi reliably on pump gas?
  
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01smokes
Needs a job
Posts: 2243
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posted April 28, 2011 02:57 PM
Yes yes yes it will hold that all day long the 14motor is a tank. It will laugh at 6 psi just get a good tune on it with a good fuel system keep the AFRs FAT like mid 11s and you will love it.
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gilberjj
Needs a job
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posted April 28, 2011 03:10 PM
 Edited By: gilberjj on 28 Apr 2011 23:10
From everything I've seen, a stock motor will eat up 6psi no problem. Davej put something like 30k miles on his stock motored stage 1 muzzy kit. The only reason it failed was because of his fuel system. So in short, heck ya!
I lowered my compression to 10.3:1 using a thicker head gasket, and I'm hoping to do somewhere between 12-15 psi on the stock motor!
Edit: 6psi is fine for pump. 7-8 psi is pushing it on pump. I'll be running e85.
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1badzx12r
Needs a life
Posts: 8321
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posted April 28, 2011 03:38 PM
quote:
I lowered my compression to 10.3:1 using a thicker head gasket, and I'm hoping to do somewhere between 12-15 psi on the stock motor!
I'll be running e85.
bet you a cheeseburger you blow that head gasket between cylinders on 12 to 15lbs
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zxbob
Pro
Posts: 1692
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posted April 28, 2011 04:47 PM
Edited By: zxbob on 29 Apr 2011 00:48
quote:
bet you a cheeseburger you blow that head gasket between cylinders on 12 to 15lbs
Allways look'n for a free lunch Robert 
Bob
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Good parts aint cheap and cheap parts aint good !
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1badzx12r
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posted April 28, 2011 05:02 PM
quote:
quote:
bet you a cheeseburger you blow that head gasket between cylinders on 12 to 15lbs
Allways look'n for a free lunch Robert
Bob
i need to lay off the free lunches ...
well i've never had a washington state cheeseburger tho..
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LAB3
Needs a job
Posts: 2977
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posted April 28, 2011 05:10 PM
quote:
quote:
bet you a cheeseburger you blow that head gasket between cylinders on 12 to 15lbs
Allways look'n for a free lunch Robert
Bob
LMAO Good One Bob. Robert owes me a jelly donut.
Louis
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Stu64
Zone Head
Posts: 548
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posted April 28, 2011 05:21 PM
quote:
Yes yes yes it will hold that all day long the 14motor is a tank. It will laugh at 6 psi just get a good tune on it with a good fuel system keep the AFRs FAT like mid 11s and you will love it.
AFR mid 11's? on pump gas or E85?
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1badzx12r
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Posts: 8321
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posted April 28, 2011 05:45 PM
louis how in the hell do i owe you 1 jelly donut ..
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DogoZX
Expert Class
Posts: 348
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posted April 28, 2011 05:45 PM
quote:
i need to lay off the free lunches ...
well i've never had a washington state cheeseburger tho..
I'd recommend Bubba's, in Allyn.... They're pretty darn good...
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LAB3
Needs a job
Posts: 2977
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posted April 28, 2011 05:50 PM
quote:
louis how in the hell do i owe you 1 jelly donut ..
Helping you find parts on Flebay :-)
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1badzx12r
Needs a life
Posts: 8321
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posted April 28, 2011 06:10 PM
quote:
quote:
louis how in the hell do i owe you 1 jelly donut ..
Helping you find parts on Flebay :-)
well send me your mailing address and i'll get 1 in the mail ... ebay don't have jelly donuts
____________
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LAB3
Needs a job
Posts: 2977
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posted April 28, 2011 06:18 PM
OK next time we are in Baytown ( Wife's photo shoot Eagles) I will look you up.
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01smokes
Needs a job
Posts: 2243
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posted April 28, 2011 06:19 PM
quote:
quote:
Yes yes yes it will hold that all day long the 14motor is a tank. It will laugh at 6 psi just get a good tune on it with a good fuel system keep the AFRs FAT like mid 11s and you will love it.
AFR mid 11's? on pump gas or E85?
Ya mid 11s why not run it safe, pump, e85, c16, c16 it's tune em all the same keep them motors cool and alive hell with making power leaning it out, if you want more power turn it up another pound or two..
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BlackMagic14
Needs a job
Posts: 2058
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posted April 28, 2011 08:18 PM
Well I hope somebody buys the Brock ct pipe I have for sale before the bike is finished or I will be a grand short lol
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01smokes
Needs a job
Posts: 2243
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posted April 28, 2011 08:22 PM
quote:
Well I hope somebody buys the Brock ct pipe I have for sale before the bike is finished or I will be a grand short lol
What are you asking for the CT? Is it in the classifieds?
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BlackMagic14
Needs a job
Posts: 2058
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posted April 29, 2011 04:28 AM
Yes it I's in the classifieds. 1025 shipped
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Big_T112
Pro
Posts: 1061
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posted April 29, 2011 06:33 AM
I poped the head gasket on my turbo 14 because of boost creep when it just had the stock motor. I had good gas in it. also an air shifter backfire/pop under boost will get the head gasket also. after that I just put shorter rods and turbo pistons in it. also head studs. at minimum I would put head studs in it. just my 2 cents. and it poped a head gasket again at 20 lbs of boost with all that stuff. but after a cometic head gasket it was trouble free.
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted April 29, 2011 08:54 AM
Dang....... I sure hope I don't pop a head gasket. I torqued my stock headbolts to 58 lbs. Maybe I'll just keep the boost down. I don't want to chase numbers, I'd rather just have a smooth reliable bike.
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1badzx12r
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Posts: 8321
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posted April 29, 2011 11:10 AM
running them rich will get head gaskets also ..
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BlackMagic14
Needs a job
Posts: 2058
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posted April 29, 2011 12:36 PM
So I should run a thick cometic head gasket?
BTW This is a Velocity Stage 1 Kit retail is $3999
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted April 29, 2011 04:25 PM
Hard to say. I hope to dyno mine next week, and if it makes decent power then it might be worth it. However, it's probably just better to buy some Wossener turbo pistons. That's what I should've done. Then again, if you buy pistons, you'll want rods.... and if you want rods, you'll want a better oiling system so you don't spin lower end bearings. It never really ends. I'll give up some power but reliability should be very high I'd think. But it's all bench racing till mine runs.
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Stu64
Zone Head
Posts: 548
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posted April 29, 2011 04:33 PM
Taking mine in to have it tuned tomorrow,right now it has a 7psi e85 map in it i got from a member here.
I have a 7psi spring in the waste gate with 3 shims,suppose to give me around 8psi.
Will have the afr set around 11.8 no boost and 11.5 on boost.
Pulling 4 degrees timing at 5psi and up.
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Big_T112
Pro
Posts: 1061
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posted April 29, 2011 05:41 PM
Getting a good tune really helps. I still had boost creep and had to watch it close on pump gas. I mostly rode around with Av gas in it that I could get cheap at the airport. 100 octane. and a couple of onces of 2 cycle premix to a tank full of gas for good measure.
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Oz Booster
Expert Class
Posts: 230
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posted April 29, 2011 08:59 PM
quote:
So I should run a thick cometic head gasket?
BTW This is a Velocity Stage 1 Kit retail is $3999
And who stocks the thick gaskets ?
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