droped valve

chriswao · March 11th, 2009, 09:43 AM

at the track saturday and had a nitrous explosion and droped a valve. 351 cleavland stroker 377. Second time this has happend, should I give it one more try or go the cheaper way with the Windsor?

superbean · March 11th, 2009, 10:00 AM

Use those cleveland heads, put it on a windsor block with a funnel web intake.

chriswao · March 11th, 2009, 10:06 AM

I dont want to loose the power I make with the cleveland tho. Im maken right at 700 hp to the flywheel........or was

chriswao · March 11th, 2009, 10:10 AM

but If its gona happen again then I might as well build the cheaper one and take a lil loss

superbean · March 11th, 2009, 10:13 AM

what power will you loose? It's the same cyl heads, on the same cubic inches. If anything youll make more power.

chriswao · March 11th, 2009, 10:17 AM

but can the windsor block hold the horse power that I was maken with the 300 shot of nitrous?

superbean · March 11th, 2009, 10:22 AM

Originally Posted by chriswao

but can the windsor block hold the horse power that I was maken with the 300 shot of nitrous?

can a stock cleveland block? I doubt it

Run a dart block.

chriswao · March 11th, 2009, 10:26 AM

Im not haveing any prob with the block its the aluminum four barrel closed chamber heads that are giving me prob

superbean · March 11th, 2009, 10:28 AM

well then you need to either change the compression ratio of the motor, or the style of nitrous your using.

I assume your hitting it with a cheater plate?

chriswao · March 11th, 2009, 10:30 AM

yea right off the trans brake, one gun

superbean · March 11th, 2009, 10:37 AM

That's harsh man.. Honestly You should look into some better springs and adding more ptv clearance if your going to be spraying it that hard.

Can you give me a list with your full setup?

chriswao · March 11th, 2009, 10:58 AM

four bolt main 351 clev, aluminum heads 4 barrel closed chamberd heads, 377 stroker kit from jegs, pop top forged pistons, 730 lift nitrous cam, jessel rods lifters crane lifers and retainers, Forged Crankshaft, single plain sheet metal intake holly 750 double pumper, c4 with trans brake, digital 6 msd, blaster 2 coil, msd dist, long tube crook headers

M L Struck · March 11th, 2009, 10:58 AM

Originally Posted by superbean

what power will you loose? It's the same cyl heads, on the same cubic inches. If anything youll make more power.

Make more power

not even close, a stock 351C block can hold 1000hp , heads flow as good as any windsor out there.You just need to work out you nitrous problems and double check yourvalve train springs,keepers,retainers,ect.

chriswao · March 11th, 2009, 11:04 AM

so you think its in my nitrous? maybe I sould put it back together like I had it and run two stages? I didnt think windsor blocks could hold as much

89LX347 · March 11th, 2009, 11:22 AM

Originally Posted by superbean

That's harsh man.. Honestly You should look into some better springs and adding more ptv clearance if your going to be spraying it that hard.

Can you give me a list with your full setup?

what are you talking about? just cause he has a lot of nitrous doesnt mean he needs bigger ptv clearance, especially if you dont know his cc ratios, or his flycuts anyway. and clevelands are WAY better than windsors

89LX347 · March 11th, 2009, 11:24 AM

Originally Posted by chriswao

at the track saturday and had a nitrous explosion and droped a valve. 351 cleavland stroker 377. Second time this has happend, should I give it one more try or go the cheaper way with the Windsor?

why did you have a nitrous explosion? rev it too high and hit the limiter? might look into a window switch.

Iwannagofast · March 11th, 2009, 11:27 AM

wud some stiffer springs help?

chriswao · March 11th, 2009, 11:55 AM

What Im thinking happend is right after the 60 foot I had to have got into somthing on the track and got on the rev limit but I never herd it till the explosion. It got the cylinder wall pretty bad and the head is gone, spark plug looks like a dime now freaken sucks. it wasnt even a race i was in test n tune

superbean · March 11th, 2009, 12:15 PM

Originally Posted by 89LX347

what are you talking about? just cause he has a lot of nitrous doesnt mean he needs bigger ptv clearance, especially if you dont know his cc ratios, or his flycuts anyway. and clevelands are WAY better than windsors

Not arguing clevelands arent superior, they are in many many ways. He just asked about going to a windsor block because of the cost effectiveness. If he's going to be spraying that hard out the gate, a little extra ptv clearence wont hurt anyone.. Nitrous does some weird shit sometimes.. I would reccomend putting it back together with the best damn valve springs you can buy.

a 2 stage kit would probably help..

93mustank · March 11th, 2009, 12:16 PM

Im guessing its valve train issues.....bad springs...the explosion was the valve dropping not nitrous

March 11th, 2009, 09:43 AM	#1
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	droped valve at the track saturday and had a nitrous explosion and droped a valve. 351 cleavland stroker 377. Second time this has happend, should I give it one more try or go the cheaper way with the Windsor? Last edited by chriswao; March 11th, 2009 at 09:53 AM.

March 11th, 2009, 10:00 AM	#2
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	Use those cleveland heads, put it on a windsor block with a funnel web intake. __________________ weeee foooord!

March 11th, 2009, 10:13 AM	#5
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	what power will you loose? It's the same cyl heads, on the same cubic inches. If anything youll make more power. __________________ weeee foooord!

March 11th, 2009, 10:28 AM	#9
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	well then you need to either change the compression ratio of the motor, or the style of nitrous your using. I assume your hitting it with a cheater plate? __________________ weeee foooord!

March 11th, 2009, 10:37 AM	#11
superbean Hardcore Enthusiast 1998 Cobra 13.24@105.66 Join Date: Aug 2008 Location: North Carolina Posts: 1,778 iTrader: 0 reviews	That's harsh man.. Honestly You should look into some better springs and adding more ptv clearance if your going to be spraying it that hard. Can you give me a list with your full setup? __________________ weeee foooord!

March 11th, 2009, 10:06 AM	#3
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	I dont want to loose the power I make with the cleveland tho. Im maken right at 700 hp to the flywheel........or was

March 11th, 2009, 10:10 AM	#4
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	but If its gona happen again then I might as well build the cheaper one and take a lil loss

March 11th, 2009, 10:17 AM	#6
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	but can the windsor block hold the horse power that I was maken with the 300 shot of nitrous?

March 11th, 2009, 10:26 AM	#8
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	Im not haveing any prob with the block its the aluminum four barrel closed chamber heads that are giving me prob

March 11th, 2009, 10:30 AM	#10
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	yea right off the trans brake, one gun

March 11th, 2009, 10:58 AM	#12
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	four bolt main 351 clev, aluminum heads 4 barrel closed chamberd heads, 377 stroker kit from jegs, pop top forged pistons, 730 lift nitrous cam, jessel rods lifters crane lifers and retainers, Forged Crankshaft, single plain sheet metal intake holly 750 double pumper, c4 with trans brake, digital 6 msd, blaster 2 coil, msd dist, long tube crook headers

March 11th, 2009, 11:04 AM	#14
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	so you think its in my nitrous? maybe I sould put it back together like I had it and run two stages? I didnt think windsor blocks could hold as much

March 11th, 2009, 11:55 AM	#18
chriswao Regular 1989 mustang gt 8th 5.70 Join Date: Feb 2009 Location: savannah Posts: 197 iTrader: 0 reviews	What Im thinking happend is right after the 60 foot I had to have got into somthing on the track and got on the rev limit but I never herd it till the explosion. It got the cylinder wall pretty bad and the head is gone, spark plug looks like a dime now freaken sucks. it wasnt even a race i was in test n tune

March 11th, 2009, 12:16 PM	#20
93mustank Banned Join Date: Aug 2008 Location: Phoenix,AZ Posts: 3,014 iTrader: 1 reviews	Im guessing its valve train issues.....bad springs...the explosion was the valve dropping not nitrous __________________ PeteAndersonRacing.com

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