Need educated opinions inside please !!!!!!
Need educated opinions inside please !!!!!! I want to get your opinions on how safe this is. I have a H/C/I 00 SS with 11.2:1 compression. She makes 409/405 on motor. I am also running a TNT wet 100 shot. On the spray she makes 538/709. This is all at the wheels. I also have a Walbro 340 intank pump from ARE installed. I was thinking of jetting up to 150 this weekend and see how the car did. I have a stock bottom end though. I have heard these bottom ends are good to like 560 before they start breaking.
Just an FYI, currently the car is seeing max timing of 22.5* and AF on the 100 shot was 12.0:1. Give me some insight as to my chances of all my pistons living through a TNT 150.
BTw, I have a Ram VDS clutch so Im not concerned with the drivetrain at this point, just my bottom end. TIA
Just an FYI, currently the car is seeing max timing of 22.5* and AF on the 100 shot was 12.0:1. Give me some insight as to my chances of all my pistons living through a TNT 150.
BTw, I have a Ram VDS clutch so Im not concerned with the drivetrain at this point, just my bottom end. TIA
Re: Need educated opinions inside please !!!!!! There's only one way to find out <img src="gr_grin.gif" border="0">
I would say if you keep the bottle pressure low at like 900psi your chances will be good.
Hard to say how much power these engines will take.
Looks like they take alot though <img src="graemlins/fluffy.gif" border="0" alt="[Fluffy]" />
I would say if you keep the bottle pressure low at like 900psi your chances will be good.
Hard to say how much power these engines will take.
Looks like they take alot though <img src="graemlins/fluffy.gif" border="0" alt="[Fluffy]" />
Re: Need educated opinions inside please !!!!!! [quote]Originally posted by Chris G:
<strong>Come on now Ron...isn't that compression closer to 11.5:1? <img src="gr_emb.gif" border="0">
Chris G</strong><hr></blockquote>
Actually stock heads milled .030 and the cam. Its 11.2:1 I dont think .3 compression would make a huge difference anyway in the question Im asking.
<strong>Come on now Ron...isn't that compression closer to 11.5:1? <img src="gr_emb.gif" border="0">
Chris G</strong><hr></blockquote>
Actually stock heads milled .030 and the cam. Its 11.2:1 I dont think .3 compression would make a huge difference anyway in the question Im asking.
Re: Need educated opinions inside please !!!!!! Well, all I can say is that in a few months, I fully intend to find out, as I am going heads/nitrous cam/200-250 shot on stock internals. Shooting for 600+ rwhp. Ask me then. <img src="gr_images/icons/wink.gif" border="0">
- Matt
- Matt
Re: Need educated opinions inside please !!!!!! Im hopin some of the more experienced people will chime in here. I know my tune will hold the power. Timing etc is good. my concern is my stock bottom end and its limits. Im at 538/709 on a 100 shot right now. A 150 shot will put me well over that. Closer to 615rwhp and probably 850rwtq. Thanx again guys. Keep em coming.
Re: Need educated opinions inside please !!!!!! [quote]Originally posted by Trans Am WS6 420:
<strong>Well, all I can say is that in a few months, I fully intend to find out, as I am going heads/nitrous cam/200-250 shot on stock internals. Shooting for 600+ rwhp. Ask me then. <img src="gr_images/icons/wink.gif" border="0">
- Matt</strong><hr></blockquote>
I get first ride
<img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" />
<strong>Well, all I can say is that in a few months, I fully intend to find out, as I am going heads/nitrous cam/200-250 shot on stock internals. Shooting for 600+ rwhp. Ask me then. <img src="gr_images/icons/wink.gif" border="0">
- Matt</strong><hr></blockquote>
I get first ride
<img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" />
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Re: Need educated opinions inside please !!!!!! You'll be in the 700hp+ range with that setup.
Keep us posted on how many runs you get,before BOOM <img src="gr_eek2.gif" border="0">
Keep us posted on how many runs you get,before BOOM <img src="gr_eek2.gif" border="0">
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On The Tree
Joined: Jan 2002
Posts: 120
Likes: 0
From: Aloha, Oregon
Re: Need educated opinions inside please !!!!!! your peripherals may keep up (fuel, timing control) BUT the bottom end will not. i feel you are riding a VERY VERY thin line with that much (700+) torque already. i have tore down quite a few nitrous motors to find the stock rod bearings showing tons of copper due to this amount of torque being applied so harshly. this will cause failure if the bearings spin onto each other. sometimes catastrophic failure, like the rod cap coming off. real bad. if i were you, i would start planning rebuilding the bottom end soon. dont wait till failure. Stock rods arent good for those kind of #'s either. what kind of times are you running? are you using drag tires? this makes a difference as well as to how much punishment the motor will take. bearings get trashed faster when using big tires and big sticky clutches.
Re: Need educated opinions inside please !!!!!! [quote]Originally posted by nitrousc5:
<strong>your peripherals may keep up (fuel, timing control) BUT the bottom end will not. i feel you are riding a VERY VERY thin line with that much (700+) torque already. i have tore down quite a few nitrous motors to find the stock rod bearings showing tons of copper due to this amount of torque being applied so harshly. this will cause failure if the bearings spin onto each other. sometimes catastrophic failure, like the rod cap coming off. real bad. if i were you, i would start planning rebuilding the bottom end soon. dont wait till failure. Stock rods arent good for those kind of #'s either. what kind of times are you running? are you using drag tires? this makes a difference as well as to how much punishment the motor will take. bearings get trashed faster when using big tires and big sticky clutches.</strong><hr></blockquote>
I was thinking along the same lines. Just wanted to hear some opinions. I ran the 100 jets yesterday. Ran an 11.02@127 on ET streets. I think a rebuild is in my near future. Im just debating on what route I want to go. Thanx man.
<strong>your peripherals may keep up (fuel, timing control) BUT the bottom end will not. i feel you are riding a VERY VERY thin line with that much (700+) torque already. i have tore down quite a few nitrous motors to find the stock rod bearings showing tons of copper due to this amount of torque being applied so harshly. this will cause failure if the bearings spin onto each other. sometimes catastrophic failure, like the rod cap coming off. real bad. if i were you, i would start planning rebuilding the bottom end soon. dont wait till failure. Stock rods arent good for those kind of #'s either. what kind of times are you running? are you using drag tires? this makes a difference as well as to how much punishment the motor will take. bearings get trashed faster when using big tires and big sticky clutches.</strong><hr></blockquote>
I was thinking along the same lines. Just wanted to hear some opinions. I ran the 100 jets yesterday. Ran an 11.02@127 on ET streets. I think a rebuild is in my near future. Im just debating on what route I want to go. Thanx man.
Re: Need educated opinions inside please !!!!!! I agree with C5, your pushing the limits now with the massive amount of torque your hitting you main and rod bearings with. One test is to acccelerate hard and watch the oil pressure does it fall off as you accelerate then rise right after letting off? This is a sign of a worn bottom end...Mine does it after running numerous bottles with the 150 shot on stock internals.(not near your numbers) I'd say your setup will hold the horsepower, but for how long? I'd also watch your fuel pressure even with that Walbro, you might need more pump. Be careful!!
TECH Apprentice
Joined: Nov 2001
Posts: 434
Likes: 0
From: ROWLETT TX USA
Re: Need educated opinions inside please !!!!!! I have sucessfully run a 300 shot on a stock bottom end for an extended period of time(probably 20 passes). The major Keys to longevity are good head gaskets, bolts/studs, and ZERO detonation. You will eventually destroy a stock piston due too shear mechanical force. but if you can keep detonation away, and keep the heads from lifting you can definatly run a number. Oh btw, run a heavy wieght racing oil, the shock of a big hit of N20 will damage engine bearings in a hurry!
