100,000 mile rods - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Muzzy · 03-28-2003, 10:05 PM

think rods with that many miles can handle up to 10psi of boost...(not constantly 4 normaly) so wut do u think??

240racer · 03-28-2003, 10:55 PM

Mine have 150,000 and I'm shooting for 15psi. If you don't plan on revving higher then 7200, stock redline, then you should be fine, that's what puts the most stress on the rods. They are pretty solid rods from the factory, forged and shot peened.

Dennis from unstable-hybrids has been running 350hp on his stock internals, so that means rods. The pistons are just fragile and not resistant to detonation. The rods don't take the brunt of that problem. It can weaken them though. Most often a rod breaks in tension, not buckling (compression) so that isn't because of making power, it's because the piston is heavy and it's trying to pull it down really fast. The speed that it pulls it down is dependant on rpm. They also often break due to spun bearings or lack of oil and other bearing related problems.

syco3d · 03-29-2003, 01:35 AM

240 Racer: If you happen to know off the top of your head, what kind of turbo set-up is Dennis from unstable-hybrids running?

It's just that I'm looking at going KA-T fairly soon, and 350hp has been my goal. So as I start gathering info on parts and prices, it's nice to know what other people have done to achieve that power...

240racer · 03-29-2003, 02:34 PM

Quote:

Originally posted by James
Regardless of miles- do a compression check and see if it checks out. That is the deciding factor.

I don't think he is planning on using the stock pistons, he just wants to reuse the rods. That's what I did, I have arias pistons and I am using stock rods as well.

Dennis is running a JWT ecu with a stock motor and probably a kinda custom turbo setup. I think he has cobra maf and 50lb injectors. do a search for the cobra maf and 550cc injector thread and you will find about 3 pages of goodies.

Muzzy · 03-29-2003, 02:40 PM

yea i was just gonna go with some ross pistons and keep my stock rods if i could

syco3d · 03-29-2003, 08:06 PM

Quote:

Originally posted by 240racer
[Bdo a search for the cobra maf and 550cc injector thread and you will find about 3 pages of goodies. [/B]

Thanks alot man...I've always known to use the almighty search button, just a question on what to search for.

d240t2 · 03-31-2003, 12:23 PM

Some info on my car is on the website, www.unstable-hybrids.com under projects. Stock engine, cams, JWT ECU, 50lb injectors, etc.

Dennis

03-28-2003, 10:05 PM	#1
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	100,000 mile rods think rods with that many miles can handle up to 10psi of boost...(not constantly 4 normaly) so wut do u think?? __________________ lemme have a dollar

03-28-2003, 10:55 PM	#2
240racer Zilvia Junkie Join Date: Nov 2001 Location: Minneapolis, MN Age: 46 Posts: 574 Trader Rating: (0) Feedback Score: 0 reviews	Mine have 150,000 and I'm shooting for 15psi. If you don't plan on revving higher then 7200, stock redline, then you should be fine, that's what puts the most stress on the rods. They are pretty solid rods from the factory, forged and shot peened. Dennis from unstable-hybrids has been running 350hp on his stock internals, so that means rods. The pistons are just fragile and not resistant to detonation. The rods don't take the brunt of that problem. It can weaken them though. Most often a rod breaks in tension, not buckling (compression) so that isn't because of making power, it's because the piston is heavy and it's trying to pull it down really fast. The speed that it pulls it down is dependant on rpm. They also often break due to spun bearings or lack of oil and other bearing related problems. __________________ Adam '89 coupe KA24DE+T 14.1 @ 104 MPH '88 Celica All-Trac turbo stock, but no more ecu codes!! Last edited by 240racer; 03-28-2003 at 10:57 PM..

03-29-2003, 01:35 AM	#3
syco3d Zilvia Junkie Join Date: Dec 2002 Location: Topeka, Ks Age: 41 Posts: 363 Trader Rating: (0) Feedback Score: 0 reviews	240 Racer: If you happen to know off the top of your head, what kind of turbo set-up is Dennis from unstable-hybrids running? It's just that I'm looking at going KA-T fairly soon, and 350hp has been my goal. So as I start gathering info on parts and prices, it's nice to know what other people have done to achieve that power... __________________ Gimme a "A"! Gimme a "P"! Gimme a "C"! What does that spell? CRAP!

03-29-2003, 02:40 PM	#5
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	yea i was just gonna go with some ross pistons and keep my stock rods if i could __________________ lemme have a dollar

03-31-2003, 12:23 PM	#7
d240t2 Zilvia Member Join Date: Mar 2002 Location: Atlanta, GA Age: 44 Posts: 205 Trader Rating: (0) Feedback Score: 0 reviews	Some info on my car is on the website, www.unstable-hybrids.com under projects. Stock engine, cams, JWT ECU, 50lb injectors, etc. Dennis