I am thinking of switching to carb, and using keith black forged pistons, with my stock rods can I use a 175 shot of nos? will they hold that kind of power?

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Bright red 87 GTA with 350 tuneport. Basic mods such as K&N filter, Flowmasters, Wells MAF, TPIS air foil, Accel 8.8mm plug wires with , Accel distributor cap and rotary buttons.Gutted cat. B&M Shift kit, 100HP shot Nitrous, soon to change over to carburator.

 

They probably would for a while, but for about $45, I think I would put some ARP's in. If you have to change the pistons, you'll already be there anyway. That's cheap insurance, less than the wrecker bill for a tow home .

 

He's talking about rods not rod bolts. Rods better be more expensive than just 45 dollars. LOL

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92 Z28 L98 350
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Ported and polished heads, ported stock TPI base, ported plenum, Comp Cams XR270HR-10 cam (lift .495/.502 duration 218/224 lobe separation 110), Edelbrock TES headers, LT4 valve springs, Crane AFPR, Flowmaster catback with LT1 style tips, MSD coil & wires...

"Take that auto, drop it in first, hold the brakes, stomp the gas and grin from ear to ear! :-)

 

well, yeah, ur gonna want to switch to a better rod... it will be a bit more money, but with a nitrous shot like that, i would say ur stock rods will eventually break. they are supposed to be good till about 400hp... for a street motor.... but even then, at 400hp, ur takin a chance...

Steve

 

Brandon, you can make the stock rods live comfotably with a 175 shot. I'd consider forged pistons over the KB hypereutectic pistons. If you swap out to ARP or similar rod bolts and polish the beams your rods should be ok. Nitrous usually wreaks havoc with pistons, whilst high RPM blasts are usually the killer for rods.

 

Stock factory rods can take more abuse than most people will believe. Other parts such as pistons and rod bolts will usually let go before you damage a rod. If you have ARP bolts and forged pistons then the rods become the weak link in the system. I'd guestimate 500 HP would be acceptable. My engine was pushing close to that when I blew it up and it wasn't a rod failure but rod bolts and cast pistons. Adding a huge dose of NOS or supercharging may put too much pressure on the rods. A typical 150 shot of NOS will not hurt a good engine.

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Stephen's racing page

87 IROC-Z Pro ET Bracket Race Car and knocking on the SuperPro ET class
383 stroker (carbed) with double hump cast iron heads and pump gas
LS6 Big Block buildup now in progress

Best results before the engine blew up
Best ET on a time slip: 11.857
Best corrected ET: 11.163
Best MPH on a time slip: 117.87
Best corrected MPH: 126.10
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!

Member of the Calgary Drag Racing Association