How big is safe for nitrous on a Iron Block??
Thread Starter
Joined: Nov 2001
Posts: 8,259
Likes: 4
From: Valrico, Florida
How big is safe for nitrous on a Iron Block?? Some say a 409ci Iron is the biggest you want to go for a huge shot of nitrous.. What do you guys say? I would like to be able to spin the car up to 6500rpm, but if 6krpm is going to be the max for a huge motor then so be it..
I would not bore more than .030 over for big shots Vince. Fuel delivery and tuning are the keys. You can run a 500-shot if you get it set up right. Don't expect to run a stock fuel system ot 28 degrees of timing though 
Thread Starter
Joined: Nov 2001
Posts: 8,259
Likes: 4
From: Valrico, Florida
Originally Posted by Reckless
I would not bore more than .030 over for big shots Vince. Fuel delivery and tuning are the keys. You can run a 500-shot if you get it set up right. Don't expect to run a stock fuel system ot 28 degrees of timing though
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do an independant low pressure fuel system... direct port. or you are going to have tuning nightmares...
Im running a NOS Pro Race Fogger System which is normally good for 300-600 hp. But I went with NOSzels instead of regulare foggers... i run a Jaz Fuel Cell up front, Holley Black Pump and Aeromotive Regulator... just adjust the fuel pressure to 6psi for what type of jets ur running and go from there... gravey.
My buddy runs same setup but with regular foggers on his LT1 355, 250 shot all the time... no probs!
Im running a NOS Pro Race Fogger System which is normally good for 300-600 hp. But I went with NOSzels instead of regulare foggers... i run a Jaz Fuel Cell up front, Holley Black Pump and Aeromotive Regulator... just adjust the fuel pressure to 6psi for what type of jets ur running and go from there... gravey.
My buddy runs same setup but with regular foggers on his LT1 355, 250 shot all the time... no probs!
Vince, are you still running stock injectors? If so, time to change them to at least 36'ers for N/A and the nitrous. Also, I do not think your intank pump is going to be enough. To be safe I would also install an inline pump as well. The guys here running over 600 rwhp were losing pressure with the Walbro alone, most install a BBK inline for safety. I can almost promise that pump isn't going to handle anything over 650 rwhp.
Like Todd said, block thickness, fuel delivery, and TUNING are going to the key. With everything in-line, you should have no problems spraying a 350 shot SAFELY. With a 409 motor making ~500 rwhp, anything over a 350 shot would just be ignorant IMO.
Get off the damn internet and get this motor started
josh
Like Todd said, block thickness, fuel delivery, and TUNING are going to the key. With everything in-line, you should have no problems spraying a 350 shot SAFELY. With a 409 motor making ~500 rwhp, anything over a 350 shot would just be ignorant IMO.
Get off the damn internet and get this motor started
josh
Thread Starter
Joined: Nov 2001
Posts: 8,259
Likes: 4
From: Valrico, Florida
Josh I have more than just a intank.. Getting bigger injectors is a gimme.. C'mon, who do you think I am? Country Boy I am going to do everything right this time around. All the way down to the dual springs..
Getting bigger injectors is a gimme.. C'mon, who do you think I am? Country Boy I am going to do everything right this time around. All the way down to the dual springs.. 
Thread Starter
Joined: Nov 2001
Posts: 8,259
Likes: 4
From: Valrico, Florida
I would love to go boost, but after reading all of you guys woes Bos.. I think I better stick to something less complicated.. Even though I am on my 2nd NA motor I still think I would have spent more money if I had went the FI route..
Originally Posted by VINCE
I would love to go boost, but after reading all of you guys woes Bos.. I think I better stick to something less complicated.. Even though I am on my 2nd NA motor I still think I would have spent more money if I had went the FI route..
