Author Topic: Nitrous Oxide fogger nozzle location, CB750 (Read 8034 times)

dragracer · « **on:** October 29, 2013, 10:10:00 PM »

Just curious where any of you have placed your nitrous fogger nozzles on a CB750. I did a quick search here but saw nothing legitimate. Thinking about going directly into the intake on the head but am also considering the boots for easier access.

Any one have a picture of their installation on a SOHC??

Thanks,

Sam Green Racing · « **Reply #1 on:** October 30, 2013, 10:07:15 AM »

I'm not sure anyone has a nitrous bike on here Frank.
I guess we could ask Gary Pena.

Sam.

madmtnmotors · « **Reply #2 on:** October 30, 2013, 10:47:36 AM »

Mmmmmmmmmmm..... Nitrous..........

raymond10078 · « **Reply #3 on:** October 30, 2013, 11:15:20 AM »

The only one I've seen - put the fogger in the pod air filter top (farthest away from the carb inlet).

sohc boy · « **Reply #4 on:** October 30, 2013, 12:46:33 PM »

used some NOS yr's ago just drilled a hole in manifold rubber ,stuck fogger's in there, didnt have a problem

MRieck · « **Reply #5 on:** October 30, 2013, 12:52:56 PM »

Scroll down to the bottom of the page Frank...you can see how the finning was milled away on the bottom of the intake tracts. Just don'remove as much material to give you more thread bite. http://forums.sohc4.net/index.php?topic=109584.300

754 · « **Reply #6 on:** October 30, 2013, 03:49:13 PM »

On Weber manifolds, just drill and tap..
On stock carbs. Can you put anything into the synch screw holes ? ? or maybe a bad idea..?

dragracer · « **Reply #7 on:** October 30, 2013, 05:30:10 PM »

Quote from: MRieck on October 30, 2013, 12:52:56 PM

Scroll down to the bottom of the page Frank...you can how the finning was milled away on the bottom of the intake tracts. Just don'remove as much material to give you more thread bite. http://forums.sohc4.net/index.php?topic=109584.300

Thanks Mike. Not seriously planning to add nitrous to anything yet. I'll need a much stronger bottom end before contemplating spray on an SOHC.

Waiting for Bill to finish that stroker build so i can follow his lead. THEN, n2o here we come.

johno · « **Reply #8 on:** October 30, 2013, 08:14:21 PM »

Pete, just wondering on your honda nitrous photo, have you got enough wires and hoses happening

do you need a electricians licence for that baby

joe p · « **Reply #9 on:** October 31, 2013, 04:02:11 AM »

Quote from: sohc boy on October 30, 2013, 12:46:33 PM

used some NOS yr's ago just drilled a hole in manifold rubber ,stuck fogger's in there, didnt have a problem

I did the same. With 18 and 21 jets in each carb it made about 50+hp and I broke three transmission in one season, but I was about 250lbs

sohc boy · « **Reply #10 on:** October 31, 2013, 01:29:23 PM »

Quote from: johno on October 30, 2013, 08:14:21 PM

Pete, just wondering on your honda nitrous photo, have you got enough wires and hoses happening do you need a electricians licence for that baby

yea got real complicated that bike, dont know what i was thinking ,Hilborn inj, nitrous ,busted few tranny's , melted few valves an pistons ,reved its nuts off though

dragracer · « **Reply #11 on:** October 31, 2013, 04:51:37 PM »

Did either of you use a progressive controller with a timing retard box or go 100% off a button or timer??? I intend to install a progressive controller, delay the nitrous off the line ,start at 25% and ramp it up down the track as I pull timing out by stages through gear shifts by gear position

joe p · « **Reply #12 on:** October 31, 2013, 05:18:15 PM »

Quote from: dragracer on October 31, 2013, 04:51:37 PM

Did either of you use a progressive controller with a timing retard box or go 100% off a button or timer??? I intend to install a progressive controller, delay the nitrous off the line ,start at 25% and ramp it up down the track as I pull timing out by stages through gear shifts by gear position

No, I don't think they had them back then LOL! 100% all the way.

sohc boy · « **Reply #13 on:** October 31, 2013, 06:41:38 PM »

Quote from: dragracer on October 31, 2013, 04:51:37 PM

Did either of you use a progressive controller with a timing retard box or go 100% off a button or timer??? I intend to install a progressive controller, delay the nitrous off the line ,start at 25% and ramp it up down the track as I pull timing out by stages through gear shifts by gear position

.... 100% off the line ..... notking like that then , i use a two stage set up on a 4valve honda ,which was interesting ,broke 8" tire loose at half track ,had it wired up for third gear off the shift drum

MRieck · « **Reply #14 on:** October 31, 2013, 06:49:29 PM »

Quote from: dragracer on October 31, 2013, 04:51:37 PM

Did either of you use a progressive controller with a timing retard box or go 100% off a button or timer??? I intend to install a progressive controller, delay the nitrous off the line ,start at 25% and ramp it up down the track as I pull timing out by stages through gear shifts by gear position

You need the progressive box....I had problems on my street FJ with nitrous and no progressive feed.

dragracer · « **Reply #15 on:** October 31, 2013, 07:47:59 PM »

Yes, i have done this a time or two- lol. Since i'm not using a wheelie bar it wouldn't be practical for me to spray the bike right off the line. Tranny problems shouldn't be a major issue because i'm running a street tire with the progressive. I'm more concerned about clutch slippage down track as the nitrous power increases given the fact that i don't have a lockup clutch.

joe p · « **Reply #16 on:** November 01, 2013, 03:42:29 AM »

I wish they had loukup clutch when I raced my CB750. My clutch would start to slip. I could run 10.65 at first and at the end of the day in 11.xx. The bike after sitting all night and cooling off would run 10.65 the next day. I would drop my ET ever race.

dragracer · « **Reply #17 on:** November 01, 2013, 08:38:40 AM »

Did you run 10.60's on nitrous or was that all motor???

joe p · « **Reply #18 on:** November 01, 2013, 09:09:20 AM »

That was all motor. I put Nitrous Oxide on it to try and run SG at IDBA.

dragracer · « **Reply #19 on:** November 01, 2013, 09:42:23 AM »

Quote from: joe p on November 01, 2013, 09:09:20 AM

That was all motor. I put Nitrous Oxide on it to try and run SG at IDBA.

Cool. What size motor and was that with a bar and slick??

joe p · « **Reply #20 on:** November 01, 2013, 10:30:20 AM »

That motor was a 900, bar and slick 5.5 GY with 1.4X 60s. It had 1000 stroker pistons. 1/4inch over Gold rods with a stock crank. RC head with 327 cam. I turn it up to 12,500rpm in 5th.

754 · « **Reply #21 on:** November 01, 2013, 02:50:06 PM »

Did you run a stroker plate or shim under barrel ?
I figured I ran my 315 to around 11,500 a lot but reading on this forum some seemed to think it was high. I thought it was just part of running a cam..

joe p · « **Reply #22 on:** November 01, 2013, 08:01:29 PM »

Actually I had to cut it down. These pistons had the pin in the oil rings. This was one of Brent Adams setup. I had a 1080 that ran the same number, but it lasted longer. I shift a motor at the RPMs that make it run the fastest.

Hondell · « **Reply #23 on:** November 18, 2013, 01:51:15 PM »

Hi there

I just saw your post. I have nitrous on my 836. I made my own combo nozzles that reach into the carb mouths just before the slides. Works very well and I can show you how it's done when I have time if you're interested.

dragracer · « **Reply #24 on:** November 18, 2013, 07:14:46 PM »

Quote from: Hondell on November 18, 2013, 01:51:15 PM

Hi there

I just saw your post. I have nitrous on my 836. I made my own combo nozzles that reach into the carb mouths just before the slides. Works very well and I can show you how it's done when I have time if you're interested.

It looks like you're using the air filter pods to place the fogger nozzles. Is that correct??

News:

Author Topic: Nitrous Oxide fogger nozzle location, CB750 (Read 8034 times)