nitrous and blower?

[Scharged Caddy]

have a built blower motor with 8:1 ,forged pistons everything with a wieand blower. the boost is maxed at 10 lbs, i was thinking about shooting a nitrous shot to give a little late kick and some intercooling effects. what is the smallest shot needed for cooling effects, and what is the largest shot i could use. thanks

[Physh1]

Well, your not being very specific about your parts. Too general.....

How much power are you putting out now and how does that rate to the capabilites of your rods and crack for example. You'll need more fuel to add to that nitrous.....in theory any amount will help.

cameron

[retorq]

Did the original thread get deleted or something?? There was another reply in here from Goatman I thought.

Yes any amount will help.

You mentioned plumbing it into the intake but I've never seen that setup on a blower app. I've always seen plate setups on blower apps.

[Physh1]

He posted this in like 4 forums......lol...2 are being posted in....

Cameron

[Scharged Caddy]

Well, your not being very specific about your parts. Too general.....

How much power are you putting out now and how does that rate to the capabilites of your rods and crack for example. You'll need more fuel to add to that nitrous.....in theory any amount will help.

cameron

well i have weisco blower forged pistons, with total seal moly rings, eagle I beam forged rods, roller blower cam, eagle 4340 stroker crank. cranks rated at 750hp, rods are 550hp and pistons dont have a rating. i think i have around 400 hp but im not sure. i dont think im near the parts threshold. im running a 383 with 8.2:1, .500 lift blower cam, and 10 lbs of boost at 6k.

[Goatman]

I wouldn't go more than a 100 shot.

Nitrous is much more violent than a forced induction combination. The cooling effect it has is negligible compared to the tuning issues you'll have.

[Scharged Caddy]

I wouldn't go more than a 100 shot.

Nitrous is much more violent than a forced induction combination. The cooling effect it has is negligible compared to the tuning issues you'll have.

what should i do for tuning? where should i inject the nitrous? im not to crazy about it going threw the blower.

[retorq]

I've never seen a blower motor with a directo port setup, I'ld venture to say it's not possible.

[blown68ssrs]

Check out NOS p/n:13350-nos. I have this set up on my Pro-Street Camaro. I ran 34 square on jet size under a 110% overdriven 6-71 big block. The nitrous set up puts the 3800 lbs car in the 9's at a 3,500 feet track. Make sure you have a dedicated fuel system for the NOS (run C16). Have a timing retard box. One of the problem with Nitrous that I found is, it is very unforgiven. In most cases, you will only hear your engine rattle once. However, $ for $ you can't beat it. For a heavy vehicle, it is very effective to get the vehicle out of the hole quick before the supercharger spools up. Good luck.

[onemean97]

I don't think there are that many tuning issues with nitrous. It adds it's own fuel, all you really need is a colder plug and pull a little timing. oh and a strong motor!!!

[Goatman]

I don't think there are that many tuning issues with nitrous. It adds it's own fuel, all you really need is a colder plug and pull a little timing. oh and a strong motor!!!


You are out of your mind. :hack:

White, the ideal spot would be to inject after the blower, but that always isn't practicle. If it were me, I'd buy an intercooler before using nitrous as a "coolant", but, if that's what you want, then I sugeest you invest in either a wide band O2 kit or at the very least a set of EGT probes till you get your tuning issues straight. Since you are using a carb, it will not correct itself like a fuel injection system would (to a small degree), so I would start EXTREMELY small with the tune up and then go from there. Remember, take 2 degrees of timing out for every 50 hp you add.

[retorq]

This sits on top of the blower, correct??

Check out NOS p/n:13350-nos. I have this set up on my Pro-Street Camaro.

[wkdspd]

we have plated several blowers, in single and dual apps, up to 150 hp per plate, check out my website under "shane" in the staff section for one of them. for setups like yours we've had great results with a 50-75 shot plated, drawing fuel off the main line before the regulator. it cools the blower rotors and case offering extended runs (highway) without heatsoaking the blower and excellent holeshots with gained power in the range of 10% over the rating. everyone is correct, be very careful and dont be greedy as you only get one shot to screw a ring land or rotor, but with the right combination it works just as well and often better than an intercooler in single-use applications.

[Scharged Caddy]

You are out of your mind. :hack:

White, the ideal spot would be to inject after the blower, but that always isn't practicle. If it were me, I'd buy an intercooler before using nitrous as a "coolant", but, if that's what you want, then I sugeest you invest in either a wide band O2 kit or at the very least a set of EGT probes till you get your tuning issues straight. Since you are using a carb, it will not correct itself like a fuel injection system would (to a small degree), so I would start EXTREMELY small with the tune up and then go from there. Remember, take 2 degrees of timing out for every 50 hp you add.

they dont offer an intercooler for my blower. i was thinking water injection. does that make a difference? does it add anything? and how effective is it? i know it is safer

[96ImpSS]

.....The cooling effect it has is negligible compared to the tuning issues you'll have.
:wtf: I don't know how you can say the cooling effect is negligible.
On a non-intercooled centrifugal setup, you typically get a 75 hp gain from a 50 shot and over 100 from a 75 shot. The "bonus" power is from the cooler charge. I don't see why it shoud be much different with a roots blower.
For any tuner worth his salt, tuning for nitrous is a PIECE OF CAKE compared to PROPERLY tuning for a S/C. All you have to worry about is WOT !

[RATFINK]

For any tuner worth his salt, tuning for nitrous is a PIECE OF CAKE compared to PROPERLY tuning for a S/C.

In the hands of a novice nitrous is the most destuctive mod I have ever seen.

Used correctly and installed properly it works extremely well, but in the hands of an apathetic novice all you get is scrap metal.

[00silverado5.3]

You can try water/ alcohol injection

[Scharged Caddy]

You can try water/ alcohol injection

what do you get out of water injection? any hp? also is it worth it

[onemean97]

The water injection itself isn't worth any horsepower other than you can run more boost w/o detonation. Maybe a little cooler inlet temps.