i was just wondering if any of you guys here are spraying through a weiand 142 or =. i was thinking of a small 50 shot for kicks. i heard that spraying through a blower that you might notice it more and dont need as big of shot. any comments on this topic would be great

 

it's been done

 

of course it has been done.. , but ya.. it will help. what it basically does is reduce the heat in the blower so you actually get cold air into the cyls instead of hot air (blowers do generate a bit of heat) there are plates that you can get for them. like i kow off hand the 6-71 has a plate that sits under the twin carbs... supposed to work very nicely.

 

so you're saying that you can use Nitrous Oxide to actually cool the blower instead of intercooling it or would using both seem like a reasonable idea to cool the blower.me personally i really don't like nitrous because it's merely fuel.all you do is bolt a bottle up,run a few lines in certian places and you have to change fogger nozzles to get more power.and as far as i know it's not really all that good for torque,top end yes but as far as i know torque is low with nos

 

for that blower get a under carb kit http://www.nitrousexpress.com/Pages/...ventional6.htm

It will cool the aircharge some and contary to what The Exorcist said there will be a big spike in torque when you hit the botton. If you want to get fancy you could use alcohol for the fual enrchment for the nitruos. That would pull alot of heat out of the aircharge. You would need a sepert fual system and proper parts to handal the alcohol

 

yep. i agree with the last post.. pretty much cooling that charge will net you a bunch along with the extra nitrous to really make it go... lol

 

hey sorry i was wrong but usin alcahol and or nitromethene sounds like a good idea.but it's more expensive than gas.

 

The amount of alcahol he would be using wouldn't cost much. As for nitromethene, i'd stay away from that stuff unless you know what your doing. Nitro is very expensive even is small amounts.

 

not to mention an early death to parts

 

I've been thinking about doing that with the 142-blown motor in my Malibu. Just haven't gotten around to it yet. Plus I'm running hypereutectic pistons in it right now. They're living just fine but it wouldn't take much detonation to cause a problem with them. I'd probably put in forged slugs before I tried running two power-adders at once. Lots of chances to get the tune wrong somewhere, have a little detonation and blow the motor to smithereens.

I've done plenty of nitrous setups.

I'm now getting pretty familiar with roots blower setups.

That doesn't mean I know anything about what would happen if I ran them both at the same time. I have an IDEA. Probably, I'm in the ballpark. But the devil is always in the details. And there's always a learning curve.

 

thanks for the info, damon. this is a little off topic, but i have a demon 750 carb and am wondering how much to jet up for the weiand. i dyno'ed it last month and need to jet up the secondaries two sizes. should i also jet the pri's the same amount? with the blower on the new engine should i plan on jetting up a little more due to the boost. i know i have to lower the timing due to it beening higher for n/a. i also have coming a msd 6btm. any help would be great

 

Just to be on the safe side I'd jet it up about 3 sizes on both primary and secondary side from where you are now N/A.

 

Nitrous gives you tons of low end torque. Nitrous cars have the hardest launches. And yes running nitrous through the blower will work great. Nitous works better than an intercooler since nitrous comes out around -127 degrees. It normally decreases intake charge 75 degrees.

Dan

 

20% Nitro Methane for R/C cars is 20 bucks a gallon.