• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

The squeeze!

Bio248 said:
the e85 is being used as a fuel. its being injected in the cylinders. it wont contact the nitrous until the cylinders. nitrous is fine through the rotors. tons of people have done it.

if im missing something, please explain.
Click to expand...

i think he is saying since it will be a wet kit, the fuel(e85) will hit the rotors just as the nitrous does.
 


i dont know how wet kits work exactly, but i thought you sprayed it into the fuel rails and if that is the case neither the fuel nor the nitrous is going through the blower.
 
Nah, wet kits are mixed at the nozzle... so instead of just nitrous at the nozzle it will have two lines and it will be fuel (E85) and nitrous (n2o) goin thru it
 
well in that case i wouldnt spray it through the blower. spraying e85 through the blower SHOULD be okay, but im not sure id want to be a test dummy to see if e85 was detrimental to the rotors. however, the rotors are pretty robust when coated correctly so who knows, it could be just fine.
 


Well i thought everyone knew what wet kits were... there are dry, wet, and direct port so pretty basic set ups between them all. So my bad didnt know everyone thought wet set ups were direct ports
 
u guys got it half right and half very wrong and if u try half of these ideas U WILL HAVE AN ENGINE FIRE AND LIKELY RUIN UR ENGINE!!! If ur putting nos on a car that has a throttle body injection u can put ur wet system there because the intake is designed to have fluid/gas run through it. but the 3800 has multi port fuel injection ur intake is designed for just air if u put gas in it,it won't flow correctly, it will sit there in lil pockets, boil and explode. If u want to try nos, water/meth there's a book I picked up a few years back at Barnes and noble its called "supercharging, turbocharging & nitrous oxide performance handbook" its not some auto zone put some bling in ur ride bull its a 160pg txt book buy it!
 
all charged up said:
u guys got it half right and half very wrong and if u try half of these ideas U WILL HAVE AN ENGINE FIRE AND LIKELY RUIN UR ENGINE!!! If ur putting nos on a car that has a throttle body injection u can put ur wet system there because the intake is designed to have fluid/gas run through it. but the 3800 has multi port fuel injection ur intake is designed for just air if u put gas in it,it won't flow correctly, it will sit there in lil pockets, boil and explode. If u want to try nos, water/meth there's a book I picked up a few years back at Barnes and noble its called "supercharging, turbocharging & nitrous oxide performance handbook" its not some auto zone put some bling in ur ride bull its a 160pg txt book buy it!
Click to expand...

that is a very good point, but ive run a 100 shot through the TB for 2 years straight and never had any issues(with nitrous). Im not sure how e85 would do. I will definately pick up this text. Thanks for the reference.
 
Who sprays gas into their throttle body...wth are you talking about?

Just an FYI, the 3800 supercharged L67/L32 injector bosses are the heads. The L36/L26 injectors are in the Lower Intake Manifold...I've read your two posts...some makes sense...some doesn't. I'm not sure your understanding the fueling system here. Most nitrous plates for the 3800 applications are post TB...pre-blower...they use a tapped TB Spacer.
 


If that were true why is everyone running wet setups through their throttle bodies on mpfi? In my town alone we have mustangs, f-bodies, trucks, TPI's, imports, and anything and everything with mpfi running wet nitrous kits. Not one person has had an issue except for one carb'd car that accidentally hit his nitrous doing a burn out. If you know what your doing and spray at the proper times there shouldnt be an issue. I'm guessing the vacuum created in the intake sucks the nitrous mix just fine. Its not like pissing in an intake where liquid is condensed. Its a mist that yes can puddle but most likely improper use causes a nitrous backfire. Improper rpms, fueling, timing, etc, etc... Another thing going back onto the subject of our car... we have more of a vacuum sucking the air in naturally so i doubt there would ever be puddling. There is suction in the housing and compressing in the lower intake both of which i highly doubt there would be anytime for puddling due to the air moving so fast. I dunno correct me if im wrong but those are my thoughts on the ordeal.
 
Nitrous is for women anyways...or if you've maxed everything out and you need to go that LITTLE bit faster IMO.

Go motor or add some boost...or go home. I dislike nitrous plenty.
 
Well don't listen to me I only referenced txt books and logically assumed that GM wouldn't have spent extra time and money to machine parts that weren't designed to flow fuel to flow fuel. Listen to the guy who said everyone else does it and only one other guy blew his motor after all he did have that insightful rant about vacuum and flow on a motor with a positive pressure screw type blower.
 
As far as e85 goes it won't hurt anything that gas won't hurt but if some one u know broke their rotors after spraying past them my guess is detonation killed em not e85. As for water/meth injection it will cool ur intake and raise ur octane ~10pts it won't raise ur compression by any noticeable amount probably a fraction of a point. So its like running an iced water/air intercooler with 115 octane race gas only u don't have a 55 gallon tub of ice sitting shotgun and u only pay for premium gas and some washer fluid cause guess what its meth and water. U will see HP gains from this too, comparable to an intercooler and race gas.
 
compression?

Are you sure you know what you're talking about?

Because compression is SET based on the pistons, crank/rods, and heads/head gaskets...
 


Some body said that the meth/water would raise compression my guess is they were thinking that liquids don't compress so they would affect compression by taking up space kinda like domed pistons do maybe u should read all the posts b4 u "question my authoritay!"
 
I can question your authority because anyone who is articulate enough to have a great understanding of these concepts would also be able to spell properly...

But anyways, meth is misted which means atomization which means it consumes very little volume. Not dumped in.

Lets look at how much gas is used in one cylinder in a 3800 series II not factoring in VE or boost... lets assume it has a VE of 100 and is N/A.

so.... bore is 97 mm stroke is 86 mm

so volume is 635 780 mm^3 or 635.78 cm^3 or 0.63578 L

AFR lets say is 12:1

Assume the air in the cylinder at BDC is under zero pressure.

So skipping the step where we consider the volume of the fuel...

.64 L of air has a mass of 0.768 g.

so we need 0.064 g of gasoline for that one cylinder.

Gasoline just happens to be around 614.35 times more dense than air.

So this means the gasoline to maintain a 12:1 AFR for one cylinder in a 3800 series II would take up 0.047 mL.

0.047 mL in 0.63578 L is 7.39249426 × 10-5 percent.

without scientific notation thats 0.000074 percent.

I HIGHLY doubt that you're going to notice that.... And I would think that you would be using less meth than gas when going WOT.
 
Also when that percentage approaches zero you can consider it negligible...

So how negligible must the volume of the meth be then? :D
 
You must log in or register to reply here.
Back
Top