Oh your spinning it out a lot more than me as well. Im sure we also have a different exhaust setup. I cant wait to put my ported head on

 

ur right ull prob go from 300hp to like 400...... minimum......rofl

 

ya they make a sig difference, esp with your set up in your sign.

 

e85 reduces internal temperatures and has a higher octane than gasoline and reduces kr, has nothing to do with your blower or IAT's. a 2.5" would be fun from stop light to stop light, Frankly you would be over spinning your blower with that low of a pulley and at higher speeds it wouldn't be very effective. I plan on going with a 2.7" pulley which from what I gathered is almost perfect for my e85 and current setup. If I was going to go with any lower I would probably port my head (still am anyways), but just to reduce some pressure and increase cfm's

O.P what happens when you run out of Meth? can't go fill it up at the gas station that's for sure..

 

Hey slowline since you like to talk so big what kind of hp does you're Redline put down? 1/4 mile? Or are all you're parts you supposidly have still sitting in you're room?

2nd highest, 06blackg85ss 296 whp, 274 wtq on a 2.55" with meth

 

Area ran a 2.8 on his m62 for a long time iirc...and we know his cars was badass...and like Zooomer said pulleys this small are pointless. Blower is out of its efficiency range makes tons of heat...if if it pulls good once the heat soak will kill you. Just my .02
Oh and companies would make a 1.9 pulley if some jackass would by it. They want to make money even if you don't make power.

 

Heat is the reason I'm porting mine before instal to lower temps as well as larger Meth nozzle. Along with my headwork I expect to be fine. For the average Joe tho I think not

 

Ya i totally understand that heat is the killer. You just see a lot of guys running them that make decient power is all i'm saying. With meth and E85. You don't really know until you do a back to back comparison on the dyno i guess.

 

Slowline's car is weak, **** every car he has is weak... He talks like he know's his ****, which he doesn't. Every car in this thread will smash his slow p.o.s. in any race at any event.
Now don't do a 2.5 **** THAT ill do an 2.7 at the lowest

 

slowine agrees, you got it mixed up man.

 

on a side note, we just created another css.net myth that will start circulation real soon.. "you need your head ported to run smaller than a 2.7" pulley" noobs are gonna start putting that in their advice to others...

 

Attention noobs- you will need your head ported to run a 2.5/2.6. And you will need e-85. If you dont listen to what im saying your car will blow up or even catch on fire so dont risk it

 

^^^^not true
meth will work, and a great tune will help

 

He agrees on no 2.5" but likes to talk down on everyone else with nothing to back it up

We need small pulley guys to chime here. Get some actual tested opinions

 

Are you saying 07blackg85ss made the most power or you saying he made the second best power?

 

2nd highest power as per the dyno thread

 

u know what pulley size works great? ko4....

 

Nah, too weak..

 

yeah.. i need a pulley swap

 

Yeah, those are fun.

 

2.5 installed! havnt driving it yet though. will let you know how it is. also this is before the retune..

 

I wasn't even spraying nitrous and my cylinder pressures were outrageous. I was on a 2.5 pulley, meth injection, and a p/p head.............

2006 Chevrolet Cobalt SS Supercharged :: VID00065.mp4 video by ralliartist - Photobucket

 

You look like you did something else to the car to cause that. We did that to our car few years back before I was hp tuning our car and did that on a untuned 75 shot. That usually happens if the car starts knocking and detonating that causes extremely high pressure in the cylinders.

 

Cylinder pressure will b to high to run nos at 2.5, 2.7. N e85

 

There was no knocking or detonating. I'm just trying to show you what's possible in the wildest scenario. My cylinder walls were a little weaker than most cars though, but the cylinder pressures were extremely high with the amount of airflow combined with the meth injection.

Just dropping to a 2.5 pulley probably isn't the smartest thing to do if you beat on your car a lot and race a lot.