Supercharger installed

[Bill Barber]

actually the M90 is perfect for the 4.0, up to about 5 lbs of boost, very reliable and they Whine like a scalded dawg.

you can have them ported and with the right pully they will make 10 lbs, but they get hot real quik.

You do not want to exceed 5 lbs on the 4.0, engine will not handle anymore in OEM form.

 

[EddieS'04]

I agree with Bill 5psi for $2k. Is not bad if you have the play money. Any more boost, you will break it.

 

[William Steele]

Thanks for the compliments and saying it wasnt bad for me to do that.

 

[TrainTrac]

I didn't realize that you could pick up a M90 blower so cheap. Congrats on finding a way to do this mod in a much more "economical" fashion!:supercool:



When you get a chance, post some video of the engine idling and revving. I'd love to hear that s/c!

 

[Bill Barber]

But get it on a dyno dude, before you boost that puppy you have to at least know what the A/F is.

 

[Todd Z]

Would you trust a used blower ????



I am not rich enough to be cheep.........



I would buy new...



Todd Z

 

[William Steele]

Just check the blower real good and get the snout rebuilt and its not a problem with it at all. Im running about 14.4 to 15 going down the road under normal load, but when I punch it it drops to 11.9 to 12.2. That with using a LC-1 Wide band. I will work on the video of idling and such.

 

[Bill Barber]

11.9/12.2 is great, drop dead perfect, are you using the OEM injectors?

 

[Bill Barber]

go here, brand new in the box Roush M90 headunit. $399.00

 

[William Steele]

Yes Im using the stock injectors and MAF, they will be fine for a 5 to 6 lbs boost after that what I have read is pushing them. But the kit works real well there are some small things that need to be done to make it work on at 2004 at least but its a very good kit.

 

[Bill Barber]

Question, looks like your running a 6 rib belt on an 8 rib pully, or am I just seeing things.

I have a 6 rib M90 pully around someplace if you have a need.

 

[William Steele]

thats true its a 8 rib belt. it doesnt bar it at all. What dia is your 6 rib belt? I may want it if the price aint bad.

 

[Bill Barber]

i think you meen 6 rib pully. let me find it and will ck the dia, you can have it.