Eaton M90 whine

[Jared]

does the Eaton M90 whine like the M112 on the cobra does? im thinking no but could be wrong. i love that whine.

sound clips be great guys!

i know sprout cant give me one...cause his car would have to run to do that. j/k bro

[CobraSnakebyte]

I've been curious about this as well.

[Rancherlee]

with a good cold air intake and no baffles, yes. I loved the way my supercoupe sounded. You can also take the blower apart and have the "noise reduction" ports welded up and you will sound like the batmobile in no time.

[Jared]

Originally Posted by Rancherlee

with a good cold air intake and no baffles, yes. I loved the way my supercoupe sounded. You can also take the blower apart and have the "noise reduction" ports welded up and you will sound like the batmobile in no time.

got a sound clip? where could one send a SC blower to be ported and remove the noise reduction crap?

[V6Sprout]

yes the whine is the same, maybe not a s loud but its definately additive. At the Morana V6FC in Mighigan last year one guy had the veins int he blower welde dup and his car sounded like a JET

[Flex]

Better than the sound is the feel bro. You wouldn't believe how hard a V6 can pull when there is a blower sitting on top of it.

[Fastronald]

I removed the factory air box and used a conical filter. The whine is louder now. Next spring, I'll be going to a new exhaust and that may help the whine.

[P-feif]

Originally Posted by V6Sprout

yes the whine is the same, maybe not a s loud but its definately additive. At the Morana V6FC in Mighigan last year one guy had the veins int he blower welde dup and his car sounded like a JET

That was the black Cougar. I was wondering how he moded that blower. Any chance that either you or someone else has a pic of that mod. I'm very curious as to how it's done.

[V6Sprout]

there are three opening in the blower, one large triangular opening and two small slots, the two small slots are to reduce noise, you weld those slots up and the blower gets insanely loud. At the dyno day this past Saturday I was told my M90 actually sounded louder then the but I was in the car for my dyno run so I don't have a good comparison myself.

[P-feif]

Yeah I'd like to see pic of that. I remember the triangle opening but I can't remember the slots, at least not clearly.

[fastang]

i'll try to post some pics later on today

[Fastronald]

Agreed..pics would be great!

[fastang]

here's a pic

[P-feif]

Oh those slots! Here's a question for you.... If you just cut the bottom of that blower open, and made it all one big hole would you gain flow, or loose velocity?

[StompinV6]

Originally Posted by Jared

does the Eaton M90 whine like the M112 on the cobra does? im thinking no but could be wrong. i love that whine.

sound clips be great guys!

i know sprout cant give me one...cause his car would have to run to do that. j/k bro

My Dakota friends like that whine too as they pass up the Lightnings, My friends say it whines because it is losing hahaha

[bowez]

Whine? Oh yes. Fender mounted intake 3" intake tube, 80mmTB/MAF, Ported M90, Ported Pleum. I'm told my Blower drowns out my exhuast (2.5-3-2.5 with borlas and magnaflow resonator).

[V6Sprout]

my blower drowns out my exhaust as well

[fastang]

mine does only if you are in front of my car, i dunno what happenes when i am driving though... i have a video i wanted to show you guys i'll see if i can get it on street fire or something.

[CDR Stang]

Here a couple drivebys of my stock 112/v6. How is the 90's whine compare to this? BTW: my scoop is completely open.
http://videos.streetfire.net/video/6...4d01854b5b.htm

[NorwegianMustang]

I'm sorry to O.T, but is it hard to put one on?

[CoJo98v6]

Here is my M90 sc '98, this was taken at world ford 9. The SC whine is loud, it drowns out my exhaust too.
http://www.youtube.com/watch?v=_8E5qfePMwE

[Nick D98]

mmmm that sounded great. Nice time too.

[fastang]

that sounds good. what mods do you have donw other then the swap, and did you change to the sc blcok or just swap the top.

Rich

[CoJo98v6]

I'm running the stock short block. Ported and polished everthing, 1 3/4" shorty headers, 2.5" borla exhaust, 75mm TB, Biggest Air to Air intercooler I could fit infront of the radiator, RPM cam, RR, under drive pulleys, ProM 80mm MAF, 10% orverdrive SC pulley. I think that all thats done to the engin.

[fastang]

you have underdrive pullys and overdrive pullys? how much psi are you pushing then?

[CoJo98v6]

Well since the crank pulley is a double pulley, the accesories are under driven and the supercharger is spun at the same speed. The overdrive sc pulley usally put out 15psi, but with all the porting and polishing I see 12-13psi.

[Thomas]

One of my buddies has a 95 SC and when he had the M90 setup, ported and welded shut slots, that thing was loud. Louder than his exhaust, which was 3" with turbos at back. Now with the AutoRotor, it's even louder, and I love it.
-Thomas

[Rookie]

Originally Posted by fastang

you have underdrive pullys and overdrive pullys? how much psi are you pushing then?

That's one of the nice things about having an M90 setup - the supercharger is driven by it's own pulley setup - unlike the prochargers which use the same belt for everything. That way - you can have the accessories underdriven with one part of the pulley set smaller, and then overdrive the M90 a bit with a larger pulley on that drive section.

My old 5.0 with the Powerdyne could have been done the same way as the supercharger pulley bolted on to the main crank pulley. By varying the sizes of the pulleys, you can underdrive/overdrive to your hearts content.

[V6Sprout]

yup, I have UD pullies on the large outer belt, and an overdrive pulley on the small blower belt. Having more then one belt has some advantages

[fastang]

whats the best way to go with the under and over driving then?

[V6Sprout]

there is only one choice for underdrives, as in one ratio so to speak, but many companies sell UD kits. But there are a few options for the blower, you can either overdrive the jackshaft pulley or the blower pulley. The jackshaft is a better choice as it allows the blower pulley to remain larger and thus have better belt wrap. Some guyys overdrive BOTH the jackshaft and blower pulley for up to 20% overdrive. You can overdrive both pullies either 5 or 10% each. Too much is not good though as it puts the blower past its effecieny rating, I have 10% on the blower, thats enough for 14psi on a stock motor.

[fastang]

shit 14 psi, i never knew you were pushing that much psi, are your hp and tq numbers the same as what you had posted before? and what psi were you pushing before you the 10% overdrive. what were the power changes from your old setup compared to now? i was looking at overdriving but right now stock without changing anything i had around 10psi on a very hot day and i have ported heads and intake, with the 3rd gen blower and then blew the motor.

[V6Sprout]

I never dyno'd the car witht he stock pulley. My gauge only reads about 12 psi but the needle is off by almsot 2 psi. Ported heads and intakes will lower your PSI, cause its less restriction. More power onless boost is good cause boost = heat = bad, so less boost = less heat, there is a happy medium though.

[ryan4liberty@hotmail.com]

My Supercharger does seem to be louder than the exhuast at certain rpm's. That Red stang in the video though that souns f*ckin nice!!!! Was wondering about these holes to weld what if a guy welded Say 50% of the openings on each one? thanx ryan

[slow_v6_stang]

i would assume welding them half way shut would make it louder, but not as loud as it can be. i've head horror stories about people welding their silencer ports shut and the blower casing getting warped and the rotors not turning freely from hitting the casing.'


if someone has some info on welding them shut, let me know. i wouldnt mind mine being ever louder

[V6Sprout]

I was thinking of welding them half shut as well. If you go slow when welding you should be fine. Also want to keep the entire case heated to prevent warpage. I was told its easier to weld a piece of aluminum OVER the hole instead of welding up the hole, that way you really only have to tack the piece of aluminum over the hole, so less welding, less heat, less chance of warpage.

[ryan4liberty@hotmail.com]

Effin A, I'm getting my weld on by next weekend!!! Got a cold air that should be here by then and also a chip!! Met a dude on here who's sellin me a 65mm bbk tbi and spacer, Somethin tells me I might be seeing that god for sakin white cloud coming out the ass end of my car soon

[ryan4liberty@hotmail.com]

This can be done while on the car hey?????? Or am I pushin it??

[Roadhawg]

Originally Posted by ryan4liberty@hotmail.com

Met a dude on here who's sellin me a 65mm bbk tbi and spacer,

Hopefully it is a TB designed for a Tbird, as the 89-93 SCs use a different throttle cable assembly than a Mustang. Also the TB for SCs do not use a spacer......................

[ryan4liberty@hotmail.com]

http://www.rpmoutlet.com/musv6bbktb.htm#1 That not gonna work? the dude from this site said it will bolt right on.

[V6Sprout]

nope thats for a MUSTANG TB, if you have a SC blower you need a SC TB. They are different. If you told him you have a Mustang with a roots blower then he would probably not know its different. He probably thought you still were using a Mustang TB with the roots blower, or he just doesn't know the SC TB is different. The SC TB is the same as the 94-95 5.0L TB's, and the 5.0L TB has the correct linkage to work with your Mustang throttle cable. I use the SC throttle cable so I use the linkage onthe SC TB as well.

[slow_v6_stang]

Originally Posted by ryan4liberty@hotmail.com

Effin A, I'm getting my weld on by next weekend!!! Got a cold air that should be here by then and also a chip!! Met a dude on here who's sellin me a 65mm bbk tbi and spacer, Somethin tells me I might be seeing that god for sakin white cloud coming out the ass end of my car soon

oh the memories...

i made it like 8 miles with my M90 on my N/A 3.8 engine before i got that "got for saken white cloud coming out the ass end of my car"

[blackmustang98_]

So can we just weld completely those silencer ports by adding a alumminum piece and weld it in there?

When doing this do we have to make the triangle hole bigger?
If i dont make it bigger and weld them will i still be ok?

If so i am doing this definetely tomorrow.

Thanks guys

[CobraSnakebyte]

Wow. Old thread.

You don't have to weld them, you can use epoxy. BKB may have more info on it. Check this thread:

http://www.v6power.net/vb/showthread.php?p=407597

[Jamez]

I couldn't imagine making the thing louder, its all I could hear at the track, even with Flowpaths and dumps. Might be a different story outside the car though.