keebler65

i was on clubsi (dont ask why...) and someone posted about a company that ports eaton blowers including the M62 so that they flow more freely. they claim that the blower will output 6psi with the porting and the 3.2" pulley that they provide. theres also the option of just the porting and keeping your stock pulley (Which i am interested in) however i'm wondering what the gains would be. i've emailed them back and forth asking a few more questions. has anyone heard of this process or the company that does it? also, does anyone know how much boost would be made if i DIDNT port it and ran the blower with the 3.2" pulley? i'm not considering this however if i can find this info, maybe i can subtract and find the real gains of the porting. anyways i'd like to hear people's thoughts on this topic and if they think its worth while. the reason it appeals to me is because it doesnt spin the blower faster, it increases the psi (supposedly), and the cost is relatively low if the gains are true. i'll keep adding to the email conversation as they reply.

thanks


email conversation:
================================================== ========================
i found the following posted on a message board:


*******************
"I was told:

Porting the M62 costs $350.00.
Quick Change pulley installed $200.00 Includes 1 pulley 1 hub

Total: $550.
Looking at about a 6lb gain and you can change the pulley without the
pulley remover tool.
It uses an allen wrench and can be done in under ten minutes.

So you would have to send your blower in to be done.

contact: sales@.turbocharged.tv.

The company that does it is in Missouri."


*********************

i was wondering if you could fill me in on some more details. i have a
jackson racing kit with the
M62 blower and would like to know the specifics of what is typically
ported and what the suspected
gains are.
================================================== ========================
Yes, those prices are correct. Are you looking to get it done?
We do not have cores in, so you would have to send yours.
Turn around would be about 2 -2.5 weeks.

Thatprice is for porting diffusing, and installing the pulley.

I would recommend larger fuel injectors, a 255lph pump and a fuel rail
with the porting, if you do
not already have those.
================================================== ========================
Thanks for the reply.

I'm confused with this statement, perhaps you can clarify:
"Looking at about a 6lb gain and you can change the pulley without the
pulley remover tool."
Does this mean that in order to gain 6lbs of boost, a pulley is involved? If
I don't upgrade the pulley, what gains can I expect with just the porting
job? Do you have any pictures of what is ported/modified?

I'm very interested but would like more details.
================================================== ========================
The porting is good about 3 on it's own, and, the air flow is straighted.
The pulley is changeable, so you have different choices on what amount of boost you want. The
standard size is 3.2. You can go larger for less boost and smaller for more. It only reqiures an
allen wrench to change it. The 3.2 is installed with the porting. So you do not have to rent a
pulley removal tool and go through the hassle of taking off the pressed on one.

I do not currently have a picture of the port work.
================================================== ========================
Thanks for the fast reply. So after porting the blower, I should see around
9psi if i keep the 6psi (stock) pulley on? Also, would the intake temps be
lower since there are less sharp edges for the air to hit? Have you ever
measured the difference in temps? Also what is the name and location of your
company? I appreciate all of the info.
================================================== ========================
(waiting for reply)...

GreddySi99

dont bother it is a wasate of money. it has been done and dynoed and it makes no more power. also the thing about the intake temps is absolutly incorrect. also at that boost level you get what is called rotor flutter. similar to cavitation of a baot prop where the unit just becums inefficient. very simmilar to a under sized turbo. If you want more air just get a eatom M90 blower and that should get you near the 300Hp threshhold

keebler65

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by intercooledJRSC &raquo;</TD></TR><TR><TD CLASS="quote">dont bother it is a wasate of money. it has been done and dynoed and it makes no more power. also the thing about the intake temps is absolutly incorrect. also at that boost level you get what is called rotor flutter. similar to cavitation of a baot prop where the unit just becums inefficient. very simmilar to a under sized turbo. If you want more air just get a eatom M90 blower and that should get you near the 300Hp threshhold</TD></TR></TABLE>

do you have a link to the dyno? do you know what company did that particular port job? thanks for the reply.

lazerus

i strongly recommend you purchase a new blower.

http://www.blowerdriveservice.com/blowers.html

p/n 1671HATTBFD

Overblown-Teg

check out this site.. http://www.toohighpsi.com I think you will like it.

keebler65

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Overblown-Teg &raquo;</TD></TR><TR><TD CLASS="quote">check out this site.. http://www.toohighpsi.com I think you will like it.</TD></TR></TABLE>

hey thanks for posting that site. i think i found the page you intended me to see. for the lazy people, heres the direct link: http://www.toohighpsi.com/SCTC/88scbirdlm.htm
it shows some nice pics of a typical blower modification.

lazerus

if one superchargers not enough, use two!

MiraiZ

Why just port it when you can chrome it too!

Rory Breaker

I have yet to see or talk to someone who has gone with an M90.

What is involved with the upgrade, and what kind of gains can be seen? I would imagine the gains are pretty evident even at corresponding PSI.

lazerus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MiraiZ &raquo;</TD></TR><TR><TD CLASS="quote">Why just port it when you can chrome it too! </TD></TR></TABLE>

dang i never thought of that, that's AWESOME!!!!!

keeps the heat out right??

keebler65

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by newgsrdriver &raquo;</TD></TR><TR><TD CLASS="quote">I have yet to see or talk to someone who has gone with an M90.

What is involved with the upgrade, and what kind of gains can be seen? I would imagine the gains are pretty evident even at corresponding PSI.</TD></TR></TABLE>

i would be surprised if anyone could even fit an M90 into a honda. and even if they could, i believe the pulley would have to spin the opposite direction, unless you want to suck air out of the intake manifold, if memory serves correct.

i'd like to keep this discussion on topic. i'm not interested in buying a new blower, and not a chromed one at that. i'd rather hear of porting jobs gone good/bad.

on another note, i've heard of people plugging the two slots on the output side of the blower that are on either side of the main output triangle. they are there to supposedly make it run more quiet, but thats their only purpose that i've read about so far. i guess people fill it with JB weld and it gives them a more efficient output. any comments on this procedure?

Overblown-Teg

yeah you need a blower that is designed to spin backwards.. as far as I know jackson and endyne are the only ones that do that. Mike went low 10's in that car. His current setup is a drag radial class car running a single turbo and its going 9's..

CRVRX

Not Trying to sound like my Dad , but, Eaton build there blowers to be as effeciant as possible yet keep the reliablity.
I have blown up many M62s , I have also spent countless $$$$ trying to make more power with them, I have sent them out to "People that can improve them". One of which cost a lot of $$$ and was filled with 10W30 motor oil and Granaded itself.
I have a good connection a Magnason, They have tried a few little tricks to cool temps and straigten out the air flow. I was told there isn't much improvment to warrant the work involed.
I have found good power improvment with a new "S" tube , which we custom built ( Between the blower and Thottle body) and a larger thottle body. They are very sensative to the intake side. I have also build a custom header I hope to dyno soon.

Save your money , If they was any good gains to be found in the blower , Jaguar would have it done to there cars .