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MrOz

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Crazyhill, Livi

I need to slow my Eaton M45 down.

Just wanted to ask if anyone could recommend a good place to get a new pulley made?

On the subject of pulleys, would it be best to change the pulley on the Eaton or change to crank pulley?

I was thinking, space wise, it would be best to change the crank pulley.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."


stevieturbo

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CDF Racing

Change whichever is easiest for you, makes no odds.

9.85 @ 145mph
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speed didn't kill me, but taxation probably will


apbellamy

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King Gaycharger, butt plug dealer, Sheldon Cooper and a BAC but generally a niceish fella if you dont mind a northerner

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force racing

Carl made one for my SC12 and it is lovely.

On 11th Feb, 2015 robert said:
i tried putting soap on it , and heating it to brown , then slathered my new lube on it

*hehe!*


MrOz

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Crazyhill, Livi

On 17th Apr, 2010 stevieturbo said:
CDF Racing.

On 17th Apr, 2010 apbellamy said:
force racing


Nice one. Thanx for that.

Now for an obvious follow on question.... calculating pulley dimensions.

I've found calcs for the 'charger pulley (from this thread http://www.turbominis.co.uk/forums/index.php?p=vt&tid=237928 ) and if I wanted 8 PSI, the pulley would need to be 91mm.

Now, substituing the figures and multiplying out, I've calculated that the crank should be 85mm.

This is assuming that standard MPI pulley is 120mm and Eaton pulley is 65mm as standard.

Does this sound about right or am I barking up the wrong tree.

Edited by MrOz on 17th Apr, 2010.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."


alaskanow0

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Mansfield

Hi,

Am Planning on doing the same thing with my M45 build, everybody sells smaller pulleys, but not oversized. I previous ran standard vmax scart crank pulley and standard charger pulley on my 1350 and ran 10-11psi. I am now after 6-8psi on my 1263 shortshroke. I figure a larger pulley will also help reduce belt slip. I was planning on having a 85mm pulley made. I will get a quote and keep you informed, maybe we can get a better deal for 2.

Class C 3rd Place Avon 2011 14.18 @101mph


fastcarl

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leeds/wakefield.

If you are palnning on increasing the charger pully, will this not move the line of the belt closer to the bulkhead, i thought the belt was already very close using the the standard charger pully dia,.

carl

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE


MrOz

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Crazyhill, Livi

On 18th Apr, 2010 fastcarl said:
If you are palnning on increasing the charger pully, will this not move the line of the belt closer to the bulkhead, i thought the belt was already very close using the the standard charger pully dia,.
carl


Just check, you're not wrong Carl - I think if I need a 91mm pulley the belt will foul the bulkhead, might be ok with a 85mm one.

Hmmmm, need to think about this one. If I was to decrease the size of the crank pulley - wouldn't that have an effect on the the charging system and the speed of the water pump?

Edited by MrOz on 18th Apr, 2010.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."


1972-ANGUS

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sallys gap. garden of Ireland


[/quote] If I was to decrease the size of the crank pulley - wouldn't that have an effect on the the charging system and the speed of the water pump?
[/quote]

thats right,without correcting these pullys too.


alaskanow0

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Mansfield

I have 28mm clearance. . 17mm if belt is pushed firmily towards the bulkhead. An extra 10mm radius, would give just 18mm clearancce and 7mm including maximum belt whip. 1Worst case 7mm should be fine for engine movement. If not and adjustable engine steady will be used to increase clearance.

Edited by alaskanow0 on 19th Apr, 2010.

Class C 3rd Place Avon 2011 14.18 @101mph


gr4h4m

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Chester


most sc setup use a steady on the rad side asstandard

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!


Yo-Han

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Is this on an engine that is already running?
If yes, out of curiosity, what is your current setup, how much boost are you getting now?

Edit:
Saw you other post, guess it's not running.
Hope you get yours running this summer, mine is still far away.. *frown*

Edited by Yo-Han on 21st Apr, 2010.

Dazed and Confused....


Andy500

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Cheshire

I run a vmax set up and standard mpi crank pulley. from the sounds of it your exactly where I was a couple of years ago. I had a either 74 or 76mm pulley made (cant remember which now) but my p[osts are all on here which dropped the boost to 9psi and halved the charge temps at the same time without much loss in power at all.


turbo hogster

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stowmaket suffolk

not being funny whats wrong with running 10-11psi car will go well on that boost

always looking for them bigger bunches of bannanas


GaryOS

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Dublin, Ireland

Stupidly high charge temps and a greater possibility for det.

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse *happy*


On 30th Apr, 2010 Rod S said:
Gary's description is best


MrOz

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Crazyhill, Livi

On 21st Apr, 2010 Yo-Han said:
Is this on an engine that is already running?
If yes, out of curiosity, what is your current setup, how much boost are you getting now?

Edit:
Saw you other post, guess it's not running.
Hope you get yours running this summer, mine is still far away.. *frown*


Yeah, the MPI is running.

I'm using the Vmax MPI150 set-up, and according to the boost gauge (before it stopped working) 11psi of boost.

The plan is to spend some of the summer getting the MPI going well and having the reliability benchmarked at +3 months.... *happy*

On 25th Apr, 2010 Andy500 said:
I run a vmax set up and standard mpi crank pulley. from the sounds of it your exactly where I was a couple of years ago. I had a either 74 or 76mm pulley made (cant remember which now) but my p[osts are all on here which dropped the boost to 9psi and halved the charge temps at the same time without much loss in power at all.


Yeah, thanx for the info Andy - much appreciated. I'm working my way through finding your posts.

I'd love to head down to have Dave Walker set it up, but it's one hell of a journey to make - maybe once I get a bit better reliability and a decent amount of cash.

On 25th Apr, 2010 turbo hogster said:
not being funny whats wrong with running 10-11psi car will go well on that boost



On 25th Apr, 2010 GaryOS said:
Stupidly high charge temps and a greater possibility for det.


Just as GaryOS sayz - I logged temps of +100 degrees C!!!

Andy - I've just spent 10 minutes staring at yer avaitar..... love it.

"se ne estas rompita, ne ripar ĝi - supercharge ĝi."


Andy500

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Cheshire




On 26th Apr, 2010 MrOz said:
On 21st Apr, 2010 Yo-Han said:
Is this on an engine that is already running?
If yes, out of curiosity, what is your current setup, how much boost are you getting now?

Edit:
Saw you other post, guess it's not running.
Hope you get yours running this summer, mine is still far away.. *frown*


Yeah, the MPI is running.

I'm using the Vmax MPI150 set-up, and according to the boost gauge (before it stopped working) 11psi of boost.

The plan is to spend some of the summer getting the MPI going well and having the reliability benchmarked at +3 months.... *happy*

On 25th Apr, 2010 Andy500 said:
I run a vmax set up and standard mpi crank pulley. from the sounds of it your exactly where I was a couple of years ago. I had a either 74 or 76mm pulley made (cant remember which now) but my p[osts are all on here which dropped the boost to 9psi and halved the charge temps at the same time without much loss in power at all.


Yeah, thanx for the info Andy - much appreciated. I'm working my way through finding your posts.

I'd love to head down to have Dave Walker set it up, but it's one hell of a journey to make - maybe once I get a bit better reliability and a decent amount of cash.

On 25th Apr, 2010 turbo hogster said:
not being funny whats wrong with running 10-11psi car will go well on that boost



On 25th Apr, 2010 GaryOS said:
Stupidly high charge temps and a greater possibility for det.


Just as GaryOS sayz - I logged temps of +100 degrees C!!!

No worrys mate, drop me a pm if you need any other help.
Andy
Andy - I've just spent 10 minutes staring at yer avaitar..... love it.


1972-ANGUS

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sallys gap. garden of Ireland

*Clapping*


Yo-Han

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North of the Netherlands




On 26th Apr, 2010 MrOz said:
On 21st Apr, 2010 Yo-Han said:
Is this on an engine that is already running?
If yes, out of curiosity, what is your current setup, how much boost are you getting now?

Edit:
Saw you other post, guess it's not running.
Hope you get yours running this summer, mine is still far away.. *frown*


Yeah, the MPI is running.

I'm using the Vmax MPI150 set-up, and according to the boost gauge (before it stopped working) 11psi of boost.

The plan is to spend some of the summer getting the MPI going well and having the reliability benchmarked at +3 months.... *happy*

On 25th Apr, 2010 Andy500 said:
I run a vmax set up and standard mpi crank pulley. from the sounds of it your exactly where I was a couple of years ago. I had a either 74 or 76mm pulley made (cant remember which now) but my p[osts are all on here which dropped the boost to 9psi and halved the charge temps at the same time without much loss in power at all.


Yeah, thanx for the info Andy - much appreciated. I'm working my way through finding your posts.

I'd love to head down to have Dave Walker set it up, but it's one hell of a journey to make - maybe once I get a bit better reliability and a decent amount of cash.

On 25th Apr, 2010 turbo hogster said:
not being funny whats wrong with running 10-11psi car will go well on that boost



On 25th Apr, 2010 GaryOS said:
Stupidly high charge temps and a greater possibility for det.


Just as GaryOS sayz - I logged temps of +100 degrees C!!!

Andy - I've just spent 10 minutes staring at yer avaitar..... love it.


Thanks for your reaction MrOz.

Interesting as I want to run about 10psi but I have an intercooler.
Do you know what kind of CR you are running?

And yes, that avatar...yummmm!! *Clapping*

Dazed and Confused....

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