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frankieh
Fordmods - Getting Side Ways
Age:36
Posts: 1385
Joined: 23 Dec 2007
Location: Perth WA, Australia
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 Posted: Sun Jun 08, 2008 10:12 pm Post subject: Todays progress report with photos |
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Today I worked on the mounting bracket I'll need to bolt the charger in and hold it tight..
As always I made a cardboard one first to get the size right. I expected to use thinish metal and brace it with angle iron around the edges for structural strength.. (didn't think I'd get anything thicker to fit.) but thats what all the angled edges are in the cardboard version.
The cardboard dummy was fitted in place with the supercharger over and over till I had it right. Eventually it was as close to perfect as I could make it.
Then I transfered it to steel.. but I took a look around my shed and found an old BBQ plate that I'd made but never used.. it was 5 or 6mm thick.. so now I don't need all the bracing on the sides.. and I modified the design slightly so the charger sits more in the bracket rather than on it.. which solved the fitting issues..
Here is the mostly finished steel bracket sitting over the inlet of the charger.
The photo doesn't really show how thick the steel is...
I even found a use for the spacer tubes from the EL air con bolts (which are not needed now because I have an EA air con bracket on there.) The tubes will go between the mounting holes on the charger and the bracket as you can see in the photo, there is a gap of about an inch between them.
Here is another photo from a different angle..
Cost so far...
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- Eaton M90. $650
- Oil Filter relocation kit. $90
- 6 cutting disks 4 grinder $10
- BBQ plate. $0.00
- EA air con bracket $0.00
- EL air con spacer tubes $0.00
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TOTAL $750.00
To Do:
I have yet to drill the bracket accordingly, or add the three mounting tabs that allow it to bolt to the engine block. (two of the tabs go on the inside edge, one goes underneath unto the unused hole on the air con bracket.
The tabs are just angle iron that is cut about an inch or so wide and welded to the bracket in the appropriate places.
Once the tabs are in place, I can bolt it on onto the block and start trying to figure out the pulley arrangement so that I can have as much contact between pulley and belt as possible to eliminate slippage.
Then I start stealth fitting an intercooler.... but that is for later on down the track.
rgds
Frank
Once
Last edited by frankieh on Mon Jun 09, 2008 12:25 am, edited 1 time in total |
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Disco Frank
Fordmods Junkie
Age:29
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Location: Perth WA, Australia
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| Posted: Sun Jun 08, 2008 11:54 pm Post subject: |
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awesome work
time to get me an m90 and u to make me a plate  |
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xfpaul
Fordmods Stock as a Rock
Age:45
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Location: hobart TAS, Australia
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| Posted: Mon Jun 09, 2008 12:40 am Post subject: |
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had the same intercooler your talking about double flow same side in and out , it was to restrictive , bar / plate area was smaller than the rest of the plumbing changed it single flow much better.
i still running au spring tensioner , it chases belt stretch , which was a problem with my first ea-ed tensioner setup i had, now have best of both worlds using both tensioners, i cut away the two passenger side tabs on the AU tensioner to mount the ed slide bracket to the same bolts , also tab attached to the thermo housing and stay back to air con mount
wont need bypass for blower running blow through , but will need bov same as turbo |
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frankieh
Fordmods - Getting Side Ways
Age:36
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| Posted: Mon Jun 09, 2008 1:16 am Post subject: |
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ok, that is interesting.. I didn't know about the BOV... I thought they were illegal.. but what else can you do?
(or is it the ones that vent to air rather than the intake that are illegal?)
I must admit, I was under the impression that bypass wasn't necessary on the m90 because of this article:
http://www.autospeed.com/A_110295/cms/article.html
| Quote: |
Note that boost pressure is controlled by an air bypass system, which is found at the rear of the supercharger. When the engine doesn’t require boost, induction air supplied from the blower is returned to its inlet.
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I don't see anything like that on the back of my sc....
Can I get a photo or two of your belt arrangement Mr Paul? it might be helpful for me when the time comes. |
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low_ryda
Fordmods - Smokin em up
Posts: 233
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Location: south coast NSW, Australia
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| Posted: Mon Jun 09, 2008 2:07 pm Post subject: |
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| bov is legal if it's plumbed back to the airbox isn't it ? |
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frankieh
Fordmods - Getting Side Ways
Age:36
Posts: 1385
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Location: Perth WA, Australia
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| Posted: Mon Jun 09, 2008 5:32 pm Post subject: |
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What did turbo cars use before BOV's???
Is there anyway to get my bypass valve working with blow through induction?
I want this thing to look and sound stealth.. a BOV is going to advertise itself isn't it?
Last edited by frankieh on Tue Jun 10, 2008 1:53 am, edited 1 time in total |
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xfpaul
Fordmods Stock as a Rock
Age:45
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Location: hobart TAS, Australia
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| Posted: Mon Jun 09, 2008 7:20 pm Post subject: |
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| a bov can be plumb back into the inlet to reduce the noise , they are used to release the pressure as the throtle is closed and keep the turbo spining ,as aposed to stalling it and having to spin it up again on a roots blower the actual pumping efiency is much better, if that pressure cant go anywhere the blower will stall causeing at least belt wear or through the belt off the pulley |
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schnoods
Fordmods - Getting Side Ways
Age:24
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Location: Perth WA, Australia
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| Posted: Mon Jun 09, 2008 8:16 pm Post subject: |
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| frankieh wrote: | What did turbo case use before BOV's???
Is there anyway to get my bypass valve working with blow through induction?
I want this thing to look and sound stealth.. a BOV is going to advertise itself isn't it? |
Yes, a bypass valve can be used with blow thru induction too. Makes virtually no noise at all, you wont hear it. |
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xfpaul
Fordmods Stock as a Rock
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| Posted: Mon Jun 09, 2008 11:13 pm Post subject: |
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| the bypass is not a pressure release valve , it is orig fitted to bypass the blower at low engine speeds so that the throtle/ idle speed controler is directly conected to the manifold , it is controlled by vacum , is fitted to smooth low end idle , remove the lope that most blowers cause at low rpm pulses and increase throtle reponse , vacum opens the plate and pressure closes it reverse to what you want |
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xfpaul
Fordmods Stock as a Rock
Age:45
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| Posted: Mon Jun 09, 2008 11:20 pm Post subject: |
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i'll try not to confuse here ,but i have both fitted to my setup , the bypass as explained and a bov not for the reason you need one , but as a back fire pressure release so i dont blow the pipe work and or intercooler to bits espesially when its full of lpg.
sorry about spelling very tired |
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schnoods
Fordmods - Getting Side Ways
Age:24
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| Posted: Tue Jun 10, 2008 1:04 am Post subject: |
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| xfpaul wrote: | | the bypass is not a pressure release valve , it is orig fitted to bypass the blower at low engine speeds so that the throtle/ idle speed controler is directly conected to the manifold , it is controlled by vacum , is fitted to smooth low end idle , remove the lope that most blowers cause at low rpm pulses and increase throtle reponse , vacum opens the plate and pressure closes it reverse to what you want |
yes thats correct.
However it will vent on when the throttle is snapped shut, I know its not what its designed for, but the pressure release it has is adequate, otherwise there would be a helluva lot of capa and other centrifugal kits suffering compressor surge.
But being a positive displacement with a fixed displacement of air per sweep (revolution) it'd be interesting how it would react, full boost would be at 1500-200 rpm and be constant from there on in? How much boost are you planning on running? |
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frankieh
Fordmods - Getting Side Ways
Age:36
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Location: Perth WA, Australia
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| Posted: Tue Jun 10, 2008 1:15 am Post subject: |
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Well, I plan on putting the 10.5 PSI pulley on it once I have it all sorted..
Like this one:
http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&rd=1&item=130225696604&ssPageName=STRK:MEWA:IT&ih=003
I don't however know how the crank pulley size differs from a VN, so I don't really know what PSI it will give me on the EL motor yet.
I'm aiming for 10-12 PSI. (To start with, I will be using a traditional air to air intercooler.. but as time and money allows, I have plans for a water to air which will again reduce pressure loss.
rgds
Frank |
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schnoods
Fordmods - Getting Side Ways
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| Posted: Tue Jun 10, 2008 1:52 am Post subject: |
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Seems like she'll be really moving, 10.5 psi is a fairbit.
Like Xfpaul running both a Bov and bypass valve will be the go, 10.5 psi (more or less) is a fair bit to vent. |
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frankieh
Fordmods - Getting Side Ways
Age:36
Posts: 1385
Joined: 23 Dec 2007
Location: Perth WA, Australia
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| Posted: Tue Jun 10, 2008 1:57 am Post subject: |
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Is it? I thought I was being reasonable..
Both it is then.. but I will get a BOV that can be hidden and is as quite as possible.
The M90 can do it.. particularly with water to air intercooling.. which loses heaps less pressure than air to air from what I've read... I have an idea on how I want to make my own heat exchanger to.. but I'm going air to air to start with because my idea will take time to develop. |
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xfpaul
Fordmods Stock as a Rock
Age:45
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Location: hobart TAS, Australia
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| Posted: Tue Jun 10, 2008 7:37 am Post subject: |
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drive ratio will be a problem , to get 10.5 psi , i running around 8 psi thats with the 7 inch AU2 harmonic balancer and a 2.7 inch drive pulley can go to a 2.5 the smallest posible but you have to machine the snout
lookup pulley boys , company out of usa where i got mine cheaper and have all the sizes http://www.pulleyboys.com/fordscxr7.html |
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frankieh
Fordmods - Getting Side Ways
Age:36
Posts: 1385
Joined: 23 Dec 2007
Location: Perth WA, Australia
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| Posted: Tue Jun 10, 2008 11:36 am Post subject: |
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Thanks Paul.. perhaps I will get the nose machined.. but I think I'll do everything else first so I can find out what the problems are. (like belt slip etc..)
Did you ever get your best dynoed? I'm curious how it goes on gas and what your gas setup is, as that is my plan also. |
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frankieh
Fordmods - Getting Side Ways
Age:36
Posts: 1385
Joined: 23 Dec 2007
Location: Perth WA, Australia
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| Posted: Fri Jun 13, 2008 2:49 am Post subject: |
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Well, in addition to the rising rate fuel regulator.. It looks like I've scored a 660x300x100 intercooler to go with it..
going to be hard to stealth that, but I'm gonna try to make it as stealth as possible.. (an idiot cop probably won't notice, but a knowledgeable one would pick it straight away..
Later on, I will swap to water to air to get less loss, but for now, this will have to do.
It's nearly Saturday again, I'm hoping by the end of this one, I'll have the charger bolted in place and be getting measured up for a new belt. |
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Disco Frank
Fordmods Junkie
Age:29
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| Posted: Sat Jun 14, 2008 11:52 pm Post subject: |
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cool as dude
paint the cooler matt black
will help with the stealth look |
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frankieh
Fordmods - Getting Side Ways
Age:36
Posts: 1385
Joined: 23 Dec 2007
Location: Perth WA, Australia
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| Posted: Sat Jun 14, 2008 11:57 pm Post subject: |
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| I've got the bracket bolted to the engine, and the charger in the bracket.. and I've taken photos.. will post them later. |
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