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Lets see what this heat maker can do-JRSC build thread.

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disciplerocks

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Discussion starter · #1 · (Edited)
So I am planning on gathering parts and start building this winter. Been working on a couple things so far.

Current setup:
M45
6.5" crank pulley
2.6" blower pulley
ZX2 cams
COP
SVT airbox
OBX header/catback
FC cam gears
E85
Image



List of plans:
Head milled and mildly ported
Larger valves
Replace the M45 with a mildly ported M62
Smaller sc pulley (offset is different for the GM M62, undecided on size)
Aluminum flywheel and clutch (undecided on clutch)
SVT rods (undecided on pistons)
W/M or N2O (DD, but will rarely see high boost)
Tube arms (built by me)
Traction bars (built by me)


Now this is what I have so far

Brand new aluminum flywheel
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SVT rods and pistons with new rings and bearings installed
Image


And an M62 off a 95 Riviera
Image


The blower is getting stripped down and cut up to fit the JRSC throttle body plate. Will be replacing the bearings, coupling, and seals.
 
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#3 · (Edited)
Very interesting!

When you pick your pulley size keep in mind the M62's rated RPM is up to 14,000 rpm.

(crank pully / blower pulley) * engine rpm = blower rpm

a 3.0" pully paired with your 6.5" crank pulley would put you at 14 625 rpm @ 6750 engine rpm. But without any charge cooling I wouldn't run it that high. The svt jrsc with BBK I have on my cougar (04 zx3 motor swapped in this year) runs the blower around 11 200 rpm iirc. and that makes about 10psi
 
#5 ·
This is gonna be a very interesting setup... cant wait to see the outcome.

-Chris
 
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Discussion starter · #6 · (Edited)
iceberg65 said:
But without any charge cooling I wouldn't run it that high.
Click to expand...
I'm running 14+ psi now, I haven't done the math so I don't know what size blower pulley I am going to use. I don't need to attempt to push that much on the new setup since I am increasing compression.

And the W/M or N2O and E85 will take care of some cooling.

Turbofab said:
Ditch the COP setup it kills power
Click to expand...
Interesting. Wish I would have known that before building the plate. I have heard of people having problems with really high numbers, but not with what I will be pushing. And its probably better than my Screamin Demon. Thanks for the heads up Jim.
 
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Discussion starter · #7 ·
And Chris, I meant to PM you last night about that head. I got a little drunk and I'm not sure if I sent it or not.
 
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#8 ·
If you still got the stock stuff do a switch out on the dyno and you will see your power increase. no one has used the COP on low hp stuff so no one knows if it kills power or not. but judging by its still 'Spark' if it affect high hp it affects low hp
 
#9 ·
For the amount of fabrication involved... I would just jump into a twin-screw or TVS setup.
I know another guy that's drawing up some stuff on CAD as we speak to run a TVS blower with his current setup ;) :evilgrin: ;) :evilgrin: ;)
 
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Discussion starter · #10 ·
Its really not that much fab work. If it was, then I'd be better off going with an M90. And I paid $50 for the thing so I'm not out a whole lot.
 
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#11 ·
Understood
 
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#13 ·
disciplerocks said:
I'm running 14+ psi now, I haven't done the math so I don't know what size blower pulley I am going to use. I don't need to attempt to push that much on the new setup since I am increasing compression.

And the W/M or N2O and E85 will take care of some cooling.
Click to expand...
somehow I missed your mention of the WMI in the first post. You would probably be ok running it at 14K rpm with a good WMI setup.

I know e85 is nice for deto resistance; but keep in mind roots blowers see a pretty steady increase in temperature and as pressure increases so does that increase; regardless of fuel used. Same thing for power consumption to run the blower. If you're running at 14K rpm (even if it makes 10psi- it would be higher) its going to be a temperature increase of 180 degrees over ambient. The temperature change at the same RPM at 5 psi is 60* cooler.

Image


same Idea carries over for power consumption to drive the blower
Image



-heres the link to the site I found the charts on; they have the M45 info there to so you can compare.
http://www.rbracing-rsr.com/turbotech.html
 
Discussion starter · #14 ·
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#15 ·
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#18 ·
Phaaaaaantom Grip! Ballin!
 
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Discussion starter · #19 ·
Seemed like a good idea. There are some Ranger/B2 guys that use a second axle spacer on each side to put extra pressure on the spider gears and acts like a L/S. Its the same concept.
 
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#20 ·
but the strength of the mtx-75 diff is its biggest downfall; the v6 cougar guys have failures left and right at 170hp. Thats why the phantom grip is useless for this build; it add's no strength.
 
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disciplerocks
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