Supercharging a 944 - Why so hard?
#256
Here is the bottom of the IHI S/C.
There are two oil compartments for the front bearings/gears and rear bearings each with a feed and return hole. On the mazda, these are fed by thin engine oil, and those guys complain about it leaking out of seals and getting gunked up. Whether I plumb to engine oil or seal off and make an internal bath of S/C oil, I need to figure out what fittings I can shove in here. I didn't grab the lower bracket from the junkyard, but here's what it looks like (the IHI just sits on top)
Here are some up close pictures of the holes:
Can any of you identify what fittings I need to plumb or seal these, and where I might find them?
There are two oil compartments for the front bearings/gears and rear bearings each with a feed and return hole. On the mazda, these are fed by thin engine oil, and those guys complain about it leaking out of seals and getting gunked up. Whether I plumb to engine oil or seal off and make an internal bath of S/C oil, I need to figure out what fittings I can shove in here. I didn't grab the lower bracket from the junkyard, but here's what it looks like (the IHI just sits on top)
Here are some up close pictures of the holes:
Can any of you identify what fittings I need to plumb or seal these, and where I might find them?
#258
Racer
Thread Starter
VEMS + SC + Nitrous
So I just go my VEMS PNP from Peep, and it got me thinking again (dangerous).
How about low boost SC + low shot N2O + no intercooler? As I get older complexity of projects is a turn-off. Was thinking of a low shot Wet N2O system instead of the SC initially.
How about low boost SC + low shot N2O + no intercooler? As I get older complexity of projects is a turn-off. Was thinking of a low shot Wet N2O system instead of the SC initially.
#259
Rainman
Rennlist Member
Rennlist Member
do some research if pre-SC or post-SC injection is better.
that stuff comes out cold and does some "intercooling" on its own. pre might keep the rotors cooler which might help general efficiency? but post would help take the heat out of the charge.
both
that stuff comes out cold and does some "intercooling" on its own. pre might keep the rotors cooler which might help general efficiency? but post would help take the heat out of the charge.
both
#260
Rainman
Rennlist Member
Rennlist Member
update i guess...
last weekend i finished welding my intake manifold and primed it.
yes, it's got stacks inside, about 10" from stack entrance to valve seat, and the D plenum is big enough to roll a tennis ball through. about 0.75x displacement for plenum volume.
..
..
yesterday i was making new brackets to mount my AC condenser and intercooler, so i can then start "laying pipe" (plumbing the IC).
light at the end of the tunnel...
last weekend i finished welding my intake manifold and primed it.
yes, it's got stacks inside, about 10" from stack entrance to valve seat, and the D plenum is big enough to roll a tennis ball through. about 0.75x displacement for plenum volume.
..
..
yesterday i was making new brackets to mount my AC condenser and intercooler, so i can then start "laying pipe" (plumbing the IC).
light at the end of the tunnel...
#261
thanks for the update!
#263
My brother is looking to sell my entire Supercharger setup if anybody is interested. It is not a kit but comes with everything you need to supercharge a 944(with some minor/major mods)
Comes with DME(Rogue) with tuner and logger.
Rogue NA-Tune with custom stainless MAF tube
Eaton M90
Top view of where the SC was fit.
SC Mounting bracket
Intercooler and piping
and much much more.
Its a great way to get started, most of the hard work is done. around the $1700 range for everything.
Comes with DME(Rogue) with tuner and logger.
Rogue NA-Tune with custom stainless MAF tube
Eaton M90
Top view of where the SC was fit.
SC Mounting bracket
Intercooler and piping
and much much more.
Its a great way to get started, most of the hard work is done. around the $1700 range for everything.
#264
My current plan, in order to avoid yet another custom elbow and vacuum connections, has the supercharger going pretty far back. It fits ok, except it's going right through where the dipstick needs to go. Has anyone had any success bending or otherwise relocating the dipstick?
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jderimig (09-28-2019)
#265
Thought I might show some progress photos of my S2 SC build, I'm using a Rotrex C30-94, with 100mm pulley, giving about 5-6PSI, No intercooler but a modified oil coole cylinder tyo cool down the Bypassed air which gets heated by the SC then gets diverted to in front of the SC, therefore a potential builup of heat can occur,
The SC ann Nissan Quest alternator are coupled together and both hang off the factory alternator mounting points, the SC has a front and back mounting brackets made out of 6mm Aluminium (tried to find Aluminum here in Oz but couldn't find it) the effect is a rock solid setup
Stock alternator
Space
Some shaving of the alternator was needed
With the AFM in place
The SC ann Nissan Quest alternator are coupled together and both hang off the factory alternator mounting points, the SC has a front and back mounting brackets made out of 6mm Aluminium (tried to find Aluminum here in Oz but couldn't find it) the effect is a rock solid setup
Stock alternator
Space
Some shaving of the alternator was needed
With the AFM in place
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ealoken (09-26-2019)
#268
Rennlist Member
Yes, I would personally get all 944T factory parts as it would be the simplest method. 944T rods, pistons, crossover, headers, downpipe, exhaust, turbocharger, wastegate, oil drain mount, oil pan, intercooler, pipes, injectors, intake, wireharness, both ecu’s, diverter valve, and a few other components. Getting all that you used will cost you... more than you want but honestly around 3-4k with you doing the work and mostly stock used parts. You also need to consider power goals and if you want low boost like 7psi or want mid around 15-18psi, which would make a difference in cost of what you may want to get. Then you would want to upgrade brakes and suspension as more power shows other weaknesses in the driveline. This is a dangerous slope, hence why the supercharger and the v8 swaps are tempting. I believe the supercharger can be done cheaper and are good for someone wanting insta power but looking for a little more thrill. The v8 can be the same cost or more depending on the level you want to go and quality of the build.