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Discussion Starter #1
I figure we could use a thread dedicated to the newly released Supercharger. If mods don't feel that way, then feel free to delete it.

At a great price. I feel like this will be a popular mod to many people.

The unit itself is very nice. Everything seems to be well made and of nice quality.



After opening up everything and going through the parts I noticed there were wires that need to be soldered into the stock wiring harness and after looking through the instructions it was indeed true. I was a little disappointed with this considering it was advertised as "Plug and Play".



The main reason I was concerned was because the guys over at fit freak had problems with the wiring on their Sprintex units and I didn't want to run into the same issues.

A week after Romiata (Who was very helpful giving me tips on the install) installed his unit, My buddy and I decided to install mine.

The install took about 7 hrs in total. There were some issues that we ran into, but some of those were definitely user error.

One of them was the O-ring used on the elbow that connects to the supercharger. Romiata was the one that experienced this first as he went to connect the elbow with the supplied O-ring it snapped on him. He went to Auto-Zone (I picked mine up at Advance) and ended up finding an O-ring that fit.



The part number on that is 35763. As soon as I started to connect the elbow with the supplied O-ring I could see it was going to snap so I just ended up using this one.

The big time consumers were the wiring and putting on the belt.

The wiring was time consuming only because we were being as careful as we possibly could. Otherwise it was very straight forward. The instructions were very helpful here.

The belt is in a very tight spot and needs to be quite tight so getting it onto the pulleys was a bit of a challenge. But with some maneuvering we were able to get it on.



Started her up and we were good to go. No issues at all.

The instructions were well written and the pictures were very helpful. I'm sure if I had to do the install again I could probably get it done in about 4-5 hrs, but you live and learn.

The only issues that I ran into here is the hood seems to make contact in one spot with the blower. I'm not sure when it makes contact because when I shut the hood it doesn't hit it when closing. I'm wondering if it happens when the car starts up.

Here is where it is hitting:



Both Romiata and I removed the heat shield that is on the underside of the hood. Because the blower obviously makes contact with it. However after removing this, Romiatas supercharger does not make contact with his hood. No clue as why mine hits and his does not.

I'm going to add a few washers so it no longer makes contact.

I've put probably ~500 miles on the car since the install. The car drives exactly like stock, well except the added power and supercharger whine :thumbsup:.

You can start hearing the supercharger whine at about 2000 rpm.

Gas mileage has gone down a bit, but it could also be attributed to a heavier foot and the fact that the weather has been fluctuating between 20s-60s since I've installed it.

The car still needs a real tune as well. But the one they have on the piggyback works just fine for now.
 

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Discussion Starter #2
There is still plenty of mods that can be done to this kit.

Bigger Throttle body, Port the restrictor on the elbow, smaller pulley, meth injection etc. (These are all on my to do list! lol)

I'm going to be adding a boost gauge and starting to tune it in the upcoming weeks.

I have yet to get a chance to play around with the tuning software so that should be fun as well.
 

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You might be able to resolve the hood contact issue by adjusting the hood latch. Loosen those 3 bolts and see if you can raise the hood position when it's closed, and then tighten it down again. It doesn't look like you need much distance
 

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Discussion Starter #4
You might be able to resolve the hood contact issue by adjusting the hood latch. Loosen those 3 bolts and see if you can raise the hood position when it's closed, and then tighten it down again. It doesn't look like you need much distance
Hmm.. I'll take a look at that. Thanks.
 

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Engine mounts should fix that problem... Not stock ones but the ones we r getting through innovative.. Well then again is that when the engine is rocking around that it hits? Also could you post a shot of the hood spot a lil further back I would like to see where the hump is exactly.
 

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If there's any info anyone needs regarding this kit, please let me know. The 5 that currently have purchased this kit are the only 5 installed on the specific CR-Z kit. All the kits you would see in the Malaysian cars were Fit kits that were modified to fit the CR-Z as it was too tall to clear the hood.

We can see that there is an issue with the hood clearance still on these cars, and I have brought it up to my friends at SPRINTEX multiple times, and they are working on the issue.

If anyone also needs any technical support, please feel free to message me.
 

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Discussion Starter #9
Get some spacers on the hood hinges... it'll give you a really ricey look but it'll work AND be functional.
Yeah, that is part of the reason I didn't want to put the spacers on, but it's probably going to be my only option.
 

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In my quest for boost lol I have few questions?

What is the preset psi it makes right from the box?
Is it capable of more boost given the correct tune?
What are some realistic max hp we can achieve with a few more tweeks as d16punk already said I.e. bore out restrictor elbow, bigger TB etc.?

I know it hasn't been out very long so nobody hasn't had much time to play with it, but I'm still trying decide between Sprintex or JR SC setups.
 

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Discussion Starter #12
In my quest for boost lol I have few questions?

What is the preset psi it makes right from the box?
Is it capable of more boost given the correct tune?
What are some realistic max hp we can achieve with a few more tweeks as d16punk already said I.e. bore out restrictor elbow, bigger TB etc.?

I know it hasn't been out very long so nobody hasn't had much time to play with it, but I'm still trying decide between Sprintex or JR SC setups.
I have been told that it is 8 psi out of the box. I'm in the process of getting a boost gauge hooked up so I can verify that number.

Boost is dependent on the pulley size. The smaller the pulley you go the more boost you will make (Plus a tune obviously). No smaller pulleys are available at this time but I'm sure you can get them custom made.

I'm pretty sure 200 whp is not out of the question, possibly more. Like you said, no one has really had time to play with it yet so we shall see.
 

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The Sprintex doesn't have an intercooler. You probably won't be able to do an aggressive tune with more boost unless you find some way to cool the compressed air (intercooler, methanol injection). I'd like to see someone design a custom Sprintex supercharger manifold with an in/out port for intercooler piping. Nothing against methanol injection, but I'd prefer a permanent passive cooling option.
 

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From what I can tell, the Sprintex is already being spun at its "maximum" speed and there is instead a restrictor that is limiting the boost. I suppose it could be spun faster, but you will be off the compressor map as provided by Sprintex. I don't know much about this restrictor, especially if it is integrated into the inlet pipe or if it is a removable part. It seems like the restrictor also serves to keep the boost at a constant level, since the volumetric efficiency rises as you spin it faster, while the restrictor will do the opposite to "cancel out" this effect. So without the restrictor, the boost will start at about the "rated" 8-9 psi at low RPM and rise to a level that I haven't been able to figure out just yet. I'm wild ass guessing it to be 16-20 psi at redline.

Also, an air-to-air intercooler does not work well with a positive displacement supercharger. That's really only for dynamic compressors like turbochargers and Rotrexes. You need a water-to-air intercooler and there simply is not enough room for one or else Sprintex would have already incorporated one into the design as they have for other kits that they have released.
 

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Discussion Starter #16
From what I can tell, the Sprintex is already being spun at its "maximum" speed and there is instead a restrictor that is limiting the boost. I suppose it could be spun faster, but you will be off the compressor map as provided by Sprintex. I don't know much about this restrictor, especially if it is integrated into the inlet pipe or if it is a removable part. It seems like the restrictor also serves to keep the boost at a constant level, since the volumetric efficiency rises as you spin it faster, while the restrictor will do the opposite to "cancel out" this effect. So without the restrictor, the boost will start at about the "rated" 8-9 psi at low RPM and rise to a level that I haven't been able to figure out just yet. I'm wild ass guessing it to be 16-20 psi at redline.

Also, an air-to-air intercooler does not work well with a positive displacement supercharger. That's really only for dynamic compressors like turbochargers and Rotrexes. You need a water-to-air intercooler and there simply is not enough room for one or else Sprintex would have already incorporated one into the design as they have for other kits that they have released.
The restrictor is welded in there so you would need to grind it down.

I'm pretty sure you are correct about the restrictor being used for efficiency and to keep boost at a constant level.

The guys over at fit freak spoke about grinding it down, but I'm not sure if anyone has attempted this. That thread pretty much died down.
 

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What makes it so difficult to install an air to water intercooler? they look like they are pretty small so it could fit in front of radiator like any other intercooler and then just mount the water pump. It's probably a lot more difficult than im making it out to be but it seems doable.
 

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There are two heat exchangers in a air-to-water intercooler setup... One to take the heat out of the intake air and one to dissipate that heat to ambient air. The problem with an air-to-air in conjunction with a positive displacement supercharger is the excess volume of the piping. The air-to-water eliminates this issue by having it immediately after the supercharger. It would seem like no big deal to replace the lower manifold with one, but it actually presents a ton of issues. The supercharger only discharges out of a somewhat smallish port, so there needs to be enough space to allow the air to distribute evenly to the elongated inlet of intercooler as well as some space after it before the cylinder head ports. The air flow also has to make a 90° bend within the intercooler, presenting many issues to the design. Plus trying to integrate EGR presents even more issues. Even if something could be designed, the heat exchanger portion would necessarily have to be so very brief it wouldn't be worth doing it in the first place. Not to mention it would be a very custom, expensive piece for hardly any benefit.

Basically, it's not going to happen. If Sprintex could have done it, they already would have, like they did for the BRZ kit.
 

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There are two heat exchangers in a air-to-water intercooler setup... One to take the heat out of the intake air and one to dissipate that heat to ambient air. The problem with an air-to-air in conjunction with a positive displacement supercharger is the excess volume of the piping. The air-to-water eliminates this issue by having it immediately after the supercharger. It would seem like no big deal to replace the lower manifold with one, but it actually presents a ton of issues. The supercharger only discharges out of a somewhat smallish port, so there needs to be enough space to allow the air to distribute evenly to the elongated inlet of intercooler as well as some space after it before the cylinder head ports. The air flow also has to make a 90° bend within the intercooler, presenting many issues to the design. Plus trying to integrate EGR presents even more issues. Even if something could be designed, the heat exchanger portion would necessarily have to be so very brief it wouldn't be worth doing it in the first place. Not to mention it would be a very custom, expensive piece for hardly any benefit.

Basically, it's not going to happen. If Sprintex could have done it, they already would have, like they did for the BRZ kit.
Well I guess that settles that question hahaha
 
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