OK, so a while back i phoned HKS USA, and i don't know who i spoke to, but i asked about the Rotrex supercharger, and what sort of power gains you would get from the kit, if you added cams, headers, HFC's and a decent dual exhaust. The guy then tells me, that you would get the exact same power gains as if you only had the Rotrex Supercharger????? Is there some issue with flow? Has anybody got first hand experince with this?

 

Anybody?

 

Sorry but the HKS blower just plain sucks.....If you want to spend 6k+ and get only 80rwhp then it's all good.

But otherwise get a turbo, and if you really want a supercharger get a Vortec or Procharger.

 

I know that. I have no intentions in getting it, it's just something that boggles me a bit. So please, anybody else?

P.S. I'm sure thare are many people here that would totaly disagree with you.

 

You are asking a salesman of a particular product to speculate on what power may or may not be gained by parts that he does not necessarily sell. Now if we're talking ALL HKS parts, then that's one thing, but there's no way that he can know what type of power will be made out of parts that he doesn't sell.

 

I went through the same considerations about a year or so ago. The EMS included in the HKS kit is programmed to be used with stock headers, cats, cams, etc. The only thing you can touch on the car with HKS blower is the exhaust and I am willing to bet that it will not do anything powerwise, but give you a better sound. Everyting else I listed will actually cause harm. Any kind of airflow increase mod requires additional fuel, otherwise you will only run leaner (heat, detonation, etc). The supercharger will respond to these mods as would any other supercharger, but ONLY if an HKS licenced tech would tune the EMS with their proprietary (sp?) software.
So all in all, if you like superchargers and can get a good deal on it and have an HKS tuner in your area, I'd say go for it.

 

talk to (PumpedVa) he has this supercharger and has been trying everything known to man to get some extra power out of it.

 

Ok lay this to rest have EVERYTHING listed above even the HKS Fcon pro and I am making just a tad over 100 to the wheels over stock . Now I am also runing a AT but trying to go full show so at this point more HP is not a issue.

But yes I dumped a ton for this HP and yea would have gone turbo but it was for me and my wife to drive and at the time I was shopping daily driver so much for that hehe

 

And I have also replaced my compressor (install error) and fcon shorted out or something but covered by HKS

 

I understand that. But the fact that he said there would be no additional power regardless of wether it was HKS or not is what i dont get.
sorry computer **** up, didn't get the last few replies!!

 

well yea you can get more power just going to cost you and thats where the TT topic comes in

 

OK, got you guys. It will make more power but only with a tune.

 

Only with a tune yes! but remember you CAN NOT tune the fcon that comes with the kit

 

Well, The HKS Rotrex, though lower in hp comparitively, is all about reliability and driveability. I'm sure you've read some of the post in here about the mis-haps of FI'd Z owners. I would love to have the power that Vortech of ATI puts out, but I want to know that when I drive my Z hard, that I will not have a rod shooting out of my block. JMHO

 

The HKS does make some great trq. , but is short on the top end . A Vortech and ATI , if left along at stock boost levels will be just as safe for the motor . HKS includes an extra injector for fuel . I dont know if this is any safer or more reliable than raising fuel presure like the other two do . You can't do much to improve the HP on a HKS , but you can on the Vortech and ATI and that is when reliability comes into play . As does any FI when you start upping the HP level .

 

want reliability and driveability that is cheaper and looks better for show?

Stillen s/c. Makes about the same power as the HKS probably......and definitely reliable as snot

 

If the Stillen SC didn't have to make me "hump-up" the hood, I would have had it a long time ago. I love it when I hear about the instant response and the gobbs of torque, and definately it being CARB exempt, but I just can't live with a hood like that.

 

it's quick, too.........but comparatively, the stage 3 vs my TN kit, well, I destroyed a stage 3 car from a 70 roll.

 

ninja is correct. the F-Con SZ is tuneable, but only by an HKS pro-dealer. you can have it tuned and walk away or get a F-Con Navigator and have it installed by an HKS pro-dealer. once the Nav is "unlocked" by your installer, the F-Con SZ can be tuned using the Navigator. im not totally sure about the 9 lb pulley, because i dont know anyone who has installed one. it doesnt seem like it would be too tough to get a 9lb pulley from Rotrex and a smaller belt, i just dont know anyone that has done it yet. finally, the HKS kit does come with a new fuel pump and 2 auxillary injectors to correct the fuel solution.

BTW - i will be installing a crawford plenum, topspeed headers, kinetix test pipes and have it all tuned by kenny tran in late may. i will post my results. hoping for 330+ at the wheels with decent tq numbers. (and all of it (installation included) will have cost me less than the price of an APS TT kit)

parting shot - the HKS rotrex kit has never popped an engine that i have heard. that is all