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Discussion Starter · #3 ·
I could be wrong, but I believe the "Stage X" is porting for the LT4......not LSA.
They just recently offered it for the LSA it’s still not on their website but I saw a Instagram story post . Kong mentioned it was for somebody wanting more out of their supercharger but not quite ready for a 2650 .
 

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2011 CTS-V Coupe with a blue wrap. Cam, smaller pulley, larger injectors, methanol injection.
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I just traded my stock sc for a kong ported sc and he thinks I'll gain 70rwhp just from the port. I also added a 2.38 upper pulley at the same time also. That should give me 3 or 4 more psi, plus the port job. I'm currently at 606rwhp. When I get it tuned , I will report back. My car is currently in the shop being wrapped. When I get it out, I'm going straight to the tuners.
 

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I just traded my stock sc for a kong ported sc and he thinks I'll gain 70rwhp just from the port. I also added a 2.38 upper pulley at the same time also. That should give me 3 or 4 more psi, plus the port job. I'm currently at 606rwhp. When I get it tuned , I will report back. My car is currently in the shop being wrapped. When I get it out, I'm going straight to the tuners.
You can always take the SC belt off as an "in case" to prevent accidental booster engagement.
 
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Thanks Blades. It's tune up to 11psi but I don't plan on getting in to any boost. I've also got two aluminum plates ready to weld onto my brick. I'm lucky I haven't destroyed it I think. I've been running 11-12 psi for a few months. I paid a shop to do some upgrades for me and reinforcing the brick was one of them. I got charged for it, but while I was swapping the super chargers I noticed the brick wasn't reinforced. Seems you can't trust anyone to do what they're paid for.
 

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I want to keep this thread going since I'm assuming a couple other peeps are interested in the gains over a standard kong port on the 1.9l platform. I will say the mild research I've done makes it seems like you need to spin the piss out of it to really maximize the benefit. I'm locked into my 377 setup so I'm really curious about this.
 

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All of these race ports trade off some midrange for power above 5800 or so.
More. . .Much More Boost Will Overcome. . . No Downside.. ;)
 

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Discussion Starter · #11 ·
More. . .Much More Boost Will Overcome. . . No Downside.. ;)
I was wondering the same my blower has only tuning time from Kong & they they would like another 1000 plus shipping for the x port .
im Kinda doubting it’s worth sending it back but they claim I could net 80-100 whp with my 9.1 2.4 pulley ration .
 

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I was wondering the same my blower has only tuning time from Kong & they they would like another 1000 plus shipping for the x port .
im Kinda doubting it’s worth sending it back but they claim I could net 80-100 whp with my 9.1 2.4 pulley ration .
While my answer to Matt was meant to be sarcastic, I also believe I understand where your coming from.

My answer to you is; has your car met your performance goals?
If not you might consider sending the blower back for this new porting they are offering.
If your happy with what you have, then there would be no reason to spend that money.

Cheers
 
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interested in this. Planning to hand port my LSA but buying a CNC port job is appealing. Line-X port is on the website now, as a drop down option. Strongly considering.
On the Jokerz site they have a RACE port selection that requires spacers and water pump machining. I didn’t see any mention of these measures relating to the Kong.


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interested in this. Planning to hand port my LSA but buying a CNC port job is appealing. Line-X port is on the website now, as a drop down option. Strongly considering.
On the Jokerz site they have a RACE port selection that requires spacers and water pump machining. I didn’t see any mention of these measures relating to the Kong.


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How much is your time worth?

I bought a Jokerz, not the full tilt one, and did not have to modify anything.

I miss though the whiste when it was brand new.
 
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Synergy Motosports is another option. They do a street port, which I would guess is a wcch/superchargers online port. LSA CNC Street Ported Blower & Rebuild

And a race port which would probably require the same water pump milling. I think that is required any time the hump behind the throttle body is removed. LSA CNC Race Ported Blower & Rebuild (Max Effort)

I'm looking into this also as I'm ready to step up to a maxed out 1.9 or jump to the 2650. Seems like race port blowers are all similar to the power curve of a 2650, more peak hp trading off mid range torque.
 
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I think you're on base there Mr. Surly. With the sale of your stock s/c plus 3k, you're right in the ballpark for a 2650.
 

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The kong 2650 plus a pulley is about $6300 shipped last time I checked.

An unported stock takeoff blower with a stock pulley can be bought for $1400, add on whatever you have for a pulley and solid isolator. Say you can get $2000 for it. If you were planning to pay another $3k for porting, yes you are pretty close to the 2650. I'm kinda in the same boat. I don't have the same size motor as you are planning to build, but enough to handle a 2650. I'm just trying to figure out what that extra money for the 2650 gets me.
 

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My understanding is that no matter what you do to the stock 1.9 blower you’ll never see more than 900 wheel, even on larger displacement engines. Please correct me if I’m wrong.
That is where the 2650 comes in to play. I think it was Rubberduck that stated the blower is a pump for a pump. If you have a small pump pushing a large pump, the restriction becomes apparent. Conversely when you put a big pump on a small pump, efficiency is lost.
Most guys running 2650’s have at least 400 CID and are seeing well above 1100-1300 Whp, no joke!
Be real with your expectations. If your limit is 900 and nothin more, stick with the 1.9. If you are aiming for 1000 or more and have larger displacement, 2650 is the obvious choice, IMO.


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