Boostec Supercharger Information

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I can't believe they actually made it easier to install those cursed manifold bolts. I swear I needed a couple extra elbows to get mine on last time. It's way easier if you pull the air filter housing, gives you some space to work.

Any idea if the manifold is compatible with the various years of idler pulley / PS pump? I know from 87-95 the PS pump bracket moved with the adjuster, on 96 vehicles another idler was added that moved and the PS pump was stationary, and on 97-01 the design was similar to 96 but changed slightly iirc. All this applies to LHD, the RHD vehicles moved the alternator up and put the AC compressor where the idler on 96-01 LHD is, haven't worked on an RHD yet so I have no hands on experience with them.
 
o-gauge-steamer said:
Urban,
Mechanically, we are complete. This kit very nearly assembles itself onto the XJ. no fighting to get anything bolted into place. I do believe we are looking to install the SMT-8 today (3/30) and proceed from there.

There are a couple of minor issues that will be resolved prior to kit availability. One is the replacement idler/tensioner bracket. There is a mount for an axtra idle pulley we do not need but is required on the RHD vehicles.

Target install time is "less than a say". I believe that it can be done in 5 to 6 hours. We would need to start with a stock XJ and time it. This install involved removing to prototype SC and that took extra time. The biggest changes from proto to production is the intake manifold and the SC mounting flange. The prototype was even more difficult to work with than a 99+ intake manifold... The production unit has tool clearance for the three, lower mounting bolts that are such a pain. You can actually SEE what you are doing. The SC flange bolts much easier also. Mechanically, extremely well thought out. Keep in mind that literally millions of dollars have been spent on this kit as the market for the kit is in the millions of vehicles.

Sprintex is owned by ATG which is a publically traded company on the Australian Stock exchange. ATG is a ISO9001 certified company for those of you that know what that means. For those that don't, to get an ISO9001 cert, there are quality control measures that must be in place and adhered to. It is expensive to get the cert and you are audited every year. I was on the ISO commitee when I worked for NTI here in the Springs...
Click to expand...


I know the sprintex superchargers are well made, and I know Rick's new manifolds look good enough to hang on a wall (like art), BUT my interest in these kits is a bit different than yours.

I already own one of Rick's previous 4.0L supercharger kits. My manifold's different, and my kit uses a Magnuson MP90. I'm interested in the piggyback and the parts that go along with it. Rick promised to sell me those parts when he gets his new kit up and running. In the meantime, my unit's just sitting in a box.
 
OK, progress on the wiring we should be under full control tomarrow!

We are also planning to be at the Colorado M&G April 23. The XJ will be available for drives... Rick will be at Moab for the Easter Safari.
 
o-gauge-steamer said:
OK, progress on the wiring we should be under full control tomarrow!

We are also planning to be at the Colorado M&G April 23. The XJ will be available for drives... Rick will be at Moab for the Easter Safari.
Click to expand...

Awesome! We're going to do our best to be there as well.
 
The SMT-8 wiring is in place and ready to test. I became ill and had to bail. Nothing to do with the project, it's just that pesky thing that has knocked me out of work... So we will need to test the tune setup of the SMT-8.

Rick and I looked carefully into what it is going to take to install the electric water pump. Step one is ditch the factory air box. From there it should be easy! Install the pump into the lower hose, remove the T-Stat, Install the controller temp sensor in the upper hose, knock off the mechanical water pump impeller, wire the controller, set the controller and it will be good to go. Almost can be done in the time it takes to talk about it. The controller will also drive an electric fan or two. We are thinking of using three electrics. One tied in to replace the factory electric and the other two ran from the controller.

One nice thing about the controller is that it runs the pump after engine shutdown to help eliminate heat soak.
 
Sorry for the delay, I've been under the weather a bit...

The installation is complete, Piggyback is working and we are making about 6lbs of boot. Care to break the back tires loose with the brake applied? This is the ticket! For those going to the Easter Jeep Safari, Rick will be there to answer questions and I do believe the XJ will be there as well. For those lucky enough to live in Colorado, the XJ is slated to be at the M&G on April 23 and will be available to impress. I have driven it and can tell you that it is a beast. We have started looking at the Davies-Craig EWP (electric water pump) install. Should give a performance and mileage boost due to redused engine drag. We are also inprocess of building a cowl induction setup to get as cold as possible air charge for the blower.

Final Installation of the SC...

P4040013.jpg


The red box is the piggyback. The SMT-8 has an USB port so you can tweek the performance. What fun!!!
 
You're missing the front CCV hose to the air filter housing :spin1:

Looks great!
 
gradon said:
You running stock TB? This is a good one: http://www.thefastman.com/Throttlebodies40.asp and Jeff does good work as well: http://www.strokedjeep.com/tbody.html. I imagine there is some point high in the rpms that the stock TB acts as a small straw for the supercharger. Might be good for some before and after dyno comparos.
Click to expand...

Under natural vacuum, I think the engine takes about 4500+ RPM to want more than the TB flows. A larger TB simply allows more air to flow at a given throttle position until this flow limit is reached.
Given that it is the smallest flow capacity in the engine that is the choking point, I think a larger TB would help - but still, probably not until super high RPM.
The throttle body could become more of a choke at lower RPM if you went and ported the head or went SBC valves, etc - it is all about getting the max CFM numbers between the head, TB and air intake (or boost) to match as close as possible. Of course, more flow on the intake isn't going to hurt anything.

And folks, feel free to tell me if I'm ass-backwards here.
 
There's things I see that I like and things I don't in this kit.

Likes:
stock hood on an xj (Tj this isn't an issue)
Compact design actually increases room (or appears to)
your making 6lbs (great start but what is the limit of this sc? Most guys will be happy with 6lbs)
only bolt on sc kit for xj's

Dislikes:
7th injector
Reasoning is running fuel through a sc is not a great idea to me though the runners are short fuel is going to take a path of least resistance and you can possibly lean out the cylinders farthest from the injector. I personally rather upgrade the size of my injectors and run a piggyback because I know each injector is in that runner and they can pump the fuel. Sure injectors are expensive but for $5k it shouldn't be a problem. Though issues with piggybacks are CA smog (fml)

And for the price it shouod already include a nice intake system. But a cowl intake may not flow enogh to feed the sc.

I run the avenger kit on my Tj and I have my complaints about it too there isn't a perfect kit at this time let's face it. Kennebell was close but hood becomes the issue. Ripp mods is on the right track for an xj I'm not the biggest centrifugal fan but xj space is limited. Though I belive boostec is on the right track just need more time I personally wouldn't buy the first gen system of it but I feel they will get it sorted out.

That's just my 2 cents overall this is a nice kit but between this and brysons current setup I'd run brysons but his is custom.
 
An FYI... Rick Rimmer is the designer of the Avenger SC... And yes, the front breather had not been replaced when I snapped the pic. We were in a bit of a hurry to go out and smoke the tires... I realize the seventh injector is a sticking point for some. I can only say that Sprintex is selling thousands of thier SCs worldwide with the "extra" injector. And it it a $4k kit not a $5k kit...

We have ran the calculations on air flow requirements for Hp. A 242 cuin engine at 5,000 rpm and 6lbs of boost needs 493cfm of air flow. The Spectre Cowl Intake system flows at 485cfm (per Spectre) and so the concept, as a whole is sound.

Here is a handy online calculator http://www.mk5cortinaestate.co.uk/calculator3.php for your perusal.

As a side note, I believe that the stock (54mm) TB will flow 415cfm Whereas a 60mm TB should flow in the 600cfm range. Feel free to jump in and correct my TB calculations. So, if you were wanting to run at or near red line a larger TB would be recommended.
 
Stock tb is enough even for 9# boost.
I'm not saying my avenger kit is any better in fact I think it's worse lol. No engine management is just plain scary I run it but I can feel when it loses power from the a/f being all over the place. I'd rather run a 7th injector lol. I'm not knocking ricks work with the boostec kit. $4k is about my total cost to get my avenger setup to where I'm happy with it.
I paid $1600 for a used blower, injectors and mounting equipment. $30 to replace the snout bearings. avenger won't even sell parts for my sc anymore because t the old style. But where I spent the extra money was engine management. Bought the aem f/ic $350 Bosch 36# injecotrs $150, my 9lb pulley from kennebell. An oversized water to air radiator $70 and an icebox $100 and new water pump for the s/c $100

like I said I'm not saying the boostec kit sucks as of right now ithink it's the best option out there. But I'd like to see more testing before I purchased. And the number one issue for me is will it be carb legal? If so the dd xj may have it's new upgrade lined up. If Bryson dosnt get there before I have the cash lol. I hope you enjoy your kit and I'm lookng forward to seeing more Im just giving my points for discussion sake.
 
h-townxj said:
Stock tb is enough even for 9# boost.
I'm not saying my avenger kit is any better in fact I think it's worse lol. No engine management is just plain scary I run it but I can feel when it loses power from the a/f being all over the place. I'd rather run a 7th injector lol. I'm not knocking ricks work with the boostec kit. $4k is about my total cost to get my avenger setup to where I'm happy with it.
I paid $1600 for a used blower, injectors and mounting equipment. $30 to replace the snout bearings. avenger won't even sell parts for my sc anymore because t the old style. But where I spent the extra money was engine management. Bought the aem f/ic $350 Bosch 36# injecotrs $150, my 9lb pulley from kennebell. An oversized water to air radiator $70 and an icebox $100 and new water pump for the s/c $100

like I said I'm not saying the boostec kit sucks as of right now ithink it's the best option out there. But I'd like to see more testing before I purchased. And the number one issue for me is will it be carb legal? If so the dd xj may have it's new upgrade lined up. If Bryson dosnt get there before I have the cash lol. I hope you enjoy your kit and I'm lookng forward to seeing more Im just giving my points for discussion sake.
Click to expand...

How is the AEM working for you?

Hopefully we'll have our shop soon and full kits will definetly be coming. :)
 
It's wonderful but it's only semi tuned need to take it to the tuner and have them fine tune it ok I'll stock thread jackIng now lol
 
Haha I know Im excited to see that people are building more forced induction kits for the xj.
 
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