Supercharged KA24DE FAQ Guide

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TryingToTurbo
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Supercharged KA24DE FAQ Guide

Post by TryingToTurbo »

What do I need to supercharge my KA24DE?
-You Will Need:
1) Adapter Bracket (Mates Supercharger to Stock Upper Plenum)
2) Adapter Bracket (Relocates Alternator for Supercharger Belt)
3) Tensioner Pulley (Prevents Belt Slippage On Supercharger Pulley)
4) Supercharger Belt (Connects Supercharger Pulley, Alternator Pulley, and Crank Pulley)
5) Intake Piping (Non Standard 4-Bolt Flange on Supercharger to Throttle Body)
6) Throttle Body Mount (Must Relocate Stock Throttle Body & Cable)
7) Eaton M62 Supercharger
8) Oil Filter Remote Mount (Some Filters MAY Clear / Dependent on Adapter Plate Thickness)
9) Remote Mount IAVC & AAC Location (Or You Can Discard)
10) Larger Injectors (370cc Sidefeeds @ Minimum On Stock Boost)
11) Larger Output Fuel Pump (Walboro 255lph)
12) Tune (NIStune Real Time Tuning or JWT Bench Tune, etc)
13) Clutch (Needs To Support Atleast 250wtq)
-You May Want:
1) Q45 Throttle Body
2) Larger MAF (Z32 or Q45)
3) Water Injection (HIGHLY Recommended / Necessary Above Stock Boost)
4) High Boost Pulley
5) Wideband O2 (A Must For Real Time Tuning)
6) Free Flowing Exhaust (3” Piping / No Cat)
7) Aftermarket Camshafts and Cam Gears (JWT Redrilled Gears & BC Stage 2 Cams For Example)
8) DEI Fuel Line Heat Wrap & Fuel Filter Relocation (May Get Hot Near S/C)

What Supercharger Do I Need?
- Typically, the Eaton M62 supercharger is used on the KA. It can be found on the Nissan Xterra and Nissan Frontier from the factory on the supercharged V6 models.

Does the Supercharger Need Any Modifications To Fit/Function Properly?
- Probably. The bypass valve opening is flush with the top of the supercharger. Therefore, you will need to grind some of the bypass valve chamber away or drill holes in it to allow for air to enter the chamber when the valve actuates.

Who Makes These Adapter Kits?
-Visit KA24DER.com for the newest kit for details and in-depth pricing.
-Thomas Knight used to produce kits, but are now discontinued.

Whats The Difference Between The Two Kits?
-In my opinion, the 5 key advantages are:
1a) KA24DER kit has a CNCd aluminum alternator bracket that has been FEA tested
1b) Thomas Knight Kit uses a piece of drilled flat steel

2a) KA24DER kit has IACV and AAC mounts built in to the Adapter Plate
2b) Thomas Knight Kit requires you to remote mount these in an already cramped area

3a) KA24DER kit has radiused plenum ports for smoother airflow and tapped vac sources and includes all OEM gaskets
3b) Thomas Knight kit does not have any of this

4a) KA24DER kit has a mandrel bent 3" aluminum intake pipe with Q45 TB flange
4b) Thomas Knight kit I don't think even included an intake, most are home-made

5a) KA24DER kit was developed by KA-T.org's founder and his partner, and provide great customer service
5b) Thomas Knight kit is discontinued and doesn't offer customer support

How Much Can I Expect To Spend On The Adapter Kits?
-A new KA24DER.com kit will cost approximately $1,200. (Supercharger not included)
-A used TK kit will cost approximately $1,200. (Including a supercharger)
-A used TK kit will cost approximately $800. (Supercharger not included)
**FWIW, a rebuilt supercharger can be found on eBay for $450 + $150 core charge.

Will My Supercharger Need To Be Rebuilt?
- If it has over 50,000 miles, it would be a smart idea to replace the supercharger oil with OEM oil from GM or Nissan. It would also make sense to replace the snout coupler at this time with one made from aftermarket, durable materials. These can be found on eBay.

How Much Power Will I Make?
- There is no exact answer for this, but you can expect anywhere from 200whp – 250whp depending on your supporting modifications at stock boost levels.

Will I Need To Rebuild My KA24DE?
- If you have good compression, and a healthy motor in general, it shouldn’t be necessary. A KA24DE has been seen to handle 500+whp on a stock block. But, for added safety, I would probably install a fresh Fel-Pro headgasket and ARP headstuds just to be safe.

If I Want Forged Internals, What Should I Get?
- This comes down to personal preference. But, I would recommend 9.5:1 Supertech pistons (STD bore or .020”), Eagle H Beam Rods, ACL Bearings, OEM Timing Kit, and ARP Head Studs. Underground Motorsports sells rebuild kits for good prices if you don’t’ want to piece it together yourself.

How Big Is The Stock M62 Pulley?
- The M62 uses a 2.64” pulley stock, and makes approximately 10psi on a KA24DE with said pulley.

Does Anyone Make High Boost Pulleys For The M62?
- Pulley Boys offers 4 different quick change pulley kits for the m62. They offer a 2.64”, 2.5”, 2.4”, and 2.3” pulley.

How Much Boost Will A New Pulley Make?
- This hasn’t been tested on the KA yet, but it is assumed that for every .1” the diameter of the pulley decreases, you can see an increase of 1psi of boost. Therefore a 2.5” pulley should put you at ~11.5psi, the 2.4” at ~12.5psi, and the 2.3” at ~13.5psi.

Will Underdrive Pulleys Affect My Boost Levels?
- You should only see a reduction in boost levels by using an under drive crank pulley. By reducing the diameter of the crank pulley you will reduce the rate at which your supercharger belt will turn.

Can I Use A Different Supercharger on my KA?
- So far, the only kits available to supercharge the KA24DE are made to use the Nissan M62 only. The mounting plate will be different for other types of supercharges as well as the intake piping. But, if you are into fabbing things, any supercharger can work.

Can I Run Water / Meth Injection With My Supercharger?
- It has been said that running meth with wear the anti-friction Teflon coating from the rotors in the supercharger. With that being said, many used superchargers begin to lose this coating by the time they reach your hands anyways. However, if yours are still in good shape, water injection could be used with no adverse affects to the coating.

What Mix Should I Run Of Water/Meth?
-100% water injection will allow for the greatest intake temp reduction, but will not allow advanced timing to be run.
-A mixture of meth and water can be used to lower temps slightly and allow for slight timing advance when being sprayed.
-This mix can vary in order to fine tune your goals. (IE use 75% water, 25% meth for increased cooling of air temps with lower amounts of timing advance, rung 25% water, 75% meth for less cooling of air temps for more timing advance can be utilized).
-Your tune should be adjusted for meth injection, however for pure water injection it isn't required.


Feel free to leave suggestions on things to add or revise. This is by no means the end-all-be-all. More of a good starting point to help weed out some of the common questions that flood the forums, especially now that supercharging is becoming more popular.
Last edited by TryingToTurbo on Fri Nov 19, 2010 8:49 am, edited 6 times in total.
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Post by blacks13coupe »

Very nice write up, about time someone did one of these. Should get a sticky.
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Post by sdaigle240 »

Stick this!
airman wrote:I'm all about spreadsheets. Bitches love spreadsheets.
schmauster920 wrote:I shall cast my own pistons in the sands of time, then forge them in the depths of hell.. as funds allow
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hy35 18psi Build Thread: viewtopic.php?t=38784
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Post by adamky »

Nice. This needs to be stickied for sure.
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Post by timbo »

this may be helpfull to some people the nissan gasket number for the eaton m62. I have a small leak on mine and have to replace it and it takes a while to find it. might help.

gskt-collector
14033-5S700

also has an 80130 in small numbers above the 5s700.
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Post by TryingToTurbo »

timbo wrote:this may be helpfull to some people the nissan gasket number for the eaton m62. I have a small leak on mine and have to replace it and it takes a while to find it. might help.

gskt-collector
14033-5S700

also has an 80130 in small numbers above the 5s700.
Nice. I would like to get a list of all the part numbers like these. Especially the one for the belt to use for the supercharger...
Built KA24DE: Wiseco 9.0:1 | Eagle H Beams | ARP Head & Main Studs | BC 272s & Springs | Supertech Valves
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Post by iamtheyi »

and links to where we can find all these parts... I'd be very very interested in that...
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Post by tom550 »

there needs to also be a supercharged ka for dummies
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Post by TryingToTurbo »

tom550 wrote:there needs to also be a supercharged ka for dummies
I will be doing this once I finish my setup. Not having money makes it hard for me to buy what I need :(
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Post by SAKURA »

...........
Last edited by SAKURA on Mon Jun 14, 2010 9:43 pm, edited 1 time in total.
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Post by tom550 »

SAKURA wrote:if anything, its going to be written heavily for the dohc
YEA :(
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Post by klattr1 »

SAKURA wrote:if anything, its going to be written heavily for the dohc
Our guides on the website are written by forum members...if you want one for the SOHC, then you are more than welcome to write one my friend
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Post by tom550 »

so why isnt this a sticky yet? i say it sould be up there
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Post by adamky »

Nice. Finally stickied.

One thing I would like to add is that water injection is HIGHLY recommended for a M62 setup. That, or an ECU that's fully tunable, so that you can take out lots of timing.
Wiseco/Eagle, JWT S1 cams, BC valve springs, PT5857, ID1700 injectors, SR20DET ECU w/ Nismotronic, COP conversion with LS ignition coils, etc, etc...
--> YouTube channel --> my build thread
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Post by timbo »

i will go check my belt that came with my kit, I might have the whole thing for sale but not sure yet, it's too hot down here in alabama for no water/meth injection. anything else i could look at whle it's off the car let me know. Also talkin to a CNC place thats local to get the CAD file you guys always ask for, yay..
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Post by kaspar »

YAYYY CADF FILE!!!!
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Post by timbo »

i called but no one has called back. I hope i'm able to get up with them before someone buys this kit. Maybe I'll trace it on cardboard and they can work with that.
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Post by TryingToTurbo »

adamky wrote:Nice. Finally stickied.

One thing I would like to add is that water injection is HIGHLY recommended for a M62 setup. That, or an ECU that's fully tunable, so that you can take out lots of timing.
Thanks for the input. I have modified the original post to reflect this. I have also added that the bypass valve chamber requires modification.

On a side note: I will be working on uploading pictures to help provide visual reference for each item.
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Post by TryingToTurbo »

Added DEI Heat Wrap for fuel lines under the "Items you may want" section. This is based on 'blacks13coupe' experiencing cracked fuel lines near the fuel filter after running his S/C setup for 1 year.
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Post by blacks13coupe »

Yeah i prolly shoulda posted in here, good call sir.
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Post by TryingToTurbo »

blacks13coupe wrote:Yeah i prolly shoulda posted in here, good call sir.
Thanks. I just got lucky when I was reading around and saw it on Ryan's build thread. If you find any more issues from the s/c on your car feel free to pm me about them and I will be sure to post about them.

Also, If you have any pictures from your setup that you think would be good visual aids to any of the FAQ guide lit me know. For example, I am going to post a pic of my high boost pulley installed, an overall pic of what an m62 looks like, what the bypass valve is, where to modify it, etc...
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Post by blacks13coupe »

I don't have much to contribute anymore as i went turbo. I do still like to chime in when i can though.
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Post by adamky »

TryingToTurbo wrote:Added DEI Heat Wrap for fuel lines under the "Items you may want" section. This is based on 'blacks13coupe' experiencing cracked fuel lines near the fuel filter after running his S/C setup for 1 year.
Great tip. I didn't even know this would be an issue, but it makes sense considering how hot the supercharger can get.
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Post by TryingToTurbo »

Small Updates:

Pricing Update
Meth Injection Update
Kit Comparison Update

Lmk if there is something you want added.
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Post by kaspar »

lol,as if that comparison wasn't biased to one of those kits LOL
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Post by TryingToTurbo »

kaspar wrote:lol,as if that comparison wasn't biased to one of those kits LOL
psh, I don't know why you'd think that! :lol:

I'm just saying, the KA24DER kit has literally thought of every flaw in the TK kit and accounted for it in there design. The only thing left to make this thing perfect would be a method of cooling the intake charge other than meth.
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Post by redlineslash »

How much would all this apply to a single cam 4x4 truck?
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Post by adamky »

redlineslash wrote:How much would all this apply to a single cam 4x4 truck?
Very little of it applies.You're on your own with a single cam. It's all going to have to be custom.
Wiseco/Eagle, JWT S1 cams, BC valve springs, PT5857, ID1700 injectors, SR20DET ECU w/ Nismotronic, COP conversion with LS ignition coils, etc, etc...
--> YouTube channel --> my build thread
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Post by redlineslash »

When buying a used supercharger what should I look for out of it? Any tell tale signs of a bad one? Also what vehicles came with the m62
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Post by blacks13coupe »

I would look for wear on the rotors where they touch, you should be able to see it. The snout can always be rebuilt easily. They come on frontiers and xterras.
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