supercharging a 240?
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Just another 240
- Posts: 902
- Joined: Mon Aug 19, 2002 3:52 pm
supercharging a 240?
i hear alot about people putting turbo on their 240s. Dont' really hear about anything about supercharging. Can we supercharge a 240 and would it run well? is there any company out there that makes supercharger for 240?
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Daunttless
- Posts: 3890
- Joined: Sun May 12, 2002 7:20 am
You can supercharge them as you can supercharge any vehicle with enough room, no one has developed a kit for it so setup would be a nightmare as no one would help you, and to my knowledge no one has a supercharged 240, but it wouldn't surprise me if there were 1 or 2 out there who don't come online.
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Just another 240
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Daunttless
- Posts: 3890
- Joined: Sun May 12, 2002 7:20 am
I had a 1994 240sx with a supercharger operational for over a year... 15 months to be exact... running 6psi without any problems. It is a Powerdyne BD11, custom fit with welded mounts and a 6psi pulley.I'm on my way in 12 hours to go gets me another one.(240 that is)I experienced no problems whatsoever, and the power is amazing....
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240dreamer
- Posts: 192
- Joined: Thu Aug 08, 2002 4:51 pm
- Car: 95 240sx SE
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Indeed it is rare, but there have been a few over the years with supercharging.
I intend to post all the details that I can put together on 240sx.org and other sites when I re-install it in the spring.
My last one, a white 1994 had it's frame bent only a week before it was to go into storage. Crappy.
Over the last 10 years I have owned 2 s12's and 3 s13's.
It is a terrible job to do, taking about a week to do when I first tried it. And trial and error was the rule of the day. Now, it should only take about 4 or 5 hours to do.
The car has never been dynoe'd, as the closest one to me is hours away, and a hundred bucks an hour to do.However, my most conservative guesstimate would be in the order of 225-235 hp. as it easily dusts 300zx's.
I intend to post all the details that I can put together on 240sx.org and other sites when I re-install it in the spring.
My last one, a white 1994 had it's frame bent only a week before it was to go into storage. Crappy.
Over the last 10 years I have owned 2 s12's and 3 s13's.
It is a terrible job to do, taking about a week to do when I first tried it. And trial and error was the rule of the day. Now, it should only take about 4 or 5 hours to do.
The car has never been dynoe'd, as the closest one to me is hours away, and a hundred bucks an hour to do.However, my most conservative guesstimate would be in the order of 225-235 hp. as it easily dusts 300zx's.
As for the cost, I weighed it against turbo and found it far better on a reliability and cost standpoint. The blower unit ran $1300, extra pulleys and piping and mounting ran a further $700-900. All in all I'd say it cost me about $2500 US... plus a TON of aggravation.
However, the unit is self contained and pulley driven....
so I didn't need oil lines, intercooler, turbo timer, boost controller, ECU upgrade, new header, BOV, larger oil pan, new exhaust...ect...ect...ect....so I figured after all is said and done, I came out of it with a few grand in my pocket, and I don't need a auto surgeon to work on the car like what I would need if I had a CA, RB, or SR under the hood.
However, the unit is self contained and pulley driven....
so I didn't need oil lines, intercooler, turbo timer, boost controller, ECU upgrade, new header, BOV, larger oil pan, new exhaust...ect...ect...ect....so I figured after all is said and done, I came out of it with a few grand in my pocket, and I don't need a auto surgeon to work on the car like what I would need if I had a CA, RB, or SR under the hood.
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SilviaLuvr
- Posts: 1295
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- Car: shopping for parts going to school to become a massage therapist
just do a general search for superchargers over the net for powerdyne. I think the main website will have a list of local suppliers, I paid $2000 CAD for my blower unit. whatever prices are listed there, ignore them.
As for what model of the 240 engine I have, It is the KA24de. The Ka24e in my opinion should be turboe'd , the design and layout of the engine is too perfect for anything else.
the 240sx Ka24DE needs a 90 degree scroll because of clearance issues for the intake and avoiding the other accessories.
Keep in mind that the most difficult process was making room for the blower unit whilst finding space to hook it up to the AC pulley. (you lose AC when using a supercharger, which wasn't a big deal for my first project, a 1992 fastback without AC.
The bracket was custom made, If any way possible, before the thing goes back in, I'll do my darndest to copy it so that it's template can be used in the future for guys like youse.
-Jarret
As for what model of the 240 engine I have, It is the KA24de. The Ka24e in my opinion should be turboe'd , the design and layout of the engine is too perfect for anything else.
the 240sx Ka24DE needs a 90 degree scroll because of clearance issues for the intake and avoiding the other accessories.
Keep in mind that the most difficult process was making room for the blower unit whilst finding space to hook it up to the AC pulley. (you lose AC when using a supercharger, which wasn't a big deal for my first project, a 1992 fastback without AC.
The bracket was custom made, If any way possible, before the thing goes back in, I'll do my darndest to copy it so that it's template can be used in the future for guys like youse.
-Jarret
i read that you did not have to upgrade your ecu for this project. could you, or someone else, explain why. my first thought was that all the extra air going in would make the mixture(a/f) lean, more so than what the ecu is used to seeing, and therefore causing problems. i know that the leaner you run, the more power can be made. but if you run too lean, stuff starts to melt. tia for replies and info on this. let us know how your next install goes when the snow melts.
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RPS13Sideways
- Posts: 37
- Joined: Mon Dec 16, 2002 3:53 pm
- Car: 1989 Sileighty w/ '97 RPS13 Blacktop
There is a company here in Southern CA, that makes superchargers with 12psi pulley kits, for the KA I know of.
http://www.area51fab.com/
I am not sure about the SR20s however, you guys might want to call them, take care and hope this helps.
http://www.area51fab.com/
I am not sure about the SR20s however, you guys might want to call them, take care and hope this helps.
i read that you did not have to upgrade your ecu for this project. could you, or someone else, explain why. my first thought was that all the extra air going in would make the mixture(a/f) lean, more so than what the ecu is used to seeing, and therefore causing problems. i know that the leaner you run, the more power can be made. but if you run too lean, stuff starts to melt. tia for replies and info on this. let us know how your next install goes when the snow melts.
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C-Kwik
- Moderator
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- Joined: Thu Aug 01, 2002 9:28 pm
- Car: 2013 Chevy Volt, 1991 Honda CRX DX
Jarret wrote:As for the cost, I weighed it against turbo and found it far better on a reliability and cost standpoint. The blower unit ran $1300, extra pulleys and piping and mounting ran a further $700-900. All in all I'd say it cost me about $2500 US... plus a TON of aggravation.
However, the unit is self contained and pulley driven....
so I didn't need oil lines, intercooler, turbo timer, boost controller, ECU upgrade, new header, BOV, larger oil pan, new exhaust...ect...ect...ect....so I figured after all is said and done, I came out of it with a few grand in my pocket, and I don't need a auto surgeon to work on the car like what I would need if I had a CA, RB, or SR under the hood.
A Revhard Manifold runs about 5-600 MSRP I believe. A standard T04B runs around $700 MSRP. The cost of piping and miscellaneous hardware should be about the same 7-900 you spent. You only need to get a wastegate. A BOV is recommended. Actually, a BOV would be a good idea for a Centrifugal supercharger as well. You do not need to have a boost controller or an oil pan for a turbo. You do need to make sure you have adequate fuel for both systems. I would recommend an intercooler for both as well. 6 psi is awfully high for stock injectors. I would hope you at least had a FMU.
jmac, yes, a leaner mixture will make more power. But too much and you get detonation. Detonation breaks parts and can also cause the melting. You will get detonation before the combustion temp gets high enough to melt stuff.
But yes, you still can find bargains with turbocharging, that I don't deny!
It's just the accessories and add-ons that ding you to death.
As for my Boosted 240, I found a FMU superfluous for my app. and the stock fuel pump/ injectors were trouble free with what I had.
Perhaps I'll go to 150-180 lph walboro pump and SR injectors.... in good time.
-Jarret
It's just the accessories and add-ons that ding you to death.
As for my Boosted 240, I found a FMU superfluous for my app. and the stock fuel pump/ injectors were trouble free with what I had.
Perhaps I'll go to 150-180 lph walboro pump and SR injectors.... in good time.
-Jarret
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Julio Bro!
- Posts: 290
- Joined: Tue Jul 30, 2002 11:01 am
- Car: 1993 240SX SE, manual transmission, Stillen intake & strut bar, Magnaflow cat + custom cat-back, NISMO sus
Hey people, http://www.kennebell.net works with the twin-screw type supercharger and have a nice kit for the Miata. It's smaller and lighter than an Eaton, so it should be easier to adapt for the 240SX. I wrote them but the answer was "nothing available or in the works for your application", which is kind of strange when a usable kit is available.
I think that what they need to know is that there are people willing to buy it, so send your messages, maybe the quantity will convince them to, at least, test one. Alright, go ahead and ask them to at: [email protected]
I think that what they need to know is that there are people willing to buy it, so send your messages, maybe the quantity will convince them to, at least, test one. Alright, go ahead and ask them to at: [email protected]
I have heard of people using the roots blower from the GM 3800. The problem as I understand it is that it is a Roots style blower which will have the pulley up front and the intake in back, and as such if I plan to continue with an MAFS style metering system then I will have to have a custom intake that routes around the motor. But what about this... I have heard that with the APEXi SAFC, you can convert to a MAP style metering system, as it will intercept the message to the computer and fuel could be tuned that way. (First, I would like to know if that is true), secondly, at this point could I not take a standard civic style single elbow intake and run it straight down toward the transmission to use as the intake? Why or why not? Obvoiusly, a custom pulley will need to be fabricated, and new injectors used. But I think that a high 200hp could be attained this way. I have just wrecked my 240 and will be buying a chassis from another in the near future, and I will be trying this setup if it seems feasible. This reminds me, I have an LSD for sale. It has 16K mi. on it, and I have never used it, asking $250 plus shipping, but make offer. Please give me any insight you can.
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deftdrummer
- Posts: 487
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- Car: cars, drums, music, technology
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Non turbo Z'sJarret wrote:Indeed it is rare, but there have been a few over the years with supercharging.
I intend to post all the details that I can put together on 240sx.org and other sites when I re-install it in the spring.
My last one, a white 1994 had it's frame bent only a week before it was to go into storage. Crappy.
Over the last 10 years I have owned 2 s12's and 3 s13's.
It is a terrible job to do, taking about a week to do when I first tried it. And trial and error was the rule of the day. Now, it should only take about 4 or 5 hours to do.
The car has never been dynoe'd, as the closest one to me is hours away, and a hundred bucks an hour to do.However, my most conservative guesstimate would be in the order of 225-235 hp. as it easily dusts 300zx's.
I am looking into the possibility of supercharging as well. Pro Charger makes a universal kit with the blower, a bracket, piping, and an intercooler. Price is around $2500 I think. Pro Charger makes good stuff, I put a kit on my friend's 98 mustang. I also like the fact that it is self contained.....no oil lines!! The biggest problem I see is just where to mount it and what pulley to use.