New turbo project - opinions needed on engine choice
03-01-2009, 07:49 PM
#21
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Oh. n/m, should have asked which 2JZ first. I was thinking you meant the almighty touched by the hand of god 2JZ-GTE. A regular 2JZ would be fine too, but I wouldnt pay you $1000 for one.
Side note, wonder if a 2JZ would fit into a Miata engine bay. Seen the V12, so I would imagine you could stuff a 2JZ into one. A 2JZ-GTE powered Miata would be a bastard.
Side note, wonder if a 2JZ would fit into a Miata engine bay. Seen the V12, so I would imagine you could stuff a 2JZ into one. A 2JZ-GTE powered Miata would be a bastard.
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03-01-2009, 07:52 PM
#22
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vq35hr. i just saw a complete drivetrain and motor selling locally for under $3k and had like 15k miles on it.
ps: with simple bolt-ons im at 280whp right now with oem cats and headers.
ps: with simple bolt-ons im at 280whp right now with oem cats and headers.
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03-01-2009, 08:57 PM
#26
My buddy just sold his rb20 swapped 240, and I know of another guy that hangs out with us that has an rb25....I must honestly say, before I was a big fan, but after seeing them in person, driving them, and seeing what they can do, its left me with a big dissapointment. both cars are nose heavy, do not have power steering, and do not make nearly enough power to really justify the money and effort for the swap. One thing I DID like was the sound: they are absolutely orgazmic sounding.
Sr is cheaper, lighter, easier, with similar results power wise. I say go that way. Cant beat it for the price.
Sr is cheaper, lighter, easier, with similar results power wise. I say go that way. Cant beat it for the price.
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03-02-2009, 08:03 PM
#28
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guys, i really appreciate the help, but the miata and duratec are really the only two motors we're considering. The former because I'm most familiar with it, the latter because its a lot lighter and makes huge gobs of torque for very cheap.
I'm thinking $500 for engine, and another 1500 for drivetrain, that's how cheap we want to be doing this. The 99+ engine may not be a possibility due to its high demand if we're going the miata route. None of the other engines you guys mention are that cheap (except the FE3 possibly).
Again, how reliable is the 300 whp miata engine and drivetrain? I see Savington just blew his engine recently.
I'm thinking $500 for engine, and another 1500 for drivetrain, that's how cheap we want to be doing this. The 99+ engine may not be a possibility due to its high demand if we're going the miata route. None of the other engines you guys mention are that cheap (except the FE3 possibly).
Again, how reliable is the 300 whp miata engine and drivetrain? I see Savington just blew his engine recently.
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03-03-2009, 10:28 AM
#34
The fail is strong in this thread.
Should have done the RX7 and a LSx engine.
KA24DE is capable of up to 350-400rwhp. Some have pushed it further but they fail quite well. The transmission and rear end, from what I know of, have seen upwards of 600rwhp and no failure.
Also forgot to mention that most of the KA's that I have known, have gone up in smoke even after the engines have been rebuilt. Seriously, the SR is cheaper to do in the long run.
The SR20, btw, can handle about the same as the KA stock, BUT last much much longer. I have a few buddies rolling around with stock SR's in the 400rwhp range. These are daily driven cars that are taken to the track.
BTW,
http://az240sx.org/forums/index.php?showtopic=28861 <---RX7 w/ LS1
http://az240sx.org/forums/index.php?showtopic=41858 <---Stock Sr w/ close to 400rwhp, running E85, but can be tuned to run 91. Running at 22psi now.
Should have done the RX7 and a LSx engine.
KA24DE is capable of up to 350-400rwhp. Some have pushed it further but they fail quite well. The transmission and rear end, from what I know of, have seen upwards of 600rwhp and no failure.
Also forgot to mention that most of the KA's that I have known, have gone up in smoke even after the engines have been rebuilt. Seriously, the SR is cheaper to do in the long run.
The SR20, btw, can handle about the same as the KA stock, BUT last much much longer. I have a few buddies rolling around with stock SR's in the 400rwhp range. These are daily driven cars that are taken to the track.
BTW,
http://az240sx.org/forums/index.php?showtopic=28861 <---RX7 w/ LS1
http://az240sx.org/forums/index.php?showtopic=41858 <---Stock Sr w/ close to 400rwhp, running E85, but can be tuned to run 91. Running at 22psi now.
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03-03-2009, 12:39 PM
#37
Obviously you don't read into anything, nor research. 10 seconds of reading/research would lead you to the conclusion of the KA24DE being from the 240sx car, which is Nissan.
The money your spending you'd find it 1) easier and 2) cheaper for the LSx engines. Then you'd get more power right off the bat. But then again, fail is strong.
BenR, There have been only of few instances of oil starvation from the KA in my area. Both were on a track with a very high banked turn. Again only two that I know of. There could be more.
But even still, I would go SR over KA just due to reliability issues.
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03-03-2009, 12:56 PM
#38
Take my advice FWIW as Joe Nobody on the internets.
Since the focus of this car will be for the track, and you're going through the trouble of a swap, might as well at least take care of the oil starvation issues the KA's seem to have on track.
I've seen enough that it isn't a coincidence. Yea sure there are several drift guys that drift a stock KA or KA-T, and there are several autocross guys that autocross the stock KA or KA-T. The g loads are not in the same direction, and are more of a spike not sustained.
I wouldn't expect to push a stock SR much past 300rwhp reliably and track it hard.
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03-03-2009, 01:28 PM
#39
Take my advice FWIW as Joe Nobody on the internets.
Since the focus of this car will be for the track, and you're going through the trouble of a swap, might as well at least take care of the oil starvation issues the KA's seem to have on track.
I've seen enough that it isn't a coincidence. Yea sure there are several drift guys that drift a stock KA or KA-T, and there are several autocross guys that autocross the stock KA or KA-T. The g loads are not in the same direction, and are more of a spike not sustained.
I wouldn't expect to push a stock SR much past 300rwhp reliably and track it hard.
Since the focus of this car will be for the track, and you're going through the trouble of a swap, might as well at least take care of the oil starvation issues the KA's seem to have on track.
I've seen enough that it isn't a coincidence. Yea sure there are several drift guys that drift a stock KA or KA-T, and there are several autocross guys that autocross the stock KA or KA-T. The g loads are not in the same direction, and are more of a spike not sustained.
I wouldn't expect to push a stock SR much past 300rwhp reliably and track it hard.
KA, again, seen only 2 go out on oil starvation issues. I'd have to see more before I could say it's a problem. Also been in the 240sx arena for some time, and that wasn't the greatest of concerns.
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03-03-2009, 01:47 PM
#40
The SR's I used to run would handle a little over 300whp before the head would start to float. Over 300whp you should at least get head studs and a good head gasket. I'd reccomend cutting some o-rings, but good luck finding someone with the tool for that in the US.
Also getting a JDM SR is a 75% type of deal, about 1 in 4 had some kind of weirdness. I saw one where the webbing for the main had been rewelded, assumingly from the factory.
Also getting a JDM SR is a 75% type of deal, about 1 in 4 had some kind of weirdness. I saw one where the webbing for the main had been rewelded, assumingly from the factory.
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