- Joined
- 19 February 2008
- Messages
- 1,532
We looked at the motor swaps of the 2 greatest motors of all time...IMO
The 2JZ and the RB25 wont fit.... unless you go after the amount of work ls7nsx is...
Regards
Motor swaps on an NSX
- Thread starter vh_supra26
- Start date
We looked at the motor swaps of the 2 greatest motors of all time...IMO
The 2JZ and the RB25 wont fit.... unless you go after the amount of work ls7nsx is...
Regards
- Joined
- 19 February 2008
- Messages
- 1,532
SR20DET swaps are done to replace the steel block but also because the motor is built for a turbo sylvia... aka... low comp pistons.
The motors get pulled after 30k there so they are everywhere here in the states....
It would be a terrible NSX motor... redline would fall by as ton
Regards
Ross, Have you looked in to a Northstar V8 setup?
- Joined
- 19 February 2008
- Messages
- 1,532
I have to say I no nothing about it... I do know this though....
Displacement is easier than outside the box....
The difference between v-tec and I v-tec with a kpro is as big as ms dos and windows... IMO of coarse
Regards
Last edited:
- Joined
- 8 August 2007
- Messages
- 554
Its just when and if I did get a NSX, I didn't want to pay and arm and a leg for motor parts.
But whats a K series? And does it fit?
But whats a K series? And does it fit?
Last edited:
k series is a honda 4 cylinder
same as b series or d series
same as b series or d series
- Joined
- 19 February 2008
- Messages
- 1,532
Check out the build post for an explination...
http://www.nsxprime.com/forums/showthread.php?t=134599
and here is the motor running in an NSX
<object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/JoD0tNkan0w&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/JoD0tNkan0w&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object>
The k series motor (k20 and k24) has been placed in every single Honda Car made since 2002....Including the CRV and the RSX and TSX
there are many types of k20's... but the i-vtec head on a k20a2, k20z1, and k20z3 are producing over 1100 horsepower on drag cars and rev to 11k rpm on road track race cars
Regards
Well with rocker arm stoppers installed in the SR20DET it can live at 8K rpm all day long. Stock they rev to 7.5K so your not losing too much rev's. If you were to install a K24 frankenstien engine it will also sacrifice rev's vs a K20 engine.
- Joined
- 19 February 2008
- Messages
- 1,532
I guess you have a point... I have a set of Tomie Cams in my s14 with an SR20 in it... I shift at 6700 because the cams produce more torque than hp 400hp with 450 trq
It makes the car fun as hell to drive... plus the 335's on the back are stretched on 13" wide rims :wink:
Regards
Like I said I have been thinking of a K in an NSX for a long time and if I ever did build a track rat out of an NSX shell I would almost definitely swap in a bored / stroked K24 with a TSX head on it. Most likely I would throw a TVS blower on it instead of a turbo mainly because I love the predictability of my current blower on my B - CRX. The K is the new B Honda engine and everyone knows the legacy the B left behind. There will be cheap parts and custom Frankenstein swaps with K parts for a very long time. As previous stated the i-VTEC system in the K series is amazing as is the block strength, head flow rates, and balance. That with the fact that you can get a 2.7 liter out of a stroked K24 makes it just shy of the 3.0 NSX engine anyway. My B engine in my CRX is built to rev to 10K but I have the redline set at 8700 because the blower can't handle RPMs above 18700RPM. The right setup on a K with a TVS blower could easily sustain 11K RPM (maybe not on stroked 2.7 though)....... now that would be crazy.
- Joined
- 19 February 2008
- Messages
- 1,532
Thanks man... you should see it now... we cut the front frame rails off and rebuilt them to actually go around a high quaility a-t-a
I'll have one of my guys drive it to NSXPO...
Regards
- Joined
- 19 February 2008
- Messages
- 1,532
You may be the first to truely understand what we did...
We completely agree.... There are newer options for a sc set up... you should call down to the shop...
NSX parts are rare... so are coversion parts... fabrication time is insane on this... when taking the next step costs are so high the whole time...you should check the thread....
http://www.nsxprime.com/forums/showthread.php?t=134599
Regards
Last edited:
- Joined
- 8 August 2007
- Messages
- 554
Why do people put a smaller motor into the NSX? 
- Joined
- 19 February 2008
- Messages
- 1,532
Why do people put a smaller motor into the NSX?
LOL... its not the smaller motor... it's the motor itself... which happens to be smaller.... and if the k20 came in an inline 6... we would have used it.
I-VTEC is the reason man... strickly technology based swap... with total weight, performance, room for the turbo (non-remote like all other nsx turbos), performance, avaliablity of replacemnt, pricing, performance, tuning software is the best we have seen other than motec, performance,
my favorite part (other than performance...lol) is that all Honda cars with k20 use a k20 tranny... we will have over 10 gears to choose from at every gear (other than 6th) when we need to adjust our powerband.
Actually... it would take a novel to explain everything... it makes tons of sense.
Regards
- Joined
- 8 August 2007
- Messages
- 554
Does it cost alot to put a K20 in? Sorry for all the questions.
- Joined
- 19 February 2008
- Messages
- 1,532
ball park of the retail value of what you get to sell off your nsx is 13k
Cost of a k20 turbo swap is around 20k
currently 7k out of pocket... and thats the installed price.
Were still working on it though...
Stay Tuned
You've got my attention :tongue:
- Joined
- 19 February 2008
- Messages
- 1,532
It's taken 3 years of fabrication... we have had tons interest worldwide... it will be a good swap at a good price
We have also had pm's about buying mounts, axles, and wiring harness's only... I want people to understand that doing this a one off and doing this for production are two different beasts.
We can not sell parts of the swap individualy... but you will be more than welcome to ship a motor/turbo/ect to us for a credit off the cost.
Regards
Very awesome idea but whenever I see a NorthStar I can't stop thinking of blown head gaskets 
My dad swapped a Ford 5.0 V8 into his Miata. He drives it as his daily driver. Fast is an understatement. 
why would you go with a bad engine into a car that can have a better built rotary engine in it. Take the money from the swap and build the engine you have. If you want info on a great shop let me know. They are located in baltimore. Great work and know their nissans and mazdas as well as supras.
Very awesome idea but whenever I see a NorthStar I can't stop thinking of blown head gaskets
Jadcar. i like your crx. Would you like to sell it? off topic i know.
Sorry buddy..... I'm the original owner of that CRX and I have a huge emotional attachment to it. I would sell five NSXs before I sold my CRX, plus my 4 year old son already knows it's gonna be his one day
