SR24DET?

[SoCal-S13]

im about to buy an SR20 which has been bored and stroked from 2.0L to a 2.4L. technically making it an SR24DET. has anyone had experience with this at all? and im using an S15 6spd trans as well. So my S13 will have an SR24DET 6spd trans. Unique and boneriffic imo. feedback please

[simmode1]

Are you sure it hasn't been stroked out to 2.2L or 2.3L? Maybe thats a typo. You're probably talking about either the Jun or Brian Crower stroker kits...

[motoman399]

wanna be ka24det much?

[SoCal-S13]

Are you sure it hasn't been stroked out to 2.2L or 2.3L? Maybe thats a typo. You're probably talking about either the Jun or Brian Crower stroker kits...

ive spoken to him personally and he is a family friend. he says its all custom done. 2.4L. ive never seen this done before so i was just curious if any other members have come across this engine mod before. he is asking $2500 for the motor. the block is brand new. like i said before it has 0 miles. and his friend is the one that has the S15 6spd for $500. The trans is sort of a come up. My dads friend imported it for $500 hoping to turn a profit and its been sitting for a while now. I told him id pay what he has into it so he could break even and he agreed.

Im tryin to do unique upgrades to my car. i was going to use an S15 Silvia SR20 and 6 spd. I know its been done before, but def not as common as the standard red/black tops. Ive never seen anyone with a 2.4L SR and the motor is right down the street so im kinda leanin towards this instead. And the fact that it has 0 miles is worth the extra few hundo.

[nissans13240sx]

Are you sure it hasn't been stroked out to 2.2L or 2.3L? Maybe thats a typo. You're probably talking about either the Jun or Brian Crower stroker kits...

I believe JWT offers a 2.4 stroker kit. And if thats the case 2500 bucks is a great price for the motor.

[Tweak]

i havent had any experience with stroke and bored sr's but im just gonna say right now but 2.4L's on a motor that was born and bred a 2.0L doesnt sound like a good idea, if you want that size displacement save the cash, and boost your KA, its your best bang for your buck cause im assuming you already own a KA plus stock its a 2.4L (there you go theres your displacement) plus those 6 spd trans dont really take the cake on being the strongest thing nissans ever built so you might want to consider a 5 speed trans if your going SR

[Khost26]

Ive heard alot of people don't like the 6 speeds. And isn't 4 over alot to bore? It is a good price for the motor thought.

[OutToWinPAHC]

Price seems too low.... Built bottom end, stroker motor.

Oh and stoking a motor has nothing to do with boring. It has to do with the stroke (how far the connecting rod travels top to bottom). But to obtain 2.4 my guess is a combination of bore and stroke increase.

Find out - Is it sleeved, what is the bore size, how long is the stoke, what are the bearing clearences, whats its redline at (gonna be much lower now due to the stroke).

As for the 6 speed, don't listen to what people thing.... they all say its 6 gears packed into the 5 speed case, they break, they cant hold more then 400hp.... but nobody knows anyone other then broadfield with one and his is not broken.

[brn-n-jpn]

there is a such thing as the the 2.4L motor... mazworx does that setup and depending on the headwork your redline will be around 7200rpm. As for the 6spd trans if you are going to for high HP, drifting, or autox you will need to rebuild the internals with the nismo gearset. It is easier and cheaper just to use a z32 trans. The 6spd trans is good for the highway.

[amakadius]

just go to a bigger motor

[Metal Angel]

As for the 6 speed, don't listen to what people thing.... they all say its 6 gears packed into the 5 speed case, they break, they cant hold more then 400hp.... but nobody knows anyone other then broadfield with one and his is not broken.

I know two people with 6speed s15 SRs. One is in an s13 pushing 350hp and going strong. The other is in an s14.5 and barely making 200hp and the trans is broken. They are both 100% abused drift cars. I think its just the luck of the draw... and if I am not mistaken, Broadfield only daily drives his (if that) so even though he has 400hp that s***'s not gonna break.

[TheRealNap0le0n]

so much hear-say..


the 6 speed doesnt mean it's stronger weaker or better for daily driving.

it all has to do with transmission design and the gear ratios... IE if its super close ration and 6th gear is 1:1 its not great for daily driving. or if its like the T56 with 4th being 1:1 and 5th and 6th being .63: and .5:1 respectively its awesome for daily driving

[PyR0NiAk]

there is a such thing as the the 2.4L motor... mazworx does that setup and depending on the headwork your redline will be around 7200rpm.

If you're talking about the 1300hp one, it's a 2.3.

[Hijacker]

so much hear-say..


the 6 speed doesnt mean it's stronger weaker or better for daily driving.

it all has to do with transmission design and the gear ratios... IE if its super close ration and 6th gear is 1:1 its not great for daily driving. or if its like the T56 with 4th being 1:1 and 5th and 6th being .63: and .5:1 respectively its awesome for daily driving

1st gear ratio 3.626
2nd gear ratio 2.200
3rd gear ratio 1.541
4th gear ratio 1.213
5th gear ratio 1.000
6th gear ratio 0.767

[240_SeX]

Mazworx has a roumored prototype SR25
http://www.mazworx.com/home/index.cfm?event=engineLab

The only problem with a displacement that high is the stroke is so long the piston speed becomes a problem, limiting your rev limit which in turn limits your turbo choice or gives you a very short powerband.

Lastly, if you want to use that motor to even a little of its potential, the 6 speed will not handle it. As Pyro said Mazworx's 2.3 is making 1300 horsepower. I wouldn't trust the 6 speed with 400.

[idahotuner]

i amalmost 100% positive it is not a 2.4 liter. reason being the price. juttobuildmymotor to a 2.2L with a 90mm bore, was close to 2000 before assembly. it would cost just 4500-5000 dollars in parts. before the actually assembly. so for 2500 dollars it is a stock motor. maybea stock rebuild. to do a 2.4 lter you needa 90mm bore anda 91mm stroke. that involeves a new crank and resleeving.

[KYDrift]

yeap.. 90mm sleeves 91mm stroke.

[DuckyD]

yeap.. 90mm sleeves 91mm stroke.

That setup makes it a 2.3L motor.
Well technically 2315cc.

Looks like JWT used to have a 2.4L kit on the market, 90mm bore with a 94mm stroke.
http://jimwolftechnology.com/customer_p ... PartID=380
The fact that it is no longer on the market makes me think that there are inherent problems with going this large.

I would probably steer clear. "he says its all custom done. 2.4L"
The price is "too good to be true" if the motor was professsionally built and will likely present many problems if you try to drive it on the street.

[SoCal-S13]

im leanin towards a rebuilt KA24DE. got an HKS deal in the works. T3/T4. booyah. torque monster.

[PyR0NiAk]

im leanin towards a rebuilt KA24DE. got an HKS deal in the works. T3/T4. booyah. torque monster.

I'll believe it when I see a dyno sheet..

[idahotuner]

a bored out ka24de would be sick.like a 2.6 liter running a gt35 or sc60-1

[PyR0NiAk]

a bored out ka24de would be sick.like a 2.6 liter running a gt35 or sc60-1

Agreed, but something about this kid tells me he won't do it... Hopefully, I'm wrong and just being a bad judge, but we'll see.

[SoCal-S13]

a bored out ka24de would be sick.like a 2.6 liter running a gt35 or sc60-1

Agreed, but something about this kid tells me he won't do it... Hopefully, I'm wrong and just being a bad judge, but we'll see.

a bored out KA would indeed be sweet. I don't really know ne who could do that tho.

[idahotuner]

any machine shop can over bore a ka24