aluminum block ka24de

[timtiminy]

Has anyone thought of the possibility of making a ka24de block from cast aluminum?? is it possible on a proffesional manufacturing level? i like the idea cause of the amount of weight it would save. what are the new ka blocks on the new nissan truck made of, still iron? maybe this could be a possible outsorce to china.

[CaoBoY]

why? cast iron blocks are better. 2jzgte blocks are cast iron...how often do you hear about them blowing up? just get forged pistons/rods for the block and you are good to go. you talking about losing some pounds for like 10th's of a second. its not going to help much, if any.

[SpeedMonkeyInc]

If you really want a lightweight aluminum engine just by an SR. Of course its possible to manufacture the block, but I am guessing it would be cost prohibitive.

[mrmephistopheles]

yeah the cost of R&D to produce just one cast aluminum block would be outrageous. You'd have to manufacture and sell thousands of them before you broke even. The cost/benefit ratio is horrible.

[tre]

SR's aren't that much lighter

[NemeGuero]

Why would you want to weaken the integrity of the engine?

silly silly man

[Irukandji]

SR's aren't that much lighter


Yeah they are.

[wootwoot]

Generally when you hear of engine failures, how often is it the block failing?....Unless he is wanting a 2000hp motor he is probably ok. Hell, 2000hp aluminium motors do exist.
The new motors in the Fronteir is the qr25, open deck all aluminium, that'd be a better option then trying to have your own blocks manufactured for a inferior engine.

[REDSH!FT]

More importantly, how often are blocks the ONLY thing failing...

Build/Tune your setup properly and it won't be a problem

[infinitexsound]

alluminum billet or forged crank would be ideal to me for the KA......

[timtiminy]

just an idea, cause i know dart makes the blocks for hondas...has anyone heard of the qr25 being swapped into the 240? i am interested in it.

[that180guy]

Yeah they are.

and ppl said that about H22s and K20s in honda ceebics back in the day :P

[blu808]

One of the reasons so much hp can be sustained on a kat is because its a cast iron block.

[1Via!]

I want a cast cheddar cheese KA block.

[A Spec Products]

how come 240 owners are weight conscious like nicole ritchie

i want helium filled wheels in 4 lug that are $100 each

[infinitexsound]

is she still on the yayo? id still bone her tho shes LAfabulous... lol SOCAL CHICKS THEY ALL LOOK THE SAME.....

[NemeGuero]

Yah for reals.. if 240 owners are sooooo concerned.. maybe their fat asses should just lose some weight instead.

[wootwoot]

I have actually still yet to hear of an sr putting a rod through the block but have seen several KA's that have done so in person. Not that it doesnt happen, but there isnt exactly a shortage of sr's in this area either.

[timtiminy]

i just want a more balanced car...im not too weight conscious i just like it in the right areas...as for me and loosing wieght. haha i've been trying to gain some. i weigh about 150 so no real concern there. Im sure it could be done but the cost of R&D would be much and the ka24de doesnt have the same poularity as the b18c engines that dart reproduces..plus the cost of the block alone would be a sr swap practically. so there was never a ka24de aluminum block produced by nissan for any of their vehicles..not even the latest nissan trucks? i wouldnt mind a qr25de but it seems like noone has done it and the cost would be high. i cant do a sr swap legally, and i want to stay legal so i'm trying to figure some options which are extremely scarce

[infinitexsound]

bufka......< figure that out.....

[wootwoot]

Holy hell man. You think having a custom aluminium block would be cheaper then doing a qr swap?? The qr swap could be done legally

[ThatGuy]

LS1 = lighter than a KA and COULD be made street legal. Not everyone's favorite swap, just another option if you are really bent on saving some weight in the engine department.

[Ghettokracker71]

QR swap eh? Hmm...I'd still love to see this done.Geuss you'd have to use a RWD TRUCK MOTOR lol

[infinitexsound]

QR swap eh? Hmm...I'd still love to see this done.Geuss you'd have to use a RWD TRUCK MOTOR lol
http://datsun1200.com/modules/myalbum/photos/4754.jpg
basically almost the same thing.... and a 2.5.. but what ever..... finding a rwd tranny would be a big problem unless the KA bolts up somehow... id rather go SR or...stick with the KA..or if i had the money LS1. weight isnt that much a factor....

[Ghettokracker71]

Wait wtf did the QR20DE and QR20DD come in????????? Specs/info please?

That kind of defeats the purpose of getting a qr though?

[timtiminy]

i heard the ls1 is a lighter engine but with the tranny and engine combo it actually weights a little more, and i'm in cali so it actually wont be legal cause it has to be from the same manufacture. in order for it to be legal. The QR swap seems feasable but expensive unless i got it out of a wrecking yard and they sold it for cheap. i hear that the QR from the frontier has the rwd tranny, if we were to use the altima fwd QR25de.. im sure there sould have to be some custom fabbing for all of it to work, but it would definately be different.

[timtiminy]

this is from a datsun 1200 website...suposedly its been swapped into a 1200.
QR25DE 2.5 liter Nissan/Infiniti engine. Plusses: 13% lighter than SR20DE, 20% lighter than KA24DE. 30mm shorter than SR20, It also has twin, counterrotating balance shafts so it should be a nice smooth engine. The drive-by-wire throttle body should make for easy swap (no throttle linkage to
worry about).

[CaoBoY]

qr wont be legal, because you arent using the stock header, or carb approved header. just stick with the ka24de. there's no point in trying to save weight when you run boost, it will compensate. if you do not run boost, it will still be good all motor. you keep mentioning honda motors....did you come from the honda crowd? what is your reason for swapping motors?

[Realchaos1]

QR's are fwd engines... Correct me if im wrong

[NemeGuero]

Did you read? He thinks the QR from the frontier has a RWD tranny

[infinitexsound]

yeah but the gear ratios from a truck wouldnt be ideal in a car, i assume it would be very tall..... also i believe the sentra se-r also has the qr25de setup....

NISSAN needs to bring and reproduce the S15 and send them to the states,
with the sr20det or a new engine....that is turbo.... they would make millions... the bastards just dont know it..

[blackflag_Rms13]

Excuse the lack of knowledge but what the fuck is a QR20DD?

Edit: Oh, it's just direct-injection...

[fatalfury64]

NISSAN needs to bring and reproduce the S15 and send them to the states,
with the sr20det or a new engine....that is turbo.... they would make millions... the bastards just dont know it..[/QUOTE]

That's what I'm saying. They just don't know how much money they'll make if they were to legalized and reproduce the s15.

[timtiminy]

im sure if someone had adequate funds and the ability to the s15 could be reproduced as a replica and be legalized for the US...wonder if anyone would take the risk?

[wootwoot]

240 owners are for the most part cheap fucks. Thats why they drive 240's

[ranisron]

AMEN to that...

There's nothing wrong rocking in a KA. Imagine after a fresh rebuild, NA KA is just as reliable as any hondas out there, plus, the endless torque curve.

240 owners are for the most part cheap fucks. Thats why they drive 240's

[REDSH!FT]

To everyone who said that Nissan should produce the S15 and sell it here, I ask you this.


Would you shell out $24-$28k for your S15 when it's released? (this is based on the assumption that it's done in Cheap-O form and not that great...probably NA motor. $30+ if it's a turbo platform.


Answer honestly, then re-think how many millions you expect Nissan to make when almost everyone else out there has the same answer as you.

[BigVinnie]

It also has twin, counterrotating balance shafts so it should be a nice smooth engine. The drive-by-wire throttle body should make for easy swap (no throttle linkage to
worry about).

Balanced shafts decrease HP I don't like it. It takes rotational power of the engine to use the shaft as a counter balance. Waste of energy and effeciency IMO. All the 2.4litre dodge guys take them out of there boosted engines, and for a good reason.
I would rather deal with a vibrating engine that makes 10-20 more HP without the damn shafts.
Yeah no throttle linkage, but think of how much it will now be a son of a bitch running a completly new harness and ecu that runs on that type of system.
I would rather blow my brains out...

[CaoBoY]

probably the same amount of people that would buy a 350z. most of the 240 crowd is getting older. the people look for something new....why not an s15? those olderguys would want something turbo...and cheapish. so 25-30k for a new car....people would buy it. people pay 30-40k for an evo!

[blu808]

I have actually still yet to hear of an sr putting a rod through the block but have seen several KA's that have done so in person. Not that it doesnt happen, but there isnt exactly a shortage of sr's in this area either.

Well i have done that to 6 motors in a 6 month span.


Timtiminy: Wrong. It can be legal as long as the motor is the same year or newer than the chassis. It doesnt matter who makes what.




Holy Thread Jacking/Going off topic batman.

[wootwoot]

Blu, now I cant say that anymore = )
Bad track record! Were any of these built motors or stock?
I'm definitely going to agree with Vinnie and say both of those things are BAD. The ka's bad point isnt that it was an iron block anyway. The ka's bad point is that shitty ass joke of a crank shaft it has

[Grassroots_Msport]

yeah but the gear ratios from a truck wouldnt be ideal in a car, i assume it would be very tall..... also i believe the sentra se-r also has the qr25de setup....

NISSAN needs to bring and reproduce the S15 and send them to the states,
with the sr20det or a new engine....that is turbo.... they would make millions... the bastards just dont know it..


The gear ratio in the RWD frontier (QR25DE model) is made for gas mileage as is a car, not for towing, the gears in the truck are a bit longer than those in my old SpecV (2002) ....

I had planned on doing this later on (a few years) but i plan on using AEM for engine management so I wont be getting into the technical jargon of or rigamor of wirring it up to run on a stock ecu....

I do plan on using a specV engine due to its better cams and a few other better features.....

Id rather see a VQ35DE in a S-chassis......

[ranger240]

LS1 = lighter than a KA and COULD be made street legal. Not everyone's favorite swap, just another option if you are really bent on saving some weight in the engine department.

bingo

dont like talking about it though, if it gets as popular as sr20 swaps it'll make my car less unique/cool when i finally get the $ and time to do that

[krustindumm]

if you want an idea of what a aftermarket aluminum block will cost check out Dart's honda B-series block. Also keep in mind that the Dart block requires extensive work after purchace for it to be equal to Honda OEM standards.

[krustindumm]

I looked it up anyway...
http://www.flatlanderracing.com/dartblocks_honda.html, $2k

[chmercer]

theres a 2j that tossed a rod through both sides of the block at boost logic, can see all the way through. block material means bullshit, you could blow up a 2k hp drag block making 50hp with a fucked up enough tune

[Kaji]

The QR25 is just the new KA, with a bunch of flaws from a quick glance on wikipedia. It'd be a lot of money for that swap to only get a slightly improved engine performance and less weight. Better off with ls1, ls2, ls7 even with the amount of money we're talking about.

If you really wanna save weight it'd be more effective to invest in carbon body panels or lexan windows. OR go 240-TRUCK, delete your upper rear end.

[cdlong]

i know we're well past this point but the '06 KA24s still use an iron block. there are 3 sitting outside my office right now.

people that say you can just add power to make up for weight forget that a car also has to stop and turn. a broken rod will fuck up a block no matter what it's made of. don't aluminum blocks usually have iron sleves anyway?

i can see the VQ getting very popular, it could easily be made legal, is about the same weight if not lighter and has very good power.

[Bigballin]

240 owners are for the most part cheap fucks. Thats why they drive 240's

alllllllready

[LB.Motoring]

i know we're well past this point but the '06 KA24s still use an iron block. there are 3 sitting outside my office right now.

people that say you can just add power to make up for weight forget that a car also has to stop and turn. a broken rod will fuck up a block no matter what it's made of. don't aluminum blocks usually have iron sleves anyway?

i can see the VQ getting very popular, it could easily be made legal, is about the same weight if not lighter and has very good power.


yep the VQ has been a little project around here... vq35s14

[WilloW]

240 owners are for the most part cheap fucks. Thats why they drive 240's
The cheapest bunch of fuckers that I've ever sold shit to are 240 owners, with the exception of a few.

[LB.Motoring]

^ welcome to the Land of the Low Ballers...

:keke: i hate those kids...

[drift freaq]

yep the VQ has been a little project around here... vq35s14

VQ, biggest problem is getting it EPA/Carb legal. Putting it in is not the problem. Trying to wire it to be smog legal is a major pita. Like BigVinnie said setting up throttle by wire in our chassis's, would be worse than shooting oneself in the head.
Only reason I see for putting a VQ in would be to make it a smog legal swap and that would cost a lot of money because of stuff like mentioned above.
By the time you got done spending the money to do it, you could just go buy a used 350z and call it a day.

[cdlong]

that's why i think CA laws are beyond rediculous, why would it matter whether the throttle is cable or electronic? what difference could it possibly make? i see no reason to do anything more than a tail pipe sinffer. if an SR puts out clean enough air, you're fine, who cares.