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Thread: 92mm china crank??

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Posts: 31-40 of 76
2011-09-09 02:06:01
#31
Yeah I wouldn't worry so much about the crank. That would be bad news, lol. Now figuring out things like Alex said is the tough part. If you have fabrication/welding skills, you can save money but material is still fairly expensive. Theres a lot of testing that has to be done as far as throttle body placement, runner diameter, runner length, etc. Then thing like the header as far as length, design, choke, transitions, and crap. Dyno time is not cheap at all either unless you have the connections. I'm not trying to shut down anyones dreams but I figure I put these things out there for the guys who are not too familiar what they are looking at. This is a lot more complex than most would think.

I first thought it was as easy as sleeving a block, buying some pistons/rods, crank, and headgasket. Nope. Luckily I know some of the guys who have been deep into it and ran across all of the obstacles of the 2.4 game. I for one am staying stock stroke to keep everything simple. I know the power will not be amazing but it will do its job.
2011-09-09 02:11:06
#32
Your still a goat!!!!
2011-09-09 02:49:42
#33
Wha ta gwan yuh rasclott! Go nom nom some jerk chicken! lol
2011-09-09 02:55:58
#34
i see....but that happens when you push the limits of turbo, NA DE, etc...

granted, there are more options, but as long as you follow sound principles for desogn/selection you will do ok....

its when you design/build something cause "it looks cool" or you just wing it without calculations/modeling that things go wrong or little power is produced...

but I get what youre saying....just buying a stroker crank and some bug pistons isnt gonna do the job if you dont know what youre doing
2011-09-09 02:56:49
#35
Originally Posted by nismo94tuner
Yeah I wouldn't worry so much about the crank. That would be bad news, lol. Now figuring out things like Alex said is the tough part. If you have fabrication/welding skills, you can save money but material is still fairly expensive. Theres a lot of testing that has to be done as far as throttle body placement, runner diameter, runner length, etc. Then thing like the header as far as length, design, choke, transitions, and crap. Dyno time is not cheap at all either unless you have the connections. I'm not trying to shut down anyones dreams but I figure I put these things out there for the guys who are not too familiar what they are looking at. This is a lot more complex than most would think.

I first thought it was as easy as sleeving a block, buying some pistons/rods, crank, and headgasket. Nope. Luckily I know some of the guys who have been deep into it and ran across all of the obstacles of the 2.4 game. I for one am staying stock stroke to keep everything simple. I know the power will not be amazing but it will do its job.


Bes- This is so true and many people who say they are going to do the 2.4 build either don't make the power they should or end up scrapping the project halfway through. Whether it be due to money situations or just realizing that they got in over their heads or a little of both

Hell some people (JRod) spend the time to do a stock stroke all out build that is going to be a monster, spend all the time and money and never get to install it into a car due to unexpected things that happen, which is why it is called life. You know I'm just busting balls as I'm sure that you would love to have that engine installed into a car.

As far as a stock stroke not making huge power, I think in NA form, 270whp is pretty huge power to me for a 2.3. Of course I am talking 92 bore stock stroke. It will also rev higher so since we have a shitty trans to work with being able to hold 3rd gear in the quarter is a huge advantage as far as drag racing goes. There are more variables than that but look at the times cory did from 2.3 to 2.4. Sure he made more power & torque but his e.t's stayed the same, at least for now (I know that there are so many variables that can effect that so don't take is as a knock at all cory since once it gets cooler and you have a nicely prepped track you should be running slightly better times at least). For the cost difference I would probably not bother to go 2.4 unless I had way more cash than I ever will. I still think Cory will end up with better et's with the more power & torque that he made by stroking the engine but there is still no cookie cutter formula on the 2.4ve's. There are known setups that work but most people don't share that information on here for good reason. Back to the point, even if the crank is cheap, the engine will not be and a great way to keep costs down is to keep the stock crank. I think 280+whp can be done on stock stroke with the right combination of parts, knowledge and tuning. (You could probably even bolt a log manifold with a medium sized turbo onto a stock stroke ve if you want more power.... just felt like beating a horse as that damn horse just won't die) hehehe... just busting balls
Drew
I didn't even know you were posting in this thread when I wrote that Jrod, lol.... We seem to be reading the same book and keep ending up on the same page if not the same paragraph
Last edited by totaled200ser on 2011-09-09 at 03-03-19.
2011-09-09 03:03:02
#36
dick...lol

I wanna sell my DE build so I can do a stroker turbo for a Datsun of some kind.

I enjoy building engines, sue me
2011-09-09 03:05:19
#37
^Very true. So far our best bet is the mfactory final. I want to get a custom IM made next year and try the FD to see what I can get out of my 2.0. I think mid 12's will be doable at a track like etown.

If I make 270whp I will be very happy with a 92x86 motor. I know Cory has done it but I cant base everything off of his results. I do have his old header though.

When it comes down to it, I don't care if the dyno says 220whp with a 2.3. I want to see 115+mph at the track off of the smack. With some juice off the line I think 120mph or so if capable. Just don't know how much smack a big bore motor will handle.

Ok back to the OP's topic. Sorry for going off track lol
2011-09-09 03:07:09
#38
I can tell, lol..... That engine you built is a beauty that is for sure. I know so many people like you that build engines because they like to and plan on running them in something but they only make it into their car like 30% of the time for some reason, lol. JRod- I hope you are going to be doing a 510, 240z or a roadster.... off topic but which are you planning?
2011-09-09 03:08:19
#39
sleeve it? get a bad ass Head Gasket?? some good smacking will be fine
2011-09-09 03:10:22
#40
Originally Posted by nismo94tuner
^Very true. So far our best bet is the mfactory final. I want to get a custom IM made next year and try the FD to see what I can get out of my 2.0. I think mid 12's will be doable at a track like etown.

If I make 270whp I will be very happy with a 92x86 motor. I know Cory has done it but I cant base everything off of his results. I do have his old header though.

When it comes down to it, I don't care if the dyno says 220whp with a 2.3. I want to see 115+mph at the track off of the smack. With some juice off the line I think 120mph or so if capable. Just don't know how much smack a big bore motor will handle.

Ok back to the OP's topic. Sorry for going off track lol


Bes- I think that you know it will handle a 100 shot for sure Not sure on the limits but I think that as long as it is tuned right, you could probably do a 150 wet shot or a 200 direct port if you want to push a bottom end that is that expensive, lol. I would start with a 75 and probably just do a 100wet at the most. I would run a 150 on it if it was direct port.... We are so off topic, lol
Drew
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