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+--- Thread: Stroker Poll -- Tell Rex how to spend his money (/showthread.php?tid=3464)
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Stroker Poll -- Tell Rex how to spend his money - CaptainHenreh - 01-09-2006
Ok, so you all know I've got my DSM right over there. The DSM has got a 4G63 (2.0 liters) which had a larger cousin, the 4G64, at 2.4 liters. It just so happens that a 4G64 crankshaft, with 12mm more stroke, will fit nicely inside a 4G63. This will increase the stroke to 100mm (from 88) and increase displacement from
1997cc
to
2270cc (assuming one were to keep the bore stock. The stock rods could be used, along with stock block and head, with minimal clearancing needing to be done on the block itself. (Nothing, for instance, I dont' feel confident doing myself.)
Now it just so happens that I have found a known, good, 4G64 crank for 125 dollars. It's a good (not great, but good) price for an increasingly rare part. The plan, basically, would be to buy the crank, and, over time, buy a parts block to, over time, rebuild a block utilizing this crank, then having a fresh block to throw into the car, eventually. The car is in good shape, no rust at all, and, well, I like it alot. I think I'll keep it.
So! The question here is whether I should go ahead (next paycheck) and buy this crank with the idea that, over time, I'll build a 2.3 stroker.
Benefits of a stroker:
- More displacement. More cubes equals more horsepower.
- More low end torque. Additional leverage on the crank is a bit more efficient, on a physics level.
- More air flow (from the cubes) means a bigger turbo with less lag.
Detractions:
- More expense, both through the crank and the custom (well, aftermarket) pistons.
- Increased pressure on main bearings, resulting in increased wear. (Although, what this really means is it won't last 200,000 miles.)
- Lower redline.
Now, keep in mind (Julie) that this is not a discussion of whether or not Rex should start the build of a 2.3 stroker motor to throw in his not-even-sorted-out-yet DSM. Such discussion is a descent into madness, and is beyond the scope of the question, which is: Should Rex spend 125 dollars of his own money that he's saved that will not make us go hungry to buy this crank and start (over time) rebuilding a block with this stroker motor in mind. It also isn't (RJ) a place to say "ADD BOOST!" because really, that goes without saying, now doesn't it. For those "ADD BOOST!" people, remember that a bigger motor spins a bigger turbo more better.
- Andy - 01-09-2006
You're retarded but who am I to not support it.
- ViPER1313 - 01-10-2006
I fail to see the reason to build a stroker motor when you could get more power elsewhere for cheaper. Is the current motor on its way out?
- ScottyB - 01-10-2006
what is the rod/stroke ratio of the stroker...im curious.
i want with all my heart to tell your demented ass to go and buy the new crank tommorow and make a crazy engine, because lets face it - you're Rex and you find ways to make cars as mental as you are :lol:
honestly though, i'd say just do some head work and get rid of your bird-fart turbo that's on there now, while enjoying not having to pull your motor and keeping your nice, high redline and nice, high milage rebuild schedule.
then again, you may have to do some work to that clutch of yours. and if the motor is out you might as well....
- Mike - 01-10-2006
ViPER1313 Wrote:I fail to see the reason to build a stroker motor when you could get more power elsewhere for cheaper. Is the current motor on its way out?
it sounds pretty cheap and will give him even more "cheap power" when he ups the boost. in this case i think bigger is always better.
- JustinG - 01-10-2006
go for it, although there are cheaper ways of making power, it will be a god awful beast upon completion.
- Jeff - 01-10-2006
ehh...its a turbo car. Bigger boost...better clutch... I say you build an all-motor 500hp metro...I'm sure you could find a way
- Feersty - 01-10-2006
[arnoldvoice]Doo it![/arnoldvoice]
- CaptainHenreh - 01-10-2006
Well, my clutch probably has less than 5000 miles on it. It's the engagement that's the problem.
The sad truth is that I really don't have 125 (Probably 150 after shipping) to spend on a part I wouldn't use for six months or more. The idea here was to get a crank, find a six bolt block, and start a full rebuild to be installed when my current motor lets go. That way, since I'd already have a block being rebuilt, it's a pretty small thing to just go ahead and put the stroker crank in there, and since I'd almost be guaranteed to be going a rebuild overbore, I'd probably need new pistons anyway. 500 dollar stroker pistons versus 300 dollar stockers ir pretty insignificant.
The only problem is that right now I really need to concentrate on getting this dumb clutch and shifter taken care of, and that's alot of 20 bucks here, 30 bucks there shit.
Scotty, the rods are 150mm. Stock strokes are 88mm (for the 4G63) and 100mm (for the stroker). That makes the stock ratio ~1.70, and the stroker 1.50.
- REED - 01-10-2006
Feersty Wrote:[arnoldvoice]Doo it![/arnoldvoice]
i think you mean
[benstillervoice]Do it, Do it, Do it![/benstillervoice]
- H22coupe - 01-10-2006
if you have plans to build a the block later but are not sure wheather you want to buy the crank now....just buy it in six months when you are actually ready. Are you going to be keeping the stock rods(which i am pretty sure good to ~500whp)? what about pistons? it sounds like you should just wait until you have the funds. BTW....how rare are the 4g64 cranks?
- D_Eclipse9916 - 01-10-2006
DO IT!!! And if you ever decide your not into dsms anymore, you can give me the engine...muhahah!
I too want to build up an engine. I will probably do it next year as there really insnt time or space in my dorm room to just sit there while I slowly build it up.
- CaptainHenreh - 01-10-2006
H22coupe Wrote:BTW....how rare are the 4g64 cranks?
As a general rule, any six bolt stuff is rare enough to want to buy when you come across it.
This is really going to depend on how much my books are going to cost. I forgot that I was getting a little money back from school, so I might ask the guy if he would mind sitting on it for awhile.
- Andy - 01-10-2006
Here's a question. How much power are you looking for and what are you going to do with it? I can't imagined you'd want to sink a bunch of dough for a 400whp hpde slut. Aren't stock 4g63 bottom ends capable of that? Why not sink that money into suspension and brake mods? I thought you wanted to get this thing for track use?
- HAULN-SS - 01-10-2006
Theres no replacement for displacement..go for it
- ScottyB - 01-10-2006
CaptainHenreh Wrote:As a general rule, any six bolt stuff is rare enough to want to buy when you come across it.
if that's the case, then are you pretty confident you'll find a decent 6 bolt block? sounds like it could be a long, pain in the ass wait.
- JohnC - 01-10-2006
Frankly, it sounds like you could just as easily sell the crank in a few months if you change your mind. I say buy it now.
- CaptainHenreh - 01-12-2006
Well, there's good news and bad news.
The good news is I went to E.T. Motorsports last night, and it looks like we're gonna get to figure out what a stroker 4G63 looks like.
The bad news is my thrust bearing is, at minimum, bad which means I'ma need to pull the pan and at least swap bearings. So, depending on the condition of my crank when I get it out (whether or not my bearings have been chewed through) I might just go ahead and take her down for a few months and do the stroker thing.
- Andy - 01-12-2006
Sorry to hear the bad news.
- CaptainHenreh - 01-12-2006
Andy Wrote:Sorry to hear the bad news.
When you spend 950 bucks on a DSM, you do so with this possibility firmly set in your mind or you don't do it. I am completely prepared (mentally, anyway) to put alot of blood, sweat, and tears into this car. The body is in great shape, no rust or major dents or anything goofy.
This is not a broken car...this is an opportunity!