Disadvantages of stroker motor compared to 2.0

[fastcarfreak]

So here are my questions,
What are the disadvantages of having a stroker motor compared to having a built 2.0 liter?
What stroker kit would you recommend for the most power capabilities?
I plan to build street driven drag racing car and I am wondering which motor is better for this task? Turbo lag is not an issue with me.
I was planning on building a motor built for a big turbo (say 20g) and nitrous, can this motor handle a decent shot of nitrous (say 75-100 shot) and a big turbo?
What kind of boost can this motor handle?

thanks in advance

 

[EVIL X]

Its not really "how much boost" or "how big of shot" is it more like, what kind of internals you are wanting and ring gaps and such. the most important thing out of all is tuning. You can kill a bullet proof motor if you dont know what your doing tuning wise. the advantage of a stroker is displacement obviously....and with that come faster spool of bigger turbos, you dont have to wrap out the motor in the higher rpm's to spool a large turbo, which in return your shift points will be a little easier on your trans. A strokers is also going to make alot more torque in the lower end which imo is great...

i think if your going to do a rebuild and you can afford to build a stroker, why not??

 

[fastcarfreak]

Thanks for the info. I know all about how tuning affects a cars performance, but i also know that things have their limits. I own an turbo rx7 and without the proper tuning, bye bye motor, no matter how much or how little power you plan to make.

Another question i have is, which stroker kit is the best for my application. which one has the strongest parts and can handle the most power. I was looking at the Jackson racing stage II stroker. It says that it can handle 850 whp, While im not looking for nearly that much, is this a well put together kit. What do people tend to rev these motors to?

 

[huafist]

Car Shop Inc has a stroker kit that includes eagle or crower rods and wiseco pistons. I've heard good things about this kit.

 

[herostar]

I got a 2.4L crank online, eagle rods, and JE pistons. This should be good to 650hp, which I will probably never reach. I love the stroker. My 60-1 spools 20psi by 3500 rpm, very streetable IMO. The lag is almost not noticable though, because of the torque this engine makes. It's soooo smooth. If you can, go stroker.

 

[fastcarfreak]

from what im hearing, it sounds like stroker is definately the way to go. But are there any disadvantages to a stroker setup, besides the obvious, Cost?

 

[herostar]

from what im hearing, it sounds like stroker is definately the way to go. But are there any disadvantages to a stroker setup, besides the obvious, Cost?

It's harder to find a good race...

 

[Mitchel63]

I'm in the market to build an engine soon and am thinking about sticking with the ole 2 liter. Reason being my car is mainly for drag racing.....with DSMlink's features drag racing spool is not really much of an issue at all. That extra torque scares me to be honest.....seems like an invitation for broken driveline parts. I've already heard several stories of strokers just shredding the teeth off of gears! With a turbo doing most of the work, how much time are you really gonna pick up with an extra .3 liters of displacement?

Mitch

 

[boostedinaz]

Another thing to look at is longevity. When you stroke a motor you are going to increase the piston speed. This will wear the cylinder walls faster then non stroker application. With the addition of forged pistons, the only way to geta stroker to work, you will start to burn oil faster and may have problems with blow by. Another place to look would be at the angles of the rods. When you stroke it the angles will be putting greater force on the bearings, pitons, rods, and crank.

Now all this is going to depend on the amount of stroke, what parts you are using, the machine shop you use, and how you drive it. I am not saying that this motor will die after 5K, but the life will be shortened.

 

[HighPSI TSi Guy]

well the flywheel has a tendency to come loose on the strokers..

 

[fastcarfreak]

thanks for all the help guys. I guess i will just have to wait to see what I decide to do when the time comes up. I really like the idea of a stroker motor, but i still dont know if its worth the cost. I will have to figure prices when that time comes.

 

[Mirage2LTurbo]

well the flywheel has a tendency to come loose on the strokers..

Where do you gather that from?

A local friend of mine has a 2.3 stroker, 11,000 miles later he's rebuilding it. All the bearings are shot. Given he does reem the living piss out of it, I guess between piston speed and the terrible r/s ratio, they aren't good for longevity.

I'd build a 2.4 if I was going to do anything. I'm happy with my 2.0 though, good spool and happy revving

 

[DSMJim]

I'm sticking with a 2.0L and building that. I don't want more torque down low that breaks driveline parts, more torque can be achieived at the track with nitrous if I want. My plans are only to rev to 8000rpm which isn't much for a 2.0L motor and just continue to run my 50trim with 9:1 compression Wiseco pistons. At the track i'll run race gas and spray a 50hp shot ontop which will give me the extra steam I need.

I figure I should be able to go 11.8 on my car on pump gas with my new motor. Considering I did 12.1 with my 7 bolt with 8.5:1 compressison on stock cams, I think taking 3/10ths off with cams and more compression is reasonable and with nitrous get down to 11.5 ish. I'll have to see how it goes but for me thats fast enough and my 2.0L will get me there just fine. I don't want all the torque down low to tear my trans appart. I know a few guys with 2.3 and 2.4 setups and they seem to have more tranny problems generally, but thats just my experience.

 

[huafist]

Another thing to look at is longevity. When you stroke a motor you are going to increase the piston speed. This will wear the cylinder walls faster then non stroker application. With the addition of forged pistons, the only way to geta stroker to work, you will start to burn oil faster and may have problems with blow by. Another place to look would be at the angles of the rods. When you stroke it the angles will be putting greater force on the bearings, pitons, rods, and crank.

Now all this is going to depend on the amount of stroke, what parts you are using, the machine shop you use, and how you drive it. I am not saying that this motor will die after 5K, but the life will be shortened.

boosted's got a good point.
This is the reason you don't see any stroked 4G64's - the rod angles are already quite severe as they stand.
As far as the lifespan of the motor, I think it depends on several things. Of course builder/machine shop/quality of parts makes a HUGE impact, but I think part of it too is driving the 2.3L stroker exactly like the 2.0 - You can't do it and expect it to survive, mainly because of piston velocity as boosted mentioned above. You'll rev it to 7k or 8k once or twice, then you might be plucking a valve out of a street light where a piston came loose and launched it

 

[bus]

***Thread Jack*** The positive of strokers

2.3 stroker, raced last season. 38 dyno pulls reved to 8k on several times, no nitrous. This is a street car, was and will be street driven. Raced hard and driven hard (not stupid there is a difference) The cost for me was 100 more to build a stroker. I would tell anybody who was gonna do a new motor to do a stroker. The people that argue with me about the motor are the usualy the same people that say a 20g is a big turbo and makes to much lag.

Dyno on 2.3 stroker

 

[Lunch_Box]

Another thing to look at is longevity. When you stroke a motor you are going to increase the piston speed. This will wear the cylinder walls faster then non stroker application. With the addition of forged pistons, the only way to geta stroker to work, you will start to burn oil faster and may have problems with blow by. Another place to look would be at the angles of the rods. When you stroke it the angles will be putting greater force on the bearings, pitons, rods, and crank.

Now all this is going to depend on the amount of stroke, what parts you are using, the machine shop you use, and how you drive it. I am not saying that this motor will die after 5K, but the life will be shortened.

So if you are building a 2.4L you aren't stroking anything so does this same idea apply for this as well?

 

[fastcarfreak]

These are all good points.
Bus, it sounds like your right where i want to be. which Internals did you go with?
One more question, when you buy a stroker kit for the car, are there any other things you need for a rebuild, or are the stroker kits complete for rebuild?

 

[uvbneclipsed]

Toda Racing makes a pretty killer stroker kit for all of the Evo 4g63s. Im thinking about picking it up for the Evo 3 engine im swapping into my GST. Theres no replacement for displacement. hehe

derek

 

[boostedinaz]

So if you are building a 2.4L you aren't stroking anything so does this same idea apply for this as well?

This can go a couple ways. Its more to do with the rod angles, wristpin height, piston speed, and some other variables I mentioned above. If these variables are bad, say bad rod angle, then yes it will shorten the life of a motor. This can happen in a stock motor if the designers made it that way. Most of the time the designers, engineers, will try and get good rod angles, piston speed, and so on for reliabilty. When you use a 2.4 you arent stroking it, youare leaving it at its normal dimensions so it shouldnt have a problem, but if you stoked a 2.4 you would get horrible geometry and no fun.

Basically, any motor can suffer from this if the angles are bad and so on, but most motors arent until you stroke them.


I can see were the extra torque could help in the process of killing a tranny, but like some have said the driver kills it not the motor. I am willing to bet that alot of the high HP members on this board running a 2.0 are making as much torque as some of the less modded tranny killing 2.3/2.4's. The strokers will make it lower in the RPM band, but I have a feeling the numbers will be similar. I only say this becasue I have only seen a few people running highly modded on a stoker compared to highley modded on a 2.0.

 

[HighPSI TSi Guy]

Where do you gather that from?

A local friend of mine has a 2.3 stroker, 11,000 miles later he's rebuilding it. All the bearings are shot. Given he does reem the living piss out of it, I guess between piston speed and the terrible r/s ratio, they aren't good for longevity.

I'd build a 2.4 if I was going to do anything. I'm happy with my 2.0 though, good spool and happy revving

2 local guys i know have built them.. balanced by a machine shop and everything... 6 months of driving or so, and the flywheel bolt holes had ovaled they were running 2.4s revving to 8k..

so you guys that haven't had this problem... how did you adress the balance issue to avoid this problem?

 

[Mirage2LTurbo]

2 local guys i know have built them.. balanced by a machine shop and everything... 6 months of driving or so, and the flywheel bolt holes had ovaled they were running 2.4s revving to 8k..

so you guys that haven't had this problem... how did you adress the balance issue to avoid this problem?

I know of several guys running 2.3's, and one running a 2.4 locally. Other than having to replace bearings every 10,000 miles or so (mostly track cars), I've NEVER heard of that happening anywhere. What kind of flywheel's and clutch's were they running?

 

[peregrine]

i wonder how good it would be to DESTROKE a 2.4? its seems that you could put a 2.0 crank in the 2.4 and it would be roughly a 2.2 but better angles and all that garbage. better wrist pin location. wisemen chime in.

 

[Lunch_Box]

i wonder how good it would be to DESTROKE a 2.4? its seems that you could put a 2.0 crank in the 2.4 and it would be roughly a 2.2 but better angles and all that garbage. better wrist pin location. wisemen chime in.

I thought if you put a 2.0L crank in a 2.4L block you end up with a 2.1L not a 2.2L?

 

[My96AWD]

i wonder how good it would be to DESTROKE a 2.4? its seems that you could put a 2.0 crank in the 2.4 and it would be roughly a 2.2 but better angles and all that garbage. better wrist pin location. wisemen chime in.

you would have to have custom 6mm longer rods made for it. because the 2.4 block has a 6mm taller deck height.

 

[NeEmO6]

Very interesting, points. Im actually looking at the carshopinc.com 2.3 kit, as soon as today. I would like to hear more from ppl that actually got a stroker, to address any issues they have experienced. Such as the ppl who say the flywheels coming loose and what not.