Longevity of 2.3 Stroker Motors

[timawdtsi]

About 15k miles ago I replaced the walked 7-bolt motor im my car with a built up 6 bolt
This motor has appeared to have spun a bearing
The question I have is those with a 2.3 stroker how have they been with relibility.
Reading previous posts (searching through 200 posts on strokers) I havn't came across anything with long tearm relibility.
I really don't want to have to rebuild the motor again in about 15k miles.
The car is a daily driver that goes to the track for infrequent 1/4 mi (3 times year )and some lapping sessions.
Those with a 2.3 stroker how much milage have you put on the car since the swap?

 

[Scrymerr]

I know this is probably not too helpful of an answer, but if it spun a bearing after only 15k, there was an error in the build. It should not have done that, and should not do so in the future if it is built correctly. Good luck.

 

[turbokidd]

I have a good friend who had a 2.3 Stroker build by a known, "reputable" builder, and it didn't last 2,000 miles. This car barely saw the street before it ate itself. I also know of several others that have had similar experiences with the same and other builders.

My advice- just build a strong 6-bolt and you'll be happy.

 

[telly699]

I cant say I am the most experienced engine builder on this site by any means, but isn't it obvious that if the engine blows super early something was built wrong?

I mean if a 2.3 is built perfectly it should last for about as long as a perfect 2.0, eh? :thumbdown What fatcors on wear change with the 2.3?

-Jerad

 

[bfdahl]

Id have to say that any engine that makes it to 1k miles was probably build corectly.
After that is all mantiance, tunning and the qualitly of the parts in the engine. I will go or it will blow baby!

 

[leakyfaucet]

I mean if a 2.3 is built perfectly it should last for about as long as a perfect 2.0, eh? :thumbdown What fatcors on wear change with the 2.3?

Well for one, the rod angle is slightly worse on a 2.3. Also, at any given engine speed, the pistons will be moving faster, wearing the cylinder walls that much more.

 

[heavyD]

Id have to say that any engine that makes it to 1k miles was probably build corectly.
After that is all mantiance, tunning and the qualitly of the parts in the engine. I will go or it will blow baby!

Wrong. I have seen mistakes with incorrect size bearings used (on a 4G63) and the engine actually lasted 7000 km until the mains failed.

 

[half-cocked]

Well barring that you used the wrong parts, an engine that lasted 15K miles was probably assembled right.

 

[Black95TSIawd]

Well for one, the rod angle is slightly worse on a 2.3. Also, at any given engine speed, the pistons will be moving faster, wearing the cylinder walls that much more.

i'm going to have to agree with this post. It answers the thread starters question perfectly. Granted a properly built motor should last in any setup, 2.3's have a different rod/stroke ratio then 2.0's henced the increased stress. If you have the money, a built 4g64 would be better off considering the block and internals are originally 2.4 liters.

 

[TargeT]

i'm going to have to agree with this post. It answers the thread starters question perfectly. Granted a properly built motor should last in any setup, 2.3's have a different rod/stroke ratio then 2.0's henced the increased stress. If you have the money, a built 4g64 would be better off considering the block and internals are originally 2.4 liters.

with the extra tq you get from a 2.3 and extra spool up I lowered my redline to 7k(stock baby!) & had no problems at all for the 500 miles i ran it (then some chick hit my car)

there's been some long lifed 2.3's but on a car that see's track time (even if its only a little) your going to have to expect a shorter life span & more extensive maintence on it. I"m going to pull my engine and drop the oil pan, check tq down on everything then put it back into my 2nd gen & run with it

i dont think there's any draw back to a 2.3 or 2.4 that you wouldnt see other wise. mostly just because of the abusive nature of track related driving

 

[The Foos]

Id have to say that any engine that makes it to 1k miles was probably build corectly.
After that is all mantiance, tunning and the qualitly of the parts in the engine. I will go or it will blow baby!

BTW, a poor engine build doesn't always show up in the first 1k...

Anyhow, the 2.3L stroker has a decent stroke to rod length ratio. It isn't as good as the stock 4g63/61/64 ratios, but it isn't bad. You should run less rpm with them though....

Another problem I have seen is that the piston wrist pin hole runs into the oil ring groove on the stroker pistons...this could cause a oiling issue with lubing the cylinder walls...that is only speculation though...I haven't seen it, or heard of it, just something to think about...

But your problem isn't that I assume since you said it was a spun bearing...

Other than that, you shouldn't be having any problems other than the typical dsm problems, unless you are using unproven parts to do your stroking...


Scott

 

[Hal]

A 2.3 has the SAME rod angle as a stock 2.4.

So, if rod angles were the issue then a 2.3 should last as long as a 2.4

Hal

 

[The Foos]

A 2.3 has the SAME rod angle as a stock 2.4.

So, if rod angles were the issue then a 2.3 should last as long as a 2.4

Hal

Yep, your right. I don't know what I was thinking.

Scott

 

[me612]

A 2.3 has the SAME rod angle as a stock 2.4.

Hal

EXACTLY, beat me to it. That seems to be everyones arguement against the 2.3 is that it has horrible rod angles, and that's why they chose a 2.4 over a 2.3. But the fact is they have the same angles. There is tons of info on here about 2.3's to be read. Take the time to research it. It's such a simple build-up that will cost you not much more then a fresh 2.0 build-up.

 

[Black95TSIawd]

A 2.3 has the SAME rod angle as a stock 2.4.

So, if rod angles were the issue then a 2.3 should last as long as a 2.4

Hal

brain fart. Thanks for the correction. And making me feel small over something so easy to figure out on my own. :laugh:

 

[bfdahl]

Wrong. I have seen mistakes with incorrect size bearings used (on a 4G63) and the engine actually lasted 7000 km until the mains failed.

You got me on that one, I should have also stated "penteding your builder isnt blind"
in my statment as well! PS Heavy D what did the oil presure look like? it couldnt have been shit with that kind of clearance! 7000 k is like 5000 miles or so thats pretty good for a f**k-up like that!

 

[me612]

7000km is closer to 4375 miles, not 5000. just fyi

 

[clipise]

my friend, that has a slowboy talon, has a 2.3 stroker. he had that thing for awhile. he always says good about it. besides that 2.3 burn oil. but its no biggie.

 

[Lunch_Box]

Why is it burning oil?

 

[heavyD]

You got me on that one, I should have also stated "penteding your builder isnt blind"
in my statment as well! PS Heavy D what did the oil presure look like? it couldnt have been shit with that kind of clearance! 7000 k is like 5000 miles or so thats pretty good for a f**k-up like that!

Balance shafts were removed so oil pressure looked okay. The mains were completely worn until there was nothing left. Guy had to get a 6-bolt replacement engine.

 

[clipise]

it burns oil, not alot, but some. because the rings wjere swicthed around. like the middle ring is on top and the top ring is on the bottom. its swicthed like that for better compression.

 

[Hal]

it burns oil, not alot, but some. because the rings wjere swicthed around. like the middle ring is on top and the top ring is on the bottom. its swicthed like that for better compression.

Who came up with that bit of brilliant thinking?

Hal

 

[The Foos]

it burns oil, not alot, but some. because the rings wjere swicthed around. like the middle ring is on top and the top ring is on the bottom. its swicthed like that for better compression.

putting the oil ring on top?...that doesn't sound too bright...I guess that would better lube the top compression ring, but I don't think that is the best idea in the world...

 

[clipise]

if i heard my friend correctly, Slowboy racing did.

hes sponsered by them.

i could of mis understood him, but, im pretty sure he said that. ill ask him later again.

 

[Hal]

if i heard my friend correctly, Slowboy racing did.

Cool, another racing innovation from SBR.

Hal