2.6l stroker

[2gmummy]

I have my 2.4l block and im debating on going to a 2.6l stroker. Ive been looking around everywhere and most people say the rod ratio is too severe, can't rev it high enough, too expensive or just dont do it without backing up.

Inside the Brian Crower 2.6L stroker... - Page 13 - evolutionm.net

TO BE CLEAR I UNDERSTAND THIS IS A 2.6L ON AN EVO, but it is simular enough to be relavent.

Here's what im thinking a 2.3 rod ratio is 1.50, the 2.6 is 1.47 which is only 0.03 difference with a lot more displacement 2.3 rev limit by the rod ratio is ~7400 and the 2.6 is ~7200 so not too much top end rev loss. It is expensive $3200,most stroker kits are what $1500-2500 ish? Which is my main problem, does anyone else make the 106mm crank?

Overall it kind seems worth it, I was originally going to do a long rod 2.4l but the 2.6l is so tempting!

Does anyone have input or experience with the 2.6l stroker? Please back yourself up and not just be like "it sucks because f*ck you" haha

 

[Bud92gsx]

Your gonna have to do a little more research before pulling the trigger on this..

The thread said a 6262 on wastegate pressure 18psi at 3600rpm untuned..

But then the graph on the other link in the thread..Said boost over 4.5k..That's sounds a little fishy on a 2.6..If you get boost at 4.5k and have less than 3k rpms before you have to shift..

So more research would be the best thing to do from here..

 

[DiamondStar90]

i been wanting to try a 4g63 2.6 in my starion but like to know anyone with experience and i believe rbian crower is the only one with 106mm crankshaft...i might call them this week and find out what all needs to be done

 

[hubz91talontsi]

IMO I would try to increase the rod ratio as much as possible. Running at least a 159 or 162 rod. The guys on evolutionm are getting pretty crazy with these high rev long rod motors.

 

[nuclearr]

I personally called Brian Crower and they said it will be capable of revs to 9k. Not sure I would go any higher than 8k personally. I also have done the math even at .040 over it is not a 2.6l more like a 2.55 they just round it up. I am going to do .020 over. Which is a 2.5. I had a 4g64 block went to tear it down and it hads a hole in the block the size of a dime and a crack about 6 inches long. I have not had time to track down a new block at the price I am willing to spend on a bare block.

B/C also told me that they offer the stroker kit in a 6-bolt and a 7-bolt even though its not listed that way.

 

[jcart953]

I have my 2.4l block and im debating on going to a 2.6l stroker. Ive been looking around everywhere and most people say the rod ratio is too severe, can't rev it high enough, too expensive or just dont do it without backing up.

Inside the Brian Crower 2.6L stroker... - Page 13 - evolutionm.net

TO BE CLEAR I UNDERSTAND THIS IS A 2.6L ON AN EVO, but it is simular enough to be relavent.

Here's what im thinking a 2.3 rod ratio is 1.50, the 2.6 is 1.47 which is only 0.03 difference with a lot more displacement 2.3 rev limit by the rod ratio is ~7400 and the 2.6 is ~7200 so not too much top end rev loss. It is expensive $3200,most stroker kits are what $1500-2500 ish? Which is my main problem, does anyone else make the 106mm crank?

Overall it kind seems worth it, I was originally going to do a long rod 2.4l but the 2.6l is so tempting!

Does anyone have input or experience with the 2.6l stroker? Please back yourself up and not just be like "it sucks because f*ck you" haha

To be honest I was looking into this several times as I was contemplating on what to do for my build this upcoming spring. I was thinking on some crazy builds and thought I try something different and either A) make a 2.6L stroker N/A build or b) 2.6 L turbo build C) just turbo the 4g64 and leave it be for a while D)2.4 sohc/dohc N/A build .

Anyway to answer some of your concerns/questions :

Ive been looking around everywhere and most people say the rod ratio is too severe, can't rev it high enough, too expensive or just don't do it without backing up.

To be honest I dont think you would want or need a 2.6l stroker to rev that high. The 2.4 isnt even that great at high rpms and I wouldn't expect the 2.6L to be any better. However one of the benefits would be that your wouldnt need to rev it to the moon to make some good power.

Does anyone have input or experience with the 2.6l stroker?

I read that whole article last night and if you look at that article you posted the guy on there Mr. Alex who was making over 1,000 hp with the storker kit doesnt rev it past 7500k. I believe hes been running his setup for 2yrs or so and it has about 8k on the motor and mostly sees track. So I dont know if that gives you a little more idea on things.

If not here's a little more information:
ka26det brian crower stroker numbers : KA24ET / KA24DET Forum
ka24de: Stroker kit vs. Turbo - Nissan Forums : Nissan Forum
http://www.thegalantcenter.org/showthread.php?t=25446
2.5L Stroker kit for the Evo X?? - EvoXForums.com - Mitsubishi Lancer Evolution X Forums
http://www.dsmtuners.com/forums/stroker-tech/389575-2-3l-better-than-2-4l-2.html

Most of those links are from other sites, I don't think anyone here (or at least none that I seen) has tried that combo. You'll probably have to look else where on other sites to get a better insight. Thats what I been doing at least. However, if you find any other information or try this build out before me let me know .

Good Luck!

 

[2gmummy]

Yea I've been looking everywhere and I haven't found much on it. Honestly I'd only plan on taking it 7500 anyways. I don't want to have to long or rods maybe the 156mm but I don't want my pistions to be to thin. Anybody know how much it'll cost to get a custom crank made?