Does anyone know what the factory quench distance is on an AP1 and or AP2

 

ARE you thinking of going thicker than stock? don't. just run a better fuel and turn up the boost. do they sell e85 around you?

 

I already have one but I was running some numbers trying to figure out what I/we can get away with before the quench distance becomes too large. Based on what I have read and seen if we can keep the quench distance near 0.040

 

I definitely have more than two sizes to choose from, between stock and 2.3mm.

 

with guys making 500+ on stock motors, the head gasket kinda became obsolete.

however, there are guys still making 500-600 with 3mm head gaskets. anytying past that its in your best interest to sleeve and build the block.

laskey/inline pro built bottom end is like 3-4k. if your power goals are 600+ this is the way to go. if your 500-600, u can def cheat it with stock compression, and maybe some meth/water for the 550-600 part.

 

I don't doubt the ability of the stock motor to make substantial power, as seen in various setups. However, I don't think there's anyone out there (yet, perhaps) with substantial mileage on a high pressure high compression setup. We've seen stock comptech kits, which run 6-7psi out of the box, run over 100k miles with no problems. However, I haven't seen any 10+ psi turbo setups make it that far, let alone 20k+ miles. I'm not necessarily saying there aren't, I just haven't seen anyway.

Running lower compression is a tried and true method. Car manufacturers have done it successfully for years. While it is true the that even car manufacturers have continued to push the limits of turbo engines, from earlier Porsches running high 7:1 compression to the newer BMW turbo motors running 10:1. However, MOST factory turbos WITHOUT direct injection still run 9.x:1 compression. Additionally, these motors are designed to last 100-200K+ miles out of the box. Without fail, the most common recipe for OEM is to use lower compression (usually 9-10:1, depending whether you are running port or direct injection) in conjunction with iron sleeved cylinder walls.

 

Stock CR here and I dont have exact mileage but it runs like a champ on 10psi pumpgas STOCK compression since this time last year. I think the qench on the stock engines are so good and thats how we can get away with running lots of boost on these 11.1:1 engines. I am never going to change the HG, ill keep running stock engines. If this engine blows I will just pop in another stock motor, but so far so good.

 

I am interested to see how far all these high compression set ups go. It will be great to even see 40-60k out of them, as its fairly inexpensive to buy a used bottom end.

 

yeah stock motor here too. i have about 7k miles on mine at 9psi. if it ever gave out, as i am planning on going to 11psi, which i thought i was at , laskey is getting a phone call from me, as well as mase for a turbo kit that puts 600+ to the ground.

350-400 is fun, 600+ will be WAY MORE FUN.

 

95% of the time I roll around on 300-350whp on my stock motor, however from time to time I turn it up to 500whp when I am out messing around.

Although I've only got ~600 miles on this setup since it was tuned in April...I just don't drive it all that much, mostly a weekend warrior...and even then it doesn't seen inclement weather.