sean88accord

wtf why did it double post see reply below

crxfreak88

Dont most sleeves crack like in the middle first and then work their way up. Ive heard bad things about blockgaurds but pinning is kinda new. Didnt some guys make like 400hp with just pinning the block. Some dude on ht made close to 400hp on a sohc turbo. And he had no blockguard nor pinning.

sean88accord

Yeah i consider 4 hrs of use fiarly short term. considering the average life span of a car engine.

yeah in the 60's they used to replace 4-5 engines in a weekend. Apearently you dont hang out in circle racing or nascar crowds. Im talking about when posting was used in the late 60's early seventies.

now after about 75 or so GM ford and Chrysler all had specific nascar block casting. and they still do. even more refined and improved however.

Block guard dont cuase overheating. Improper instilation or in sufiecent water pump pressure or volume sure as hell will.

However posting will cuase cylinder wall distortion. I dont use them in my personal engine i have no need to be becuase my honda motor has an iron block closed deck and 300 thousanths thick cylinder walls. :P

but on the motors i have either torn down rebuilt and repiared that have used post's ive seen nothing but trouble.

In all aplicable thoery posts sound great. Except they break the golden rule. you dont wont localized stress on a cylinder wall. and post's cuase localized stress.

If your worried about block guards cuasing overheating maybe ill lookinto making a webbing support that will drop in the cylinders for the d series guys.

I still thini the problems with block guard are extra themral transfer from the cylinder to the cooling system. the block guard acts as a large conductor of heat. Id also be willing to bet theres a really good chane the most guys arent running a big enough radiator. Also try and oil cooler.

Please define cooling system problem?

Dr.Boost

4 hours at almost full throttle is alot of engine abuse IMO.
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sean88accord

Well when somebody post up that after market piston rings will cuase abnormal cylinder wear. yeah i think they need a very basci and short education. I think people should learn to read and reasearch more.

to many myth mongers out there. even a few around here

MikeJ-2009

Sean, when did you invent the automoble?
I study communication in college, and you didn't explain piston rings because you wanted anyone to learn. It's plain to see.

sean88accord

ooh yeah. now you know what my intetions are. wonderful. Maybe some of you guys should go attend a few of classes on engine building and maching.

yeah rings dont cuase bore wear tension and lack of lubricant do.

And if you are so sold on posts ill get the picture of the engine that just came thru the machine shop and ill sho you what happens when you try to stabilize a moving cylinder with the tip of a bolt.

contrary to your belife the cylinder will move and expand upwards of about 0.001 or mroe during regular running and under heavy load can move even more.

talk to a few nascar engine builders. honda motors are un able to defy the laws of physics.

Dr.Boost

Now that's complete bullshit. My Honda motor will never die!!! Noooooo!!! 13,000 rpm, 55 pounds of boost, 789whp, 652lb,-ft torque!!!!!
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88crxSi

now c'mon they Doc. you know that would only happen if it was a b-series engine...