**Pics of my blown engine**

[StarDiamond]

Originally posted by bastarddsm
Ok soo how many motors u guys built. oh wait u guys just stick a boost controller and a catback on and call yourself tuners. I am not calling my self a tuner either but i bet i know one heck of a lot more than you guys do. anyway to explain the boost helpin it stay together. u have to understand why rods break. it is because of the stress on it from constantly switching directions at tdc in between the exhaust and intake stroke. now if when thats happenin if there is boost pushing the piston back down then there isn't as much pull on the rod from trying to change directions of the piston. IT'S COMON SENSE. I grew up in a machine shop where 900hp small block chevys were built every day and i am currently 1 semester away from having a masters in mechanical engineering. The rich lean thing didn't have a thing to do with the rod poking a hole in the block. so untill you guys actuall build a motor don't talk about thing you don't know

Just to let you know i have been racing cars for the last 5 years and have blown plenty of engines. So I do have a sense of knowing what I am talking about. I have seen plenty of thrown rods what’s your analogy on what happened then big shot. Where you go to school and I am also going to Milwaukee School of Engineering for mechanical engineering. So if there is any other rude ass comments you want to throw out there let me know.

 

[StarDiamond]

You don't think anything with the pin in the piston had to do with that?

 

[Travis_GST]

Originally posted by GSXanimal
exactly too hhigh rpm=launched rod.

um no...i didnt break 5000rpms the whole way home. It blew at around 4000 if that.

 

[bastarddsm]

has the car ever seen high rpm. if yes then the rod bolt was stressed. then it finally failed when it came apart. parts like that only have a certain amount of cyles of stress untill they fail. it is a proven fact.

 

[bastarddsm]

has the car ever seen high rpm. if yes then the rod bolt was stressed. then it finally failed when it came apart. parts like that only have a certain amount of cyles of stress untill they fail. it is a proven fact.

 

[Keaka26]

Originally posted by heavyD
2G pistons are better than 1G pistons. You want 2G pistons and 1G rods.

Against the common conception, I beg to differ.

People get 2g pistons because of higher compression. Higher compression means your margin of safety when tuning is smaller. 7.8:1 vs 8.5:1 ...In california and other places especially (we have 91 octane) having low compression pistons is a HUGE plus on pump gas.

Secondly, 1g pistons have a thicker ring land. Thicker ring land = able to withstand more abuse. Which equates to a yet bigger margin of safety.

 

[dsmturboawd]

lots of people have had just as much success with 2g pistons as they have with 1g pistons.


both have their advantages and disadvantages. i would think that the higher compression would be better in a street car, but thats just me. either are fine.

 

[timloomis]

well it had oil in it at the time,the rod bearing wasnt welded to the crank.and he said it went out at 4000 rpms,so no over-revving.mayb crankwalk,but i dunno if itll do that,i dont have a 7 bolt.my guess is just a weak rod from the factory gave up.oil blowby on the pistons wouldnt explode a rod.ive seen firsthand factory defect internals.a wristpin came out before and took a nice lil gouge outta the cylinder.just bad luck is all i can say,yelling at him and telling him its his fault wont bring his motor back.l8r.

 

[Travis_GST]

finally got my car back today...so its all gravy

 

[dsmturboawd]

wow its already fixed?

new (new to you) 7 bolt?

 

[Travis_GST]

yea it had been like 2 weeks already. Felt like a year. haha. yea its a new 7 bolt.

 

[Keaka26]

Try this: Im just getting my car back today after FOUR MONTHS! It seemed like a millenium. Ive had a TON of dreams about driving it during that time....How sad.

 

[dsmturboawd]

last year my car broke early april and got back together early september. in other words, it broke basically on the first warm day and was finally fixed on the first cold day. hows that for crap luck.

 

[Keaka26]

how about this: before my car broke down , gas prices were about $2.10 per gallon...Then my car broke and gas was down to about $1.65 for premium, then as things with my car slowly came together, the prices finally started to rise. Last week, the prices jumped $.20 cents in ONE DAY. Now the prices are back to over $2.00/gallon, I get my car back later today =).

 

[Defiant]

That's what you get for trying to run cheap gas.

 

[Keaka26]

$1.65 for premium

How did you make the assumption anywhere in my post that I used cheap gas? I always buy premium, and I always get it from Union 76 or Chevron.

 

[Travis_GST]

i was wondering that myself

 

[Keaka26]

I find that odd esepecially coming from a moderator

 

[dsmturboawd]

perhaps he was referring to the original poster

 

[lowridin2g]

union 76???????? chevron?????? try shell or sunoco 93 @ shell and if u still have 94 @ your local sunoco then get 94

 

[Travis_GST]

Originally posted by dsmturboawd
perhaps he was referring to the original poster

ehh..well i always use premium if he was referring to me

 

[Keaka26]

Umm, basically, we dont HAVE sunoco here in california. And we ESPECIALLY dont have 92,93 OR 94 octane. We have 91!

76 is pretty much as good as the gas gets around here. Plus its the only gas around here not using MTBE. BTW, shell gas sucks horribly. Every time Ive put it in one of my cars, Ive had a problem.

 

[keltalon]

Originally posted by Black95TSIawd
wholly ####in shit. damn 7 bolt rods.

not too loud all the 2g owners might hear you!

 

[dsmturboawd]

or 1g guys.

i dont understand his comment anyways; theres nothing wrong with 7 bolt rods.

 

[dsmracer69]

Hmmm really the size wouldn't be a factor now would it hmmmmm