My question is I have a greddy twin setup on a stock block. I am in preporation now for a built short block I plan on doing everything and not being a cheapo. But from what I am hearing some people are on ther third and even fourth build. I defiantly don't have that kind of time or money. So I guess what I'm asking is am just going to build this motor just to have it blow up faster than my stock block will?

How many miles have other members made on built motors????

 

I have 20K miles boosted on mine, about to tear it down for new seals/gaskets. pushing 570whp on a GTM stage 2

 

thats a loaded question since most people drive 99% of the time under vaccuum..

Like above, he certainly didnt drive 20,0000 miles making 1 psi or more. I have maybe 6000 miles on my motor but maybe 2 miles of boost.

 

^ this is true. I did do some good boosting tho..

 

Good point. I'm just wondering how long they last I know a lot of variables go into that like maintenance and beating the ---- out of your motor. I just don't want to do the buil again real soon

 

All depends how it's put together, unfortunately even reputable high quality shops have fawkes ups, some guys get lucky some get owned. I know guys who've never even got a decent tune and drove around just fine and other guys who took every precaution and spent every dollar only to see it pop on the dyno. In the end it's a machine and machines fail

 

A lot of it will come down to the TUNE. Build it right and it should be solid. Don't try to push every last ounce of HP if you are worried about longevity. A good solid, yet conservative tune will be powerful and safe if done right.

 

I think I've only noticed 2-3 people on the forums going through more than one built engine. Pretty sure the usual FI experience goes like this:
1) install FI
2) blow stock motor after 20K-40K at 6psi
3) install built longblock from GTM or IPP and bump it to 9psi
4) figure out tuning problems and other stuff for 6-12mos
5) if you stop modding here enjoy realistically for 50K without rebuilding the motor or turbos.
But no one stops modding or they track it so they either blow the engine going for more or trade to a different platform or they have to part out and sell the car.

 

most of the guys that blow up their built block either don't post about it and rebuild grudgingly or throw in the towel and part out, in either case we don't hear about it. Their "awesome sick going to destroy all" build thread just drops off or in some cases is even deleted

 

im actually going to throw on my gtm tt stage 2 kit when i get back from the desert so i will let you know how long it lasts on my stock block. I already have all the parts just need to have it installed and then tuned, probably going to be done by Motiva Motorsports in Albuquerque since i am around the same elevation and it is only a few hours away.

 

I'm only at 17K miles but mine hasn't popped yet. A good shop and tune is what matters

 

You on stock block of built with 17k miles

 

built short block

 

My Stock block popped after 2 years a driving hard at 5.5lbs of boost. My Mileage was only about 9k miles.

About to build it but keep it to 5.5lbs until I can do more at a later date.

Good luck!

 

Ya I'm at about 2000 miles on a stock block running seven lbs of boost at 385. I have a boost controller and sometimes I run 9lbs of boost making 440 sometimes not very often. I just don't want to sink all that money into my motor and have it blow up after two months.


Keep the posts coming I would like to see more builds and numbers in his thread