I see everyone build motors left and right, but what I don't see is how long these motors last. Lets say the motor was professionally assembled with forged internals, the block is sleeved, it has a good and professional tune(via hondata, AEM, etc), and the power output is 350whp or so. Could this motor last 20k miles?? Is this question too unreasonable as there are too many factors? If it is, lets say for pure speculation sake, how long would one of you with experience with built motors say they can last?


Modified by 1.8t at 10:41 PM 12/18/2004

 

For 300whp all you need is the proper turbo with good tuning.

 

Yea, but that stock motor has huge odds that it won't last you 5yrs at that power level. The idea is to make a turbo honda as reliable as a forced induction car from the factory, if it can be done.

 

Ive seen built motors last as long as a stock motor if a few things are done.

1. Its driven responsibly and not beat to ****.
2. If its assembled correctly.
3. If its regularly maintained and regularly checked for problems.

 

My stock sleeved motor with pistons/rods has been fine for 30k miles now. My clutch just went but thats another story. I started off with 9-10psi then 12 and ive been running 1 bar in 3rd-4th gear for a while now. Tuning was done by me with AEM EMS.

 

Awesome, these are the type of responses I am looking for. Thankyou for sharing.

 

my last motor (b16: darton sleeves, eagle rods, wiseco pistons, crower springs/retainers, sc44, hondata, 750's) lasted me a little over 50k miles. i probably have 150 11 second pass's at the track on it. i wanted to rebuild it and redo my whole set up (in the middle of doing that now) so one night i was out driving and came across a dodge viper. i only ran 15psi on pump gas, and 25 on race gas. i had no race gas in the car and went to the high boost setting anyways. car was fine. i put almost 15k miles on the car running 25psi on pump gas, and this included several 4 hour + one way trips. i was trying to blow it up and it just wouldnt do it. my walbro 255 fuel pump took a crap on me.....and took a piston out with it.

like mentioned above....good tuning, good maitnance, and most importantly not driving like a retard...and it will last. i think what usually kills motors for people that treat their cars good....is that you always want more power. 10psi of boost will slowly creep up to 20psi...most people just start getting greedy.

 

i'm bringing this thread up from the dead because i have some supplementary questions.

we all know that small cc 2.0l engines from the factory will take a beating under full warrantee at almost 300hp (jdm suby, mitsu). but are these engines built better than say a full sleeved/rod/pistons honda? are there other turbo build strengthening issues we miss when building a honda, in considering longevity and reliability as the formost concern (ie. 150k miles+ smoke free).

what about the trannys, will honda trannies wear excessively compared to a real boost tranny (not counting using slicks)?

d

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daver &raquo;</TD></TR><TR><TD CLASS="quote">i'm bringing this thread up from the dead because i have some supplementary questions.

we all know that small cc 2.0l engines from the factory will take a beating under full warrantee at almost 300hp (jdm suby, mitsu). but are these engines built better than say a full sleeved/rod/pistons honda? are there other turbo build strengthening issues we miss when building a honda, in considering longevity and reliability as the formost concern (ie. 150k miles+ smoke free).

what about the trannys, will honda trannies wear excessively compared to a real boost tranny (not counting using slicks)?

d</TD></TR></TABLE>

wow this is one from waaaaaay back. All engines have a weak spot even the famous 2JzGTE and the SR20DET are prone to failure. The B series engines and trannies are very well made. The weak spot for them are the piston ringlands. Give them too much power and the will eventually go. Look at 4G63's and you'll notice the pistons are very beefy and that's why they a stand up to that high horsepower abuse.......but their weak spot is the cranck (old gens) and of course the tranny. So like I said, all cars have a weakness. Fix that weakness, bump up the power, then move on the the next weakness.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy &raquo;</TD></TR><TR><TD CLASS="quote">. So like I said, all cars have a weakness. Fix that weakness, bump up the power, then move on the the next weakness.</TD></TR></TABLE>

 

The only real weakness with hondas is they're so easy to make power from. In other words, USER ERROR. Johnny Riceball buys an ssauto kit, then blows his motor because he thought that ebay mugen chip could handle boost.

Most other makes are MAF-tuned, and a MAF chip covers a large range of setups. Change one variable on a Honda, and you either retune or set the timebomb ticking.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by adseguy &raquo;</TD></TR><TR><TD CLASS="quote">

wow this is one from waaaaaay back. </TD></TR></TABLE>

well, no one can say i havn't searched

 

bump cause im interested

 

from experience turbo motor with big setup dont last even on low boost. unless you run a small turbo and keep it like 10 or less boost