Life of rebuilt motor?

[blink]

Quick question with just a ROUGH estimation answer is all I would like.

92 GTR, theres damage in cylinder 1, hasn't been opened up yet,

anyways' on average if you have a shop rebuild your motor with forged pistons and cranckshaft, new timing belt, water pump...all the essentials with no hardcore performance mods.

Would anyone be able to estimate (assuming you don;t beat on the car on a daily bassis) how long the engine should be good for since it's all nicely rebuilt?

id be happy with an estimation such as either 10k....60k...130k...

just someone who knows the engines if you treat them well

[BrianV8]

IMO if done right a rebuilt motor should last just as long if not longer than the original depending on the quality of parts you put back in it.

[blink]

Thank you! Alright so now that I can expand on my question.... I got a quote for about 9000 from a nissan specific tuning shop.

they said, forged pistons, valves, crankshaft, belt, water pump, oil pump, to get the car running, and running properly without cheaping out.

Are there any things I should MAKE SURE to have installed? I honestly just want to get my car running again,,without cheaping out !

[blink]

and I assume since its a good shop, they will use good parts for that price*

[BrianV8]

That looks about right price wise to go through the whole motor. As long as everything going into it is brand name i would say you have nothing to worry about. After that its just quality of the assembly that will determine longevity. Only thing to make sure is they put a crank collar on to guarantee maximum life out of your oil pump

[blink]

Thank you so much. I always had this little voice telling me "oh its not worth it..blah blah.."

I guess now I have something to look forward to lol, and thanks for the crank collar, ill be sure to get that done!

[BrianV8]

haha ya i've been back and forth on it more for the reason of money than reliability but my parts collection has begun. I'll eventually go down that road too haha.

Good luck

[NismoS-tune]

Depends on the shop. My rebuild which saw EVERY mod except for larger valves lasted 1200km. Cause of failure isn't for sure but you never know if something will last. New engines fail sooner or later. How long will you live?

[blink]

Depends on the shop. My rebuild which saw EVERY mod except for larger valves lasted 1200km. Cause of failure isn't for sure but you never know if something will last. New engines fail sooner or later. How long will you live?

Would you mind tellin me the shop? Or pm me?

[r33_gtst]

A lot of motor blow ups is because of clearance issues.
Get a Nissan mechanic or someone go is an RB guru to do the work
It's those guys that build the best motors because they don't make the mistakes that they may have made in the past
Sure a mechanic can build it and make it run, but it's making it last which is the key
I'd guy all the parts yourself so YOU know what's going into it and take it to a Nissan specific mechanic.
It's all about clearance....

[Daryl @ RightDrive]

It should last another 100K if done properly and not abused. Just don't cut corners as so many people mistakenly do.

[Skym]

It does depend on how hard you drive car, how much hp engine has, what fuel you run engine on, ECU tune, etc. To many variables to give an exact answer as to how long engine last's. Even just getting a bad batch of fuel from service station and engine knocking can destroy a engine. Kind of why I stuck with stock ECU, as it can detect knock, adjust tune to suit lower octane gas.

People I know with RB26 GTR racecars (wet sump, 98 pump gas) rebuild engine every 3000km, but car is thrashed for all of those 3000km on racetrack or Targa. Most thrashed wetsump racecar engines, whether import or V8 are usually rebuilt every 3000kms. It's not just the bottomend that suffers (usually bearings due to oil related problems), it's the head as well. If have dry sump, can extend the amount of km between rebuilds as the bearings don't wear out as quickly due to oil related problems.

Some claim 100,000km for their wet sump RB26 engines before rebuild is needed, but they are mainly road driven and sometimes used for track day (not under constant hard use).

[Dragon Humper]

Meeeeh....kinda. There is no reason that you can't get at least 160,000km out of a "proper" build. And by proper I mean an almost obsesive compulsive attention to the assembly. As long as you use a good forged piston and the rings are gapped a little big you should never have an issue with some detination. It's all in the operators hands, you feel something is off, you get the hell out of it and find the issue.

Forged pistons, shot peened rods with ARP bolts, sleeved pump drive and an N1 pump and you should be good for a very long time at or below 500hp.


Jon.

[dsmart]

OEM nissan engine can last well over 100,00km's under 500hp so I dont see why a forged is the only option on rebuild. I know once you have it opened up, upgrading is hard not to do but a properly built OEM'ish engine should last just as long....maybe longer as there may be less desire for big power and experimentation

[JDMotion]

why not to get a new engine from any jdm shop?