Hey I don't really browse these forums and I drive a Nissan but I just have a question for you Honda ppl:

Since you guys depend so heavily on higher revs to making more power - how much can revving higher reduce engine life?

I was talking to a friend about his type S and recommended the Toda spec As w/ the ECU reprogram but he did no want to because he says it will put too much stress on the internals.

I know that this is generally accepted as common knowledge, the higher RPMs the engine operates at the shorter it will last, but can any1 give me some more info from experience how much significant difference does it make?

Thanks. Just wanting to learn more about stuff in general.

 

its really common sense, yes higher RPM puts more stress on engine internals.

how much of a difference depends on the setup, and exact driving conditions. Its hard to give an exact answer i suppose.

That is why if you are driving your car in extreme conditions, you must be proactive to prevent problems and replacing worn out parts. If you do that, then the high loads shouldnt be a huge worry.

 

Ha, you make it sound like Nissan engines can't rev at all.

Luckily enough for us, Honda engines are pretty well built. They are designed to take the revs very well, but high RPM operation will still wear down any engine.

I have seen a large number of B-series engine blocks for sale with spun rod bearings as a direct result of high revs, though.

 

hehe I am just curious as seeing all these products on the market that are associated w/ higher revs (cams, ECUs, etc etc) and there seems to be alotta ppl eating them up like chocolate.

Anyway back ot my question, my friend's comment about the toda spec As... assuming he takes care of his engine, regular oil changes, let's his motor warm up before stepping on it, etc etc. But he will also drive the hell out of the car, how long would you think it'll last? I know this is a really farfetched question, I guess a better suitable question is:
Is it possible to have a fairly high revving motor (the K20 in his case)that is reliable and also retains longevity (by longevity I mean like 10+ yrs w/o rebuilds etc.)?

Thanks I know this is really not something easily answered but I guess the only sure way to answer this is by experience.

 

Well, B series rev to an 8K OEM redline without issue for years on end....



Anyways, Toda As really don't require much of a raised redline... they're very much a midrange cam.

 

with the toda package it raises redline to 9 and make 30hp wiht jsut cams doing it but it shouldn't hurt him to bad as long as u keep checking the engine my 94 gs-r has been beaten on forever been to 8 grand everytime it ever got warmed up and lots more and i've seen my dumbass brother miss 4th at least twice and watch teh tach go voer 9 and the engine still works perfect

 

just noticed i enver really awnsered teh qeustion but i bet it would last 10 years without a complet engine rebuild as long as he makes rue there plenty of oil for the squirters

 

alright, thanks for every1's input.

 

the k20 block is a damn fine engine, and from what i heard it pretty much squashes the b-series. nice r/s ratio, oil squirters, honda build quality/reliability, etc etc. I think that the bottom end can take it.

 

b16a has a 1.74 r/s (1.75 is as good as it gets), it is a v-tec engine so it has oil squirters, and im pritty sure honda built it so what makes k engines so much better?