Recommended RPM for stock bottom end
#1
Recommended RPM for stock bottom end
Ok, I have to get a tune still and Im still on stock shift points right now. I have a 46,xxx mile motor.. with the 306 cam. Im really worried about breaking something..since the car was just broke for 11months and Its my daily driver
Im wondering if I can shift at 6500rpm and be safe..or if 6300rpm is a better choice? Will the engine even hold up for very long shifting that high??
Thanks in advance.
Rob
Im wondering if I can shift at 6500rpm and be safe..or if 6300rpm is a better choice? Will the engine even hold up for very long shifting that high??
Thanks in advance.
Rob
#2
Re: Recommended RPM for stock bottom end
I wouldnt go much over six with it all stock.
I'd go with the 6300 or even 6000 if you want it to last the longest. Above that it could be hit or miss depending on your oiling systems health.
I'd go with the 6300 or even 6000 if you want it to last the longest. Above that it could be hit or miss depending on your oiling systems health.
#7
Re: Recommended RPM for stock bottom end
Frequently hit 6300? or is that just occasionally.. Ideally I would like to see at least that... Ive seen guys spinning that high on their post..however after reading a year old thread about it..I usually notice a new setup in their SIG.. and that bothers me.
#9
Re: Recommended RPM for stock bottom end
As long as your oiling system is up to the task , a few hundred RPM over 6 will be fine. The real killer could be detonation, that is what usually beats a bearing out,
#10
Re: Recommended RPM for stock bottom end
Well I have a new oil system..but do you guys recommend a high volume pump? Ill stick to low rpms for now... (around 6K) Hmmm.. what exactly causes the detonation?
#11
Re: Recommended RPM for stock bottom end
I'm shifting @ 6300 with a comp cam 224/230 and using nitrous with a stock bottom end. You won't be making peak power until atleast 63-6500. That cam likes 6500. why put that cam in if your not going to use it. Just my 2cents.
Joe
Joe
#12
Re: Recommended RPM for stock bottom end
Originally Posted by S8ER95Z
Well I have a new oil system..but do you guys recommend a high volume pump? Ill stick to low rpms for now... (around 6K) Hmmm.. what exactly causes the detonation?
The XE cams are designed for 5800 rpm according to comp cams.
#13
Re: Recommended RPM for stock bottom end
Thanks for the HV pump info.. I do think I need a new pan here eventually (has a jack mark on the bottom of it...doesnt appear to be damaged much..but I wont risk it and its getting changed out.
It doesnt look like I need to be revving past 6K really... if that powerband info is correct.. hmmm...
It doesnt look like I need to be revving past 6K really... if that powerband info is correct.. hmmm...
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