4agte rev limits

[albertos]

just wondering what a safe rpm limit is for a 4agte ,its the ze motor with stinger and stock internals unsure of klm,s,so i can set tacho ,,thanks

[Dxaqta]

10,000rpm

it would be a good laugh

[rthy]

8000 would be nice and safe

[86sp]

Ive just dropped mine to 7200. No point reving it when your no making any power up there..

[psychofox]

with stock cams you're not making anymore power after about 7,000rpm, limit it to 7500rpm and you *should* be right. as you say, unknown internals....

[Hen is a total nutcase]

My stock AE92 ZE has been pounded into a 7000rpm fuelcut constantly for the last 3 years. No problems in that regard at all. Given the factory fuelcut is 7xxx on these then I'd happliy take it to 8 all day long.

Above 8 I'd get a little suspect on a non-prepped bottom end. I'm sure it'll handle it for a while, but lifespan will decrease.

Hen

[klusio]

Think mines set at 7400 but decreases in power after 6800 so 7000 is pretty reliable, thats still well in the red on a ADM tacho lo

Somone in this thread might be able to tell me on my microtec LTX10s there is a tacho wire think its blue and grey, what do I hook it up to in the dash to get the tacho working?

[Hen is a total nutcase]

Look here (http://www.toymods.net/forums/showthread.php?t=6355) for how to hook up your tacho wire

[BANZAI-PARTS-GARAGE]

sorry to hijack how far with a 16v rev to with 20v bottom end reliabley??? any one know?? 9k?

[mattysshop]

my limiter is set to 8K, only on ignition, the possibilities of flamage are endless! lol.. with the stock smallport cams i don't see anypoint.. but we will see where the power come on if i do a set of cams.. or turbo it..

[70XIN]

7800rpm here on stock internals with microtech LTX8 .. but again, if you aren't making power above 6K, why go any higher? http://www.ae86drivingclub.com.au/forums/emoticons/smile.gif

[ToySprinta]

I've got mine set for soft cut at 8300 and hard cut at 8500.
I've found that the extra revs means i can just hold 2nd the whole way around the local hillclimb. Was worth at least a second off the time.

[AE86represent]

Stock big port, 65000 original km, 304deg custom ground cams, 9500 redline http://www.ae86drivingclub.com.au/forums/emoticons/blink.gif running LT10S. Engine has done 15000 km driven like this everyday to work and back. So far no drama's. Have allways run Mobile1 5w50 and changed every 5000km.

I never expected it to last as long as it has, Good old toyota over engeneering http://www.ae86drivingclub.com.au/forums/emoticons/2thumbs.gif

I have been told by several people 8500 is a safe redline for a stock bottom end, as the rod bolts are the weak point. With a balanced stock bottom end and ARP rod bolts I was told 10000 is fine as long as you are willing to replace bearings regularly, lol.

[jezz]

fuel cut on my mildly worked 4agze (aw11 in aw11) is 7700.

[AE86represent]

4 age 16v are safe to about 8350 rpm after that they start to suffer oil pump cavitation ...ie no /less oil pessure and volume
you can remedy by using 20v black top pump ..these are apparently good for up to 10,000 rpm safely[/b]


That is an interesting point. I am in the process of building a replacement engine for my own vehicle and a 4A-GTE for a client. Both are getting complete rebuilds, I was going to simply buy new standard 4A-GE 16v pumps but if a better alternative is available, then by all means I will use it. Are these pumps available through toyota australia??