Toyspeed.org.nz Message Board

by **Mr Revhead** » Mon Mar 23, 2009 10:30 pm

Dell'Orto wrote:
Mr Revhead wrote:Fivebob, you make some good points there.... i'll read that lot after work....
blacktops dont rev any higher. and yes when oil levels kept topped up, and under normal use then there isnt a problem with them.

Well, yeah they do, other 4AGE's factory redlines are 7200-7500 and BT's are 8000.

but whats the rev cut on them all

OMG so shiny! · by **Dell'Orto** » Mon Mar 23, 2009 10:32 pm

Silvertops are ~7700, Blacktops are 8200 IIRC. I think the 16v ones all cut at 7500? Smallport ones may be higher, I cant remember

by **Mr Revhead** » Mon Mar 23, 2009 10:41 pm

i have to admit to never redlining a blacktop, all the ones i'v driven have been owned by some one else!

i still have to go read what fivebob posted so i wont comment further on the thread topic until i'v had a chance to digest that

by **thegreatestben** » Mon Mar 23, 2009 10:44 pm

Mines definatly not 8200 :oops:

saw 8500 on numerous occasions :twisted:

by **Mr Revhead** » Mon Mar 23, 2009 10:46 pm

they factory rev counters are also a bit inaccurate! both my smallport and silvertop would excede 8k rpm by the gauge

by **thegreatestben** » Mon Mar 23, 2009 10:57 pm

Could very definatly be the case.
I'm gonna hopefully put the diagnostics gear at tech on the adub tomorrow.
Might be a bit more accurate rpm reading there.

by **Lloyd** » Mon Mar 23, 2009 10:59 pm

Mr Revhead wrote:i have to admit to never redlining a blacktop, all the ones i'v driven have been owned by some one else!

Those statements are mildly contradictory

We seem to have valve issues with sustained high revs more than rod issues on the blacktop in one of the race cars

by **Mr Revhead** » Mon Mar 23, 2009 11:00 pm

dropping out shims?

by **Lloyd** » Mon Mar 23, 2009 11:02 pm

Nah, closing up the gap. Stretchy valves and recessing into the head a bit as far as I know. All on the inlet side. They're going a little bit over the rpm Toyota would recommend though

by **Mr Revhead** » Mon Mar 23, 2009 11:04 pm

i bet..... what rpm?

by **Lloyd** » Mon Mar 23, 2009 11:10 pm

I think they set it up for a cut at 9k. It hasn't done bearings or rods though

by **AceSniper** » Tue Mar 24, 2009 4:34 pm

weird iv done 22k km on my blacktop with countless 95/9800rpm shifts... (rsm/link/dyno proven) had no issue... and still going as strong as the day of install.

Also used to have a blacktop that was push 9000rpm (on stock tach) never spat a thing used a little oil though.

by **Crampy** » Tue Mar 24, 2009 6:38 pm

I had my BZ-G for about five years and never had a problem with revving it out. I did a few tarmac sprints with it when posted on course down in Blenheim.

Toyspeed.org.nz Message Board

why blacktops run bearings.....

Who is online