Hi All.

 

I'm looking at getting a aftermarket rev counter.

 

There are different options for how high the rev counters go upto.

 

What is the highest most modified Zeds will safely Rev to? Could this beyond 9000 revs?

maybe with a stroker kit

I have.

 

88mm Wiseco pistons

Eagle rods.

Cosmetic gaskets

JWT 500 cams, springs.

Adjustable cam gears

Ferrara valves

Head work

 

plus all the other usual.

maybe with a stroker kit

 

A short stroke conversion, yes. But as far as I'm aware, all the 'stroker' kits available increase the stroke to gain capacity. You'll make the engine effectively a long stroke and not be able to rev so highly.

 

Beyond 9,000 rpm I would think you'd need titanium con rods maybe? Just to lower the reciprocating mass.

 

At the very least the crank, pistons & con rods will have to be balanced to a gnats knacker (technical term ;)) statically and dynamically.

 

Is somebody hoping for 200mph on stock gearing? ;)

Edited July 6, 200817 yr by dunk300zxtt

Yeah, your deffinatly going to have to get the crank balance, and probably "knife edged" as well to reduce its rotating mass. Then your also going to have to look at the valve train, which to eyes looks like youve covered quiet well. Id also probably look at your big/small end bearings and crank bearings. Obviously, if you want a certain part of your engine to spin faster, you want your bearings to be able to handle the extra friction involved with this sort of work.

 

TBH im not 100% sure on what factors defines how high an engine can rev, and V6's arnt really known to be high revvers. All i can do is apply common sense. It may well be worth speaking to one of the big skyline tuners, its not unusual for the Big Boys in the skyling world to be hitting 9.5/10,000rpm on an N1 bottom end

 

HTH

 

nick

A short stroke conversion, yes. But as far as I'm aware, all the 'stroker' kits available increase the stroke to gain capacity. You'll make the engine effectively a long stroke and not be able to rev so highly.

 

Beyond 9,000 rpm I would think you'd need titanium con rods maybe? Just to lower the reciprocating mass.

 

At the very least the crank, pistons & con rods will have to be balanced to a gnats knacker (technical term ;)) statically and dynamically.

 

Is somebody hoping for 200mph on stock gearing? ;)

 

Not particully, i have altered the gearing but for aceleration so would be nice to be able to rev that lil higher to get my top end back.

 

Basically what has brung this on is that i want to order a Rev counter and i have the options of either 9000 or 11000 revs, is unsure it would normally make sense to go the 11000 revs one just incase but the 9000 rev counter is slightly better set out. Not only that with bigger turbos it may be nice to be able to rev that lil higher so i have more revs while in boost

Yeah, your deffinatly going to have to get the crank balance, and probably "knife edged" as well to reduce its rotating mass. Then your also going to have to look at the valve train, which to eyes looks like youve covered quiet well. Id also probably look at your big/small end bearings and crank bearings. Obviously, if you want a certain part of your engine to spin faster, you want your bearings to be able to handle the extra friction involved with this sort of work.

 

TBH im not 100% sure on what factors defines how high an engine can rev, and V6's arnt really known to be high revvers. All i can do is apply common sense. It may well be worth speaking to one of the big skyline tuners, its not unusual for the Big Boys in the skyling world to be hitting 9.5/10,000rpm on an N1 bottom end

 

HTH

 

nick

 

Yeah the crank will be balanced and as for knife edged my previous crank was but i might try something different this time like when they freeze it or do those other things to them. I'm waiting to see what the garage recomends.

 

By the sounds of it it looking like i should get the 11000 rpm rev counter as it is likely i may be able to rev past 9000 with my setup.

 

i'll attach the tachometer so you can see what i mean

mmmm defi guages. I love my defi setup.

 

Take a look at these guys if your looking at the cryo freezing route http://www.percryo.com/

mmmm defi guages. I love my defi setup.

 

Take a look at these guys if your looking at the cryo freezing route http://www.percryo.com/

 

 

Cool thanks, looks like they are based in the states.

 

ooo... got any pics of your Defi setup?

 

Have you got the Defi Tachometer?

just realised that. Ill find the name of the company of the people my dad used for his motorbike internals.

 

No tacho mate, just boost oil temp water temp at the moment and oil pressure due to be wired in soon using the Mk2 control panel with the peak warn and record facility, but the quality is just outstanding. Ill take some photos for you

just realised that. Ill find the name of the company of the people my dad used for his motorbike internals.

 

No tacho mate, just boost oil temp water temp at the moment and oil pressure due to be wired in soon using the Mk2 control panel with the peak warn and record facility, but the quality is just outstanding. Ill take some photos for you

 

Cool, i've gone for oil pressure, temp and also a boost. I wanted them in the blue but the problem with blue is that they are metric.

 

Do you see what i mean about the 9000 and the 11000 tachometer, the 11000 at lower revs they are all squished together compared to the 9000.

Bit of topic but what is the factory rev limter set at and what do the likes of mines/blitz etc set there rev limt to .Ive got a mines ecu and never hit the limter i take it got one.

yeah, but do you really need to worry about the first 2500 revs when your going to be running as high rpm as 9000+?

yeah, but do you really need to worry about the first 2500 revs when your going to be running as high rpm as 9000+?

 

Good point, i guess also the only time i'll be looking at the rev counter is when i have a heavy foot, the rest of the time i'll change gear without looking at the rev counter and change by feeling when to be changing gear.

 

the 11000 it is.

Bit of topic but what is the factory rev limter set at and what do the likes of mines/blitz etc set there rev limt to .Ive got a mines ecu and never hit the limter i take it got one.

 

I know some aftermarket ecu and chips raise the rev limit but some also remove this limit.

stick to the 9k rev counter. You will not see 9k on your setup. You'll want solid lifters and cams that are setup to make power that high in the rev range. The turbos will fall off power before then.

btw - for comparison. Stock rev limiter is 6800rpm, and aftermarket chips raise it to 7200, but power has dropped off by then on stock turbos.

I know some aftermarket ecu and chips raise the rev limit but some also remove this limit.

 

 

Hi Jaff i will be running a simular set up to you.

wiseco pistons

Tomie 260 cams with solid lifters and springs

ACL bearings (white metal Austrailian)

Garrett GT28R tubs

Pentroof (copy) manifolds (not ebay)

PE twin filters

ETC

But i am only going to up the rev limit to 8000,using the AEM.

I also have 2 EUAGO gauges and wideband sensors to warn me if things start to go wrong.

I also have Defi gauges oil press,water temp,boost,and oil temp.

In fact its getting so clutterd i have now had to get a 3 piller pod.

Edited July 6, 200817 yr by stevemochan

stick to the 9k rev counter. You will not see 9k on your setup. You'll want solid lifters and cams that are setup to make power that high in the rev range. The turbos will fall off power before then.

 

what setup are you refering to? as my engine has blown and im currently rebuilding it to a different spec. including bigger turbos.

 

New spec is:

 

Wiseco pistons 88mm

Eagle Rods

JWT 500 Race Cams 272/.385" 229@.050"+4 DEG ADV ON EX LC.

JWT Heavy Duty Valve Springs

Titanium Retainers

Ferrea 1 mm O.S. Valves

Z1 Intake & Exhaust Bronze Valve Guides

Z1 Viton Valve Stem Seals

ARP Bolts

Power Enterpirse 850cc injectors

300 degree fuel rails

Garret GT3071R Turbos

Tomei Adjustable Exhaust Cam Gear

Tomei Adjustable Intake Cam Gear

Mike Smith manifolds

SZ 3" down pipes

Labree 3" System with X pipe

Aem Engine management

head work/crank work

Z1 twin filter kit

 

Plus other bits, but the above relevent to the engine ish

Edited July 6, 200817 yr by jaffaZ32

Hi Jaff i will be running a simular set up to you.

wiseco pistons

Tomie 260 cams with solid lifters and springs

ACL bearings (white metal Austrailian)

Garrett GT28R tubs

Pentroof (copy) manifolds

PE twin filters

ETC

But i am only going to up the rev limit to 8000,using the AEM.

I also have 2 EUAGO gauges and wideband sensors to warn me if things start to go wrong.

I also have Defi gauges oil press,water temp,boost,and oil temp.

In fact its getting so clutterd i have now had to get a 3 piller pod.

 

Nice...

 

I was going to go for Solid lifters but was told they only worked with the Tomie cams. I had already bought the JWT 500 cams.

 

I'm not sure what bearings are being used yet, left that for Thor to decide.

what setup are you refering to? as my engine has blown and im currently rebuilding it to a different spec. including bigger turbos.

 

New spec is:

 

Wiseco pistons 88mm

Eagle Rods

JWT 500 Race Cams 272/.385" 229@.050"+4 DEG ADV ON EX LC.

JWT Heavy Duty Valve Springs

Titanium Retainers

Ferrea 1 mm O.S. Valves

Z1 Intake & Exhaust Bronze Valve Guides

Z1 Viton Valve Stem Seals

ARP Bolts

Power Enterpirse 850cc injectors

300 degree fuel rails

Garret GT3071R Turbos

Tomei Adjustable Exhaust Cam Gear

Tomei Adjustable Intake Cam Gear

Mike Smith manifolds

SZ 3" down pipes

Labree 3" System with X pipe

Aem Engine management

head work/crank work

Z1 twin filter kit

 

Plus other bits, but the above relevent to the engine ish

 

Oh and to add to that, i'm also still deciding if i should keep the stock cam gears to keep the VTC or to go with the Tomie adjustables i have. Not sure what to do on that one still. Z1 have realised uprated VTC cam gears which would be my other option over the adjustables.

what setup are you refering to? as my engine has blown and im currently rebuilding it to a different spec. including bigger turbos.

 

New spec is:

 

Wiseco pistons 88mm

Eagle Rods

JWT 500 Race Cams 272/.385" 229@.050"+4 DEG ADV ON EX LC.

JWT Heavy Duty Valve Springs

Titanium Retainers

Ferrea 1 mm O.S. Valves

Z1 Intake & Exhaust Bronze Valve Guides

Z1 Viton Valve Stem Seals

ARP Bolts

Power Enterpirse 850cc injectors

300 degree fuel rails

Garret GT3071R Turbos

Tomei Adjustable Exhaust Cam Gear

Tomei Adjustable Intake Cam Gear

SZ 3" down pipes

Labree 3" System with X pipe

Aem Engine management

head work/crank work

 

Plus other bits, but the above relevent to the engine ish

 

Yeh ive got the above except the oversized valves and ive gone for Sard 850cc injectors with the Border fuel rail and i had my exhaust x pipe and downpipes coustom built by Leon at Alunox.

What manifold have you decided to go for?

what setup are you refering to? as my engine has blown and im currently rebuilding it to a different spec. including bigger turbos.

 

New spec is:

 

Wiseco pistons 88mm

Eagle Rods

JWT 500 Race Cams 272/.385" 229@.050"+4 DEG ADV ON EX LC.

JWT Heavy Duty Valve Springs

Titanium Retainers

Ferrea 1 mm O.S. Valves

Z1 Intake & Exhaust Bronze Valve Guides

Z1 Viton Valve Stem Seals

ARP Bolts

Power Enterpirse 850cc injectors

300 degree fuel rails

Garret GT3071R Turbos

Tomei Adjustable Exhaust Cam Gear

Tomei Adjustable Intake Cam Gear

Mike Smith manifolds

SZ 3" down pipes

Labree 3" System with X pipe

Aem Engine management

head work/crank work

Z1 twin filter kit

 

Plus other bits, but the above relevent to the engine ish

 

 

good spec, similar to mine - stick to the 9000 gauge with a rev limit of 8000 unless you want to grenade the engine

Yeh ive got the above except the oversized valves and ive gone for Sard 850cc injectors with the Border fuel rail and i had my exhaust x pipe and downpipes coustom built by Leon at Alunox.

What manifold have you decided to go for?

 

They are the Mike Smith manifolds. They are a cast design and look a lil like the stock ones.

 

Cool, they could be brothers lol.

good spec, similar to mine - stick to the 9000 gauge with a rev limit of 8000 unless you want to grenade the engine

 

Cool, the 9000 looks better i think.

 

Took a used engine down to Thor Saturday, so hopefully i may get some summer driving in it. I'm still waiting for parts to arrive though but the majority of it is here.

 

How are you getting on with yours?

Nice...

 

I was going to go for Solid lifters but was told they only worked with the Tomie cams. I had already bought the JWT 500 cams.

 

I'm not sure what bearings are being used yet, left that for Thor to decide.

 

Go with the ACL white metal bearings theyr very highly rated in the states all the big HP engines have been using them.If Thor have problems drop me a line as my local engineering shop gets them cheaper than you can get them from Aus or the States.