V6 Peformance Parts

[vxcalais_01]

hey mace.
i am thinking of getting roller rockers and a cam
and seen 1.9 rollers on ebay but said they are not good if you are upgrading ur cam.
wat size do u recommend if getting a cam?
or does it vary on what cam it is youre getting?
cheers

sl33per

oh n how much for the ones u recommend??

If you wanna get a Cam later, just wait for their heads package and get the 2.25 ratio rockers.

[VZnewbie]

hey mate i was interested in getting a price for the Alloytec v6 manifold insulatior plates, and where can i buy them from??
also a price on a air box and lid for the vz. cheers

[sl33per]

If you wanna get a Cam later, just wait for their heads package and get the 2.25 ratio rockers.

their heads package?? =S
what do u mean? have they got a date on releasing some sort of package? do u have an idea of what is in it or have i missed something and is already on here somewhere?

ah k, i thought when they said 1.9/98 is no good, i was thinking id need smaller, but bigger than 1.65
cheers

sl33per

[Dan VS 231]

If you wanna get a Cam later, just wait for their heads package and get the 2.25 ratio rockers.

Pretty sure youve mentioned this a couple of times. Is there a place where you get the info or where someone like myself who is interested could get some more info on this head package?

[vxcalais_01]

Pretty sure youve mentioned this a couple of times. Is there a place where you get the info or where someone like myself who is interested could get some more info on this head package?

lol.... Mace are the ones who are doing this heads and rockers package, thats why it is being discussed in here. They are the best ones to ask.

Mace, can you add some info about them for us ?

[VS_WPN]

Hey guys check out there website MACE ENGINEERING GROUP for more information and give them a call If you want to find out more about there products

[drift-it]

hi,

what sort of gains would i expect from a set of 1.9:1 rockers and a 25mm plenum spacer (or the manifold spacer) on a vt v6?
would i need new valve springs? vt has 230k on the clock so i guess they'd be getting a bit tired? thinking of a RAPTOR kit in the future also!

thanks,
zac

[holdenrocks]

hey mace, i could like to know how much will cost for twin throttle on vr v6?i might keen interest... thanks

[MACE]

Mace,

Thanks for the info and quick reply, will get back to you on that one =)

Cheers

No probs

hey mace.
i am thinking of getting roller rockers and a cam
and seen 1.9 rollers on ebay but said they are not good if you are upgrading ur cam.
wat size do u recommend if getting a cam?
or does it vary on what cam it is youre getting?
cheers

sl33per

oh n how much for the ones u recommend??

We can now supply new billet cams to suit higher ratio rockers. all you need to tell is what you want out of you car (eg daily, street/strip machine etc) and we'll be able to advise a cam accordingly The price for the cam is $550

hey mate i was interested in getting a price for the Alloytec v6 manifold insulatior plates, and where can i buy them from??
also a price on a air box and lid for the vz. cheers

The price for the manifold insulator kit at the moment is $130 and you can buy them direct from us. Our cold air intake to suit the VZ is $270

their heads package?? =S
what do u mean? have they got a date on releasing some sort of package? do u have an idea of what is in it or have i missed something and is already on here somewhere?

ah k, i thought when they said 1.9/98 is no good, i was thinking id need smaller, but bigger than 1.65
cheers

sl33per

2.25:1 ratio rockers with ported cylinder heads. If all goes well the will be on the market within 1 - 2 months.

The 1.9/1.98 are fine just giving more people options

Pretty sure youve mentioned this a couple of times. Is there a place where you get the info or where someone like myself who is interested could get some more info on this head package?

lol.... Mace are the ones who are doing this heads and rockers package, thats why it is being discussed in here. They are the best ones to ask.

Mace, can you add some info about them for us ?

More info about this product will flow through over the coming weeks. Will start up a new thread

Hey guys check out there website MACE ENGINEERING GROUP for more information and give them a call If you want to find out more about there products

That's a good site lol

[MACE]

hi,

what sort of gains would i expect from a set of 1.9:1 rockers and a 25mm plenum spacer (or the manifold spacer) on a vt v6?
would i need new valve springs? vt has 230k on the clock so i guess they'd be getting a bit tired? thinking of a RAPTOR kit in the future also!

thanks,
zac

The 1.9:1 ratio rockers will give you around 10-13kw at the rears, while a 25mm manifold insulator will increase low down torque by around 13% and increase top end power by 1-2 kws. Though the top end power isn't all that great the increase in bottom end torque is with customers shaving around .2-.3+ of their quarter mile time. Unlikle that you'll need valve springs (if your running boost that might be a different story). If you do however we can supply a set of crow springs for $175.

[MACE]

hey mace, i could like to know how much will cost for twin throttle on vr v6?i might keen interest... thanks

We don't have any more in stock, and we most likely won't be making any more

I hope this answers everyones questions for the night If you have any more please feel free to ask

Cheers
Steve

[vxcalais_01]

Steve, the new camshafts, you mentioned, up to which ratio rocker can they run ? Say for Daily and street profile ?

[MR_VX]

just wondering how much for a CNC PRECISION PORTED THROTTLE BODY & MASS AIRFLOW METER for a vx v6? ive already got CAI, k&n filter & FIT 1.9 roller rockers

[VS_WPN]

Steve, the new camshafts, you mentioned, up to which ratio rocker can they run ? Say for Daily and street profile ?

Hi vxcalais_01, Mace has cam's to suite 1.6 rocker ratio's to 2.25

[vxcalais_01]

So even the rockers 2.25, heads, cam for 2.25, what type of combination/characteristics power wise and streetability do they make ?

Many people previously used to argue no performance cams to be run with anything above 1.8. But this does not seem to be the case, when asking many different cam makers. At the end of they day there can be issues, but it seems Mace may be addressing them in the heads they may be coming out with/testing etc ???

[immortality]

So even the rockers 2.25, heads, cam for 2.25, what type of combination/characteristics power wise and streetability do they make ?

Many people previously used to argue no performance cams to be run with anything above 1.8. But this does not seem to be the case, when asking many different cam makers. At the end of they day there can be issues, but it seems Mace may be addressing them in the heads they may be coming out with/testing etc ???

i beleive the highlift cam + 1.8 rockers belief comes from the fact that when you combine high ratio rockers with a cam that has a lot of lift you run into problems with the valve stem seals. machining valve guides and using the corect springs/retainers (to prevent coil bind) would allow much greater valve lift

some numbers,

VNs1 6.909mm or 0.272" (lobe lift) x1.6 (rocker ratio)= .435" valve lift, x1.8 = .490" or x1.9 = .517" or with 2.25 = .612" valve lift

VNs2 6.43mm In. /6.48mm Ex. or .253"/.255" x1.6(rocker ratio) = .405"/.408" or x1.8 = .455"/.459" or x1.9 = .480"/.485" or x1.95 = .493"/.497" or x 1.98 = .501"/.505" or x2.25 = .569"/.573" valve lift.

VS 6.56mm/6.48mm or .258"/.255" In./Ex. x1.65 = .426"/.420 or x1.8 = .464"/.459 or x1.9 = .490"/.485" or x1.95 = .503"/.497 or x1.98 = .511"/.505" or x2.25 = .580"/.574" valve lift.

popular cam figures (so you can calculate your total valve lift with chosen rocker ratio),

wade 992a , .295" lobe lift
wade 1114a, .308" lobe lift

from what i've been told, you run into issues with stock heads at approx .520"- .540" valve lift (depending who you listen too ), so you can see that even with 1.8(buick) or 1.98 (ecotec) ratio rockers there is plenty more lift available before you run into any issues maybe Steve can confirm?

lobe lift values curtisy of gregories automotive manuals

[vxcalais_01]

immortal,

For Ecotec = Camshaft Lobe Lift Inlet - 6.56mm
Exhaust - 6.48mm (Thanks again Gregory)

When doing cam searches, when telling them i have 1.95 r-rockers, Crow, Camtech, Surecam all spec'ed cams. Only wade and Come felt the ratio was too high. Theoretically higher ratio possible is the best apparently. Camtech did recommend some machine to the heads, valve seats etc.....others said no issues, again it would have depended on what they recommended.

Looking forward to your further calcs......

[immortality]

immortal,

For Ecotec = Camshaft Lobe Lift Inlet - 6.56mm
Exhaust - 6.48mm (Thanks again Gregory)

When doing cam searches, when telling them i have 1.95 r-rockers, Crow, Camtech, Surecam all spec'ed cams. Only wade and Come felt the ratio was too high. Theoretically higher ratio possible is the best apparently. Camtech did recommend some machine to the heads, valve seats etc.....others said no issues, again it would have depended on what they recommended.

Looking forward to your further calcs......

earlier post updated

[drift-it]

hey mace,

what would give better gains?

the plenum spacer or the manifold insulator/spacer?

[MACE]

Steve, the new camshafts, you mentioned, up to which ratio rocker can they run ? Say for Daily and street profile ?

They are designed to run a higher ratio rocker such as a 1.98:1. In saying this though. I don't see why they won't work with the 2.25:1 ratio rockers either, provided there is sufficient PTV clearance.

The cams to suit are available in 210deg and 222deg duration or mixed.
Lobe seperation is 114deg
Lobe lift is .260"

In you case I would recommend the 210deg cam.

[MACE]

just wondering how much for a CNC PRECISION PORTED THROTTLE BODY & MASS AIRFLOW METER for a vx v6? ive already got CAI, k&n filter & FIT 1.9 roller rockers

Hey azzaturbo,

The throttle body is $220, while the MAF is $180 outright or $130 changeover.

[MACE]

hey mace,

what would give better gains?

the plenum spacer or the manifold insulator/spacer?

We always recommend people get the manifold insulator first then the plenum spacer.

Cheers
Steve

[MACE]

The rockers/lift won't really effect streetability it's that cam profile that's more responsible for this.

The main reason companies recommend not to run a cam with anything over 1.8:1 ratio is because of the limits of valve lift in factory valve train (max lift on an standard ecotec is .520"). Plus the valve acceleration rates as well. However the new cams we supply address these issues with the higher ratio rockers

[immortality]

The rockers/lift won't really effect streetability it's that cam profile that's more responsible for this.

The main reason companies recommend not to run a cam with anything over 1.8:1 ratio is because of the limits of valve lift in factory valve train (max lift on an standard ecotec is .520"). Plus the valve acceleration rates as well. However the new cams we supply address these issues with the higher ratio rockers

do you know what the lift imit is on stock buick heads? i'd imagine it's about the same as the ecotecs?

if so, some 1.9rockers on a standard cam might be do-able

[vxcalais_01]

Hey azzaturbo,

The throttle body is $220, while the MAF is $180 outright or $130 changeover.

Check out Ebay, Mace have some good prices going on there as well for the throttle bodies.......