What Can The 25 Head Rev To

[R31Nismoid]

Yeah I've been hearing similar whispers from perhaps mutual sources, but that's been 12 months or so and still nothing

Be a nice option if it does come up for ~2k

Would sell a stupid amount of them just on a bang for buck basis.

[Simon-S14]

Ah come on Simon you know that 370 is @ hubs (AMM's inflated Example 1 of 70rwkw inflated figures) and is closer 320rwkw like the 10 similar setups.

Anyways Noel - Why don't you just have an adaptor plate made up for the NEO? People have done it before (copies of the Blitz one).

You might wanna drop a PM to "Adz", owner of the wideboy 32 gts-t/stroker. I know he had at least one made... Perhaps there was a spare or a file you could get it redone from?

That'd work out in overall terms maybe 4-5k cheaper than going v-cam. Obviously v-cam is still better but it's a money for gain type of scenario and how far you going to go. There is always a (fine)line somewhere LOL... I did it too

400 was at ammrr's hub dyno with no temp correction. 370 with temp correction mode which brings it in lineball with rollers and is what trent from Status uses. get your facts right. it certaily distroys 320 rwkw set ups thats for sure

[Simon-S14]

fwiw i'm persuing the ITB route also.. am getting a mate to CAD me up an adaptor design. might be willing to make copies for a much cheaper price then most

[Supa Steve]

Throwing ideas out atm in regard to an engine I am planning. My original idea was to run a 26 head with HKS vcam but if the 25 head with the right springs etc can rev hard enough on hydro lifters it would be a more cost effective option.

WWhat sort of revs have you seen from a hydraulic lifter 25 head. I am thinking i need to get to around 9000 rpm to achieve the desired result.

Mate id suggest you get in contact with Paul at Red R Racing as he sent me a text the other day saying that they have their custom RB26 VCS head sorted. Looks like it may suit your needs perfectly.

[Legionnaire]

Out of curiosity - what mods are required to make NEO head run safely at 9000 rpm? Springs? anything else? 

Is there a possibility for clearence adjusting shims to jump off their positions at revs this high?

Edited March 28, 2011 by Legionnaire

[Simon-S14]

you'd need cams that flow, springs to suit and maybe stainless valves although i have a feeling that one probably isnt needed.

highly doubt the shims will be going anywhere

[Harey]

Ah come on Simon you know that 370 is @ hubs (AMM's inflated Example 1 of 70rwkw inflated figures) and is closer 320rwkw like the 10 similar setups.

That comparison is not fair as the Dynapack hub dyno is using STP correction which also inflates figures. Theres a few dynos on here with the fact they have STP correction turned on blanked out from the dynosheet posted. I dont care but when its convincing people buying turbos to change their decision its a bit wrong IMO.

Examples I have seen are 268rwkw -> 280rwkw, 308rwkw -> 325rwkw etc

[R31Nismoid]

That comparison is not fair as the Dynapack hub dyno is using STP correction which also inflates figures. Theres a few dynos on here with the fact they have STP correction turned on blanked out from the dynosheet posted. I dont care but when its convincing people buying turbos to change their decision its a bit wrong IMO.

Examples I have seen are 268rwkw -> 280rwkw, 308rwkw -> 325rwkw etc

Have a look @ all the graphs provided by that same mob. They are ALL in STP :merli:

he results are claimed incorrectly as rwkw and people are being wrongly mislead by thinking it is rwkw, end of story.

I totally agree RE: convincing people to buy things, or show results and then have it blanked out or claimed as something it's not. It's very wrong, but unfortunately people sometimes don't know better and when you do pull people up on it - they get all stroppy about it

[rob82]

fwiw i'm persuing the ITB route also.. am getting a mate to CAD me up an adaptor design. might be willing to make copies for a much cheaper price then most

Whats the point?

[Simon-S14]

Have a look @ all the graphs provided by that same mob. They are ALL in STP :merli:

he results are claimed incorrectly as rwkw and people are being wrongly mislead by thinking it is rwkw, end of story.

I totally agree RE: convincing people to buy things, or show results and then have it blanked out or claimed as something it's not. It's very wrong, but unfortunately people sometimes don't know better and when you do pull people up on it - they get all stroppy about it

maxing out a z32 afm at 5 volts on full load full boost doesnt equate to 320 rwkw does it

[SimonR32]

Have a look @ all the graphs provided by that same mob. They are ALL in STP :merli:

he results are claimed incorrectly as rwkw and people are being wrongly mislead by thinking it is rwkw, end of story.

I totally agree RE: convincing people to buy things, or show results and then have it blanked out or claimed as something it's not. It's very wrong, but unfortunately people sometimes don't know better and when you do pull people up on it - they get all stroppy about it

As much as I hate to agree with Nazi Nismoid, he would be correct on this one. My car made 410rwkw with STP correction on and 360rwkw on the same tank of fuel on a dyno dynamics roller! But then again I was never it denial that this was going to happen haha

and my results are backed up with a fairly stout 132.5mph on the black dyno...

PS. On topic my stock RB25 head is happy revving to a limiter of 8100rpm

Edited March 29, 2011 by SimonR32

[R31Nismoid]

Weren't you going to up it to 8500?

I'm positive I saw that in a thread

[FineLine]

Weren't you going to up it to 8500?

I'm positive I saw that in a thread

Yeah but he would need to return everything back to stock to do that.

[R31Nismoid]

[SimonR32]

Weren't you going to up it to 8500?

I'm positive I saw that in a thread

what isn't is making enough power yet? Haha

fineline, missing the context of your post... Are you trying to imply/suggest my motor isn't stock?

[rob82]

Most Z32 top out at 1350Kg/hr which is around 50lb/min - so around 500hp @ the engine. Which in my books is around 330rwkw.

[FineLine]

what isn't is making enough power yet? Haha

fineline, missing the context of your post... Are you trying to imply/suggest my motor isn't stock?

Nah mate, It was a sly dig at Nismoids love of all things stock. Speshly when it comes to making big powahhhh,

Ash got the gist of it. (insert tongue poke emoticon here)

[R31Nismoid]

LOL your humor is less subtle the older you get

[Simon-S14]

Most Z32 top out at 1350Kg/hr which is around 50lb/min - so around 500hp @ the engine. Which in my books is around 330rwkw.

real world results from many users suggest otherwise tho

[SimonR32]

Nah mate, It was a sly dig at Nismoids love of all things stock. Speshly when it comes to making big powahhhh,

Ash got the gist of it. (insert tongue poke emoticon here)

onto it now haha