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RyGuy86
18th September 2007, 12:34 PM
hey kids,

I was reading a old Drift Battle the other night whilst taking the 'just got home from work dump'

and i came across an interesting article...

it talks about the 2 huchi hero 86's in the d1. Once has a standard 4agze and its noted as being "slightly boosted for realiability" and it commented on making 147kw. to me.. thats no light boostage..

how is it possible to get that much power from a sc12? a pulley kit alone couldnt do it could it??

ae86hachiroku
18th September 2007, 01:53 PM
i believe it had some 272/264 cams

RyGuy86
18th September 2007, 01:59 PM
i believe it had some 272/264 cams[/b]
and how would that also help the power???


i assume there would be an after market ecu, but in all the images i saw... it had a stock jap ecu..

ae86hachiroku
18th September 2007, 02:27 PM
lol your kidding me right?
how does a cam help give a engine power.
time to go back to school.....

verm69
18th September 2007, 03:59 PM
http://auto.howstuffworks.com/camshaft.htm

:2thumbs:

RobertoX
18th September 2007, 04:29 PM
hey kids,

I was reading a old Drift Battle the other night whilst taking the 'just got home from work dump'

and i came across an interesting article...

it talks about the 2 huchi hero 86's in the d1. Once has a standard 4agze and its noted as being "slightly boosted for realiability" and it commented on making 147kw. to me.. thats no light boostage..

how is it possible to get that much power from a sc12? a pulley kit alone couldnt do it could it??[/b]

for starters we arent kids lol

and huchi is HACHI

but


small front mount, pulley kit, quality exhaust, and an aftermarket ecu and yeah


note that power may not be at the wheels

Konakid
18th September 2007, 04:30 PM
http://auto.howstuffworks.com/camshaft.htm

:2thumbs:[/b]

OMG Fking pwn3d

darkon
18th September 2007, 04:47 PM
its funny because back when i was in primary school i accessed that exact article to learn about how cams work hahaha. yeah man its what an extra 50 hp just raise the boost a bit and neaten things up it shouldnt be too hard to do

verm69
18th September 2007, 04:52 PM
yup :)

thats where i first learned about how engines work :lol:

it's a great site... easy to understand

RyGuy86
18th September 2007, 06:52 PM
^^^ cheers guys,

i should have worded my question better. I know how cams work.

What i dont understand is the different between a stock one.. and say a 272 degree cam and a 304 degree etc.

darkon
18th September 2007, 06:53 PM
i reckon lol. altho putting the "tires" article under "options and accessories" was kinda off-putting :P

edit: ryguy 272 is open for 272 degrees. 304 is open for 304 degrees. 272 i think is about ur standard s13 camshaft and 304 will pretty much have your car idling like a rotory

RobertoX
18th September 2007, 07:49 PM
4age stock is 240 (big port)

RyGuy86
19th September 2007, 07:00 PM
4age stock is 240 (big port)[/b]
what are stock 4agze cams? i assume they are less than 4age.. but by how much???



would it be safe to assume it would be a good upgrade to put NA cams into a ZE? like putting Sr20NA cams into a SR20DET?

ghetto ke
19th September 2007, 07:08 PM
You maybe able to use a 20V Exhaust Cam (8-Valve side) which are 250 degree (7.6mm lift) over Big Port Cam 240 (7.5mm lift)
But I'm not 100% sure if you can use it on inlet side too? I have heard of this being done but never seen it for myself...

SLO-030
20th September 2007, 06:44 PM
20v exhaust cam can only be used for intake side. As 20v dizzies are at the back of the motor and dont have the drive for the dizzy on the front for a normally GE/GZE. Also theres abit of mechaning needed to fit 20v cams in. Its only in the jorunals but they have to be spot on with measurements.

Alot of people have done the ol' big port cam into the GZE and have not gotten very good results.

Id say go to a 264degree cam with no more the 8.1mm lift as a max with a GZE (boost) can go bigger but the lower and mid range torques are affected.

In saying 264degree means that the valve is open for 264degrees of ONE full rotation of the crank shaft which is 720 degrees. 8.1mm lift meaning that the valve is openned 8.1mm off of its seat at max lift (it wont be open at 8mm the whole 264degree though)

It seem pretty easy to get 150kw at the flywheel from a GZE.

Small upgrade in cams, boost, small intercooler with the shortest piping, good flowing exhaust of 2.25-2.5" and AFTER MARKET ECU

Stock they make a min of 110kw at the flywheel so cant be hard

RyGuy86
5th October 2007, 11:28 AM
Okay kids..

now i need more information

does anyone know what size stock 4agze cams are?? eg 240degree???

I have access to a set of standard 4ag cams... will changing them help????


i assume yes...

also have the new intercooler/and microtech on the way.

verm69
5th October 2007, 12:20 PM
only change them if they're big port... this is a reasonably popular mod... heck, i'm doing it! :)

Lost Prophet
5th October 2007, 12:27 PM
The microtech will help as far as top end

From what others say about the 5500 drop off of power, with the microtech i dont get that at all

From what i've read its the knock sensor that stops the engine from reaching its full potential.

My microtech doesn't use the knock sensor so it doesn't inhibit the power.

When the engine was last dynoed which was in the previous car, an AE82 it had 164 fwhp, i dont know what it has now as it needs a tune.

verm69
5th October 2007, 12:56 PM
stock ZE cams are 232 degrees and 7.1 lift... check it!


http://www.billzilla.org/4agstock.htm


good old bill zilla

Hen is a total nutcase
5th October 2007, 01:09 PM
GE cams = GZE cams for any given year (possibly excluding AW11 ZE, but I'm a little hazy there).

Also be careful, not all bigports came with "bigport" cams. It's easy to check the lift with a set of verniers though.

chapl
5th October 2007, 01:17 PM
get your cams reground to a 264?

RyGuy86
5th October 2007, 01:21 PM
get your cams reground to a 264?[/b]


too much for turbo or ze i would assume...

Hen is a total nutcase
5th October 2007, 02:45 PM
You assume wrong. I just fitted a new ZE with 267?? degree cams. Not retuned yet, ignition untimed, cams untimed it already pulls harder over 4 than previously. No noticeable loss of bottom end, though as I said it's all pretty rough right now.

Hen

RyGuy86
5th October 2007, 03:14 PM
You assume wrong. I just fitted a new ZE with 267?? degree cams. Not retuned yet, ignition untimed, cams untimed it already pulls harder over 4 than previously. No noticeable loss of bottom end, though as I said it's all pretty rough right now.

Hen[/b]
^^^ Well there you go! no cams are too big!

I got a set of 240 degree cams to test! they are still bigger than the standard 232! :)


Cheers HEN! always good for advice!