4AGZE cam question

[TRD.AE92]

Hi all, I just want to do some research, hope you all can share your experience.

1. Our 4AGZE is best use with stock Cam which is 232 degree both or use NA cam which is 240 degree?

2. How about using NA cam 240 degree for exhaust and Supercharge cam 232 degree for intake? I guess it will improved a low end power and increase high end power too... Don't shoot if I imagination was wrong. But I tried the Simulation program, it showed it improved...

3. I do notice the NA cam and the Supercharge cam lift are different... So the lift is for longer breathing time?

 

[miriguy]

1. NA cames 240 shud be better right?

2. Some SC here using both NA cams, saying that the engine performance decreases. What simulation program did u use?

 

[TRD.AE92]

1. NA cames 240 shud be better right?

2. Some SC here using both NA cams, saying that the engine performance decreases. What simulation program did u use?

1. Yes, suppose is better, but you saw both of their lift? It slightly different... With my simulator, NA cam in 4AGZE showed the power was start drop at 4,000 rpm. But with advance of exhaust timing about 5 degree, It improved high end power. So maybe because of the exhaust valve didn't properly close yet, and the intake was blow in the new oxygen already... so it create the "blow-through" situation, hence the compression inside was decrease too.

2. I do use the engine analyzer v3.2 pro (I personally go to buy it)

 

[miriguy]

your option 2, is that better?

 

[TRD.AE92]

your option 2, is that better?

I no real time experience it before. But this is my thinking only + stupid simulator program only = this ideal...

As I said, 240 degree exhaust (means it already advance the timing for 8 degree) then 232 degree intake... i think it worked better.

From the program i using now, it showed increase slightly low and high end power too...

 

[miriguy]

thats a good theory. i just downloaded the software, let me try it

---------- Post added at 01:05 AM ---------- Previous post was at 01:01 AM ----------

what if adjust advance timing for both cams?

 

[tks]

i think it should be the other way around, try it in the simulator,

240 cams on intake, stock on exhaust...

 

[TRD.AE92]

i think it should be the other way around, try it in the simulator,

240 cams on intake, stock on exhaust...

huh? Another round? ermm... Means 240 cam on intake and 232 cam on exhaust?
This seem like NA setup le... Wait i check and give u result later on...

 

[miriguy]

bro, u have a saved file for 4agze ready? mind sharing with me?

 

[tks]

precisely...just give it a shot...I have a theory...hehe

hohoho...just noticed that you're all online...any of u use MSN or YM?

 

[miriguy]

sorry for an off topic, but i have a prob looking for clutch cover for 4agze 9". any other replacements are suitable? say, evo or hilux cover? tq

---------- Post added at 01:39 AM ---------- Previous post was at 01:38 AM ----------

u can add me in YM/MSN using this id

[email protected]

 

[TRD.AE92]

precisely...just give it a shot...I have a theory...hehe

hohoho...just noticed that you're all online...any of u use MSN or YM?

I and Miriguy both using MSN too... But i gonna sleep soon my clock here was 4.40am already lo....

---------- Post added at 01:42 AM ---------- Previous post was at 01:40 AM ----------

sorry for an off topic, but i have a prob looking for clutch cover for 4agze 9". any other replacements are suitable? say, evo or hilux cover? tq

---------- Post added at 01:39 AM ---------- Previous post was at 01:38 AM ----------

u can add me in YM/MSN using this id

[email protected]

Can use the EVO clutch cover! But need to slightly mod...
Or send to BRClutch to redo the clutch pressure.

---------- Post added at 01:42 AM ---------- Previous post was at 01:42 AM ----------

bro, u have a saved file for 4agze ready? mind sharing with me?

It haven't complete...
I will send you later.

 

[miriguy]

the evo clutch cover is short of 1 hole. i cannot send to BR anymore coz it wont be in time for sunday drag, lol....

this is the case, i bought BR full race clutch but no cover, thought of using back my original halfcut cover, but scared its not so grip anymore. thats why im looking for a new cover

 

[tks]

add! [email protected] :)

wow, 4.40am, where are u...?

 

[miriguy]

he is in australia, i gotta go also now. can add me in FB also using the same ID
thanks again, go tido now lo

 

[TRD.AE92]

the evo clutch cover is short of 1 hole. i cannot send to BR anymore coz it wont be in time for sunday drag, lol....

this is the case, i bought BR full race clutch but no cover, thought of using back my original halfcut cover, but scared its not so grip anymore. thats why im looking for a new cover

if not mistaken, our supercharge clutch cover can hold up to 250hp already

 

[miriguy]

i know but the cover is almost worn out, thats why i need new cover with BR full racing clutch

 

[tks]

if not mistaken, our supercharge clutch cover can hold up to 250hp already

the stock cover?

 

[1JZtezza]

I no real time experience it before. But this is my thinking only + stupid simulator program only = this ideal...

As I said, 240 degree exhaust (means it already advance the timing for 8 degree) then 232 degree intake... i think it worked better.
--------------------
Advance or retard depends very much on using cam opening or cam peak
For a 4agze exhaust cam(232deg duration) it opens 44deg BBDC; closes 8deg ATDC; cam peak 108deg BTDC.So if you are setting 240deg cam peak (same as standard) you are actually advancing 4deg relative to exhaust cam opening.
Here advancing means open earlier and retarding means open later.

What i have found for toyota turbo engines is that they run a smaller duration cam for inlet than exhaust.It was also written elsewhere for turbo or supercharging to minimize the overlap.
Meanwhile apart from the simulation other zth forumers seems pretty quiet on cam settings and performance outcomes.

 

[TRD.AE92]

--------------------
Advance or retard depends very much on using cam opening or cam peak
For a 4agze exhaust cam(232deg duration) it opens 44deg BBDC; closes 8deg ATDC; cam peak 108deg BTDC.So if you are setting 240deg cam peak (same as standard) you are actually advancing 4deg relative to exhaust cam opening.
Here advancing means open earlier and retarding means open later.

What i have found for toyota turbo engines is that they run a smaller duration cam for inlet than exhaust.It was also written elsewhere for turbo or supercharging to minimize the overlap.
Meanwhile apart from the simulation other zth forumers seems pretty quiet on cam settings and performance outcomes.

Wow... you should be hardworking in R&D which can get this experience... Thanks...