hi guys this is my first post in this section - my name is chris and i live up in canada - i have learn a great deal from ur combined knowledge and because of u and these forumns many things have gone right on my car. so thanks. now to the point.
i have wanted to do the "Secret cam swap" for a while. the problem is that i have only got the exhaust cam. i cant find the intake cam, but from what i have read it is still pretty close in specs to the stock one. i am simply wondering if it is possible to just swap out my exhaust cam. will i still notice any gains and will the car still run reliably. thank you sooo much.
You can swap out just the exhaust cam for now. If you want an HO intake cam, try either http://www.car-part.com or http://www.beretta.net. Some of the guys over at Beretta.net are always selling GTZ (Quad 4 HO) cams.
I was a retard, and now I'm permanently banned.
great stuff - thank you - will i be missing out on a bunch of hp with out the intake cam - cuz if i will only loose like 5 hp then im not sure its worth it, but at the same time while im at it..... hmmmm....
thanks again
well the higher lift and longer duration of the HO intake cam helps a bunch. but you honestly will not notice hardly any gains with the full secret cam swap without porting your head.
I was a retard, and now I'm permanently banned.
crap the intake is int the GTZ ? i walked by two of them at the junkyard today..
has anyone done the secret cam swap and can u tell me - if any - what gains to expect - im trying to decide wether it is worth it to get them installed -
i would install it myself but i dont understand any of the timming junk
thanks
198 degrees @ .050" with .354" lift for the intake ------> 97 z24 stock
200 degrees @ .050" with .360" lift for the intake ------> 2.3 1995
not a bg difference right?
187 degrees @ .050" with .346" lift for the exhaust ----------> 97 z24 stock
200 degrees @ .050" with .375" lift for the exhaust -----------> 90 2.3
bigger difference
so im not sure how this works but it looks to me like the exhaust cam is the only one "really" changed by anything so i may still get similar gains as if i did both
would i be correct in saying this?
thanks for everything
You DON"T want a HO intake cam, It doesn't have the hex drive or the Cam Position Pickup. You want the Intake cam from a 1995 2.3 LO motor.
You can swap just the Exhaust from a LO motor and be fine. Your right about the intake not making much difference.
You WILL tell a difference even WITHOUT a ported head...
"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"
^^^^^^Listen to him. You have a few problems doing the H/O cams on a 2.4. The power steering pump can actually be replaced with the 2.3 pump to make the cam work, but then you lose the cam position sensor on the housing. You would have to have that machined as well the lower portion to accept the much larger lobe.
Assuming you got it all to work I think I remember someone saying that the valves will hit the pistons. If you had a low compression turbo engine this would be a good choice paired with adjustable cam gears to take away some overlap.
you can find the 95 2.3 in cavaliers, sunfires, grand ams and I think somehting else had it. Just go for that one.
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sorry but Spottabee Racing gives some misinformation. The HO do not just slap into the 2.4 there a few issues you have to deal with and you will have to get a new cam over etc for it to work. Please give people the correct information.
I mean read this post for all you information.
http://www.j-body.org/forums/read.php?f=2&i=325404&t=325334#325404
Also you can just swap the cam
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"You can please some of the people some of the time but you can't please all the people'
all the time
thank you all for your excellent information - uve saved me alot of trouble and money
im gonna go ahead and do the exhaust swap-- thanks again!!
Well, I'll tell you I have in my Z ride 200 @ .375 intake/exhaust right now.
Basically riding on 2.3 LO cams.
Long story how th cams ended up that way....botched purchase from the org.....don't wanna get into it.
Anyhoo, I'll tell you the car def lopes a little differently.
And the kick is there from about 3K on up.
But the gf is at her mom's with the kids, so I'll take the car out for a joy ride tonight to let you know for sure.
Nice cool night.
Meantime, as for the timing and all of that. Fortunatly its not that bad..................
If you have a person that has done it before.
I helps my instaler with the install. So he did all the timing n stuff.
Basically don't attempt cam AYTHING without knowledgeable help.
There's more parts (gaskets, oil, etc.) you need besides the cams, and that's were costs sneak up on you.
-M
Remember....syringes go in the RED waste basket.
Mastin wrote:Well, I'll tell you I have in my Z ride 200 @ .375 intake/exhaust right now.
Basically riding on 2.3 LO cams.
Long story how th cams ended up that way....botched purchase from the org.....don't wanna get into it.
Anyhoo, I'll tell you the car def lopes a little differently.
And the kick is there from about 3K on up.
But the gf is at her mom's with the kids, so I'll take the car out for a joy ride tonight to let you know for sure.
Nice cool night.
Meantime, as for the timing and all of that. Fortunatly its not that bad..................
If you have a person that has done it before.
I helps my instaler with the install. So he did all the timing n stuff.
Basically don't attempt cam AYTHING without knowledgeable help.
There's more parts (gaskets, oil, etc.) you need besides the cams, and that's were costs sneak up on you.
-M
coool thanks for the great information - im just wondering about the lope - is it a steady idle still - or is it like the old muscle cars where it is all over the place gurgling and such. i like both -- im sooo excited now - cool than you all so much for the info
On mine the idle is steady.
Maybe a little loping, nothing crazy.
The sound is deeper.
Low grumble.
I'm still on factory exhaust set up too.
The brief ride was nice.
I can't punch it like I want to, to many cops, too man points on the liscense.
Still fun though.
-M
Remember....syringes go in the RED waste basket.
not to jack this post but i have been here for a year or so i think and i have been seeing Secret cam swap what the hell is it?
You've been on here a minute.
Just check out the sticky at the beging of this forum.
-M
Remember....syringes go in the RED waste basket.
Join
www.jbodyalberta.com for starters. They may be able to find you a cam. I can probably track you down a 2.3 intake cam in Regina, but I'm in Saskatoon. Might be able to get an SJCer to get it to you though. I had one for sale for MONTHS and couldn't get a buyer. Figures.
I also wouldn't recomend going through all that work to do just the exhaust cam. Be patient, and look around some more.
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Im kind of confused.. Do you need the exhaust tower with the 90 2.3 cam? Or can you use the 2.4 exhaust tower?
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD AUTOMATIC!!
328 HP
306 TQ
No you don't need to switch out the cam towers for the "2.3 LO" cams. The only time you need the 2.3 tower is if you run the 2.3 HO exhaust cam. If you want to run the HO intake cam then you have to bore the cam tower for the 2.4 to accept the 2.3 lifters AND a little clearanceing for the .410 lobes. AND modify the cam with a camshaft position sensor pad AND a hex drive in the end to drive the power steering pump for the 2.4.
"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"
^ Can you swap in the HO intake cam tower instead of machining the 2.4 tower?
(I was planning on using megasquirt, so a camshaft position sensor wouldn't be nessesary, as well as removing/relocating the power steering pump)
Also, I remember seeing in a thread that you said you've performed 3 oil-pump conversions on the 2.4, does it really cause a lot more vibrations? Would you advise it for a daily driven car?
Just one more question, have you done a 086 head swap by chance? If so, any comments regarding the swap?
Thanks for any info,
Skyler
2000 z24
1985 z28
http://www.cardomain.com/ride/825536
Sure you can do that if your not using the CPS or the power steering. As far as the oil pump swap all your doing is switching back to a 2.3 oiling system. It causes absolutely NO vibration. Although I will ALWAYS tell people to balance the rotating assembly on any motor.
"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"
Forgot about the 086 head? Haven't done it but from what I understand it will jump the stock compression to about 11.3 from 9.5/9.7.
"The FACTS are always subject to CHANGE once the TRUTH is applied"
"In the entire history of man the only stupid questions are the ones that don't get asked"
john317 wrote:No you don't need to switch out the cam towers for the "2.3 LO" cams. The only time you need the 2.3 tower is if you run the 2.3 HO exhaust cam. If you want to run the HO intake cam then you have to bore the cam tower for the 2.4 to accept the 2.3 lifters AND a little clearanceing for the .410 lobes. AND modify the cam with a camshaft position sensor pad AND a hex drive in the end to drive the power steering pump for the 2.4.
Yeah I forgot to state it was for the HO exhaust cam. So I'll need the HO cam and tower.. Got it, thanks Gary.
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD
AUTOMATIC!!
328 HP
306 TQ
