The great debate again.
I'm in possesion of the Manta springs, so got that covered.
But since the H.O. deals are working out for folks, I'm wondering if I should just get in on those.
I can't find the post on the spring rates, but I think its 60 stock, 74 manta, 82 h.o.
Lil car info current set up: Auto, running the 200 @ .375 profile cams int/exh
The .410 lift exhaust cam is in storage waiting to go in 'potentially' if the gurus think it will be an ok fit with the car.
I have mounts and other stuff but its irrelavant for this post.
Also, after our buddy Whitecavy's, and the once NJHK turbo mishaps, NO boost.
So, what are your thoughts guys/gals?
Esp if anyone knows the specific spring rates, post em.
I suspect our friend Mfk-223 to chime in.
Thanks,
-M
Remember....syringes go in the RED waste basket.
well GM did use the valve springs.... that should speak volumes it self.
i had .450\.430 lift cams in my GTZ with sock spring, reved to 7-8 just fine.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
Are all 086 heads considered 'H.O.'? They all should have the 80 spring rate? or is that just the W41 head?!?
-Matt
-------------------------------------------------------
no, the 086 casting was for all quad-4's from 90-92, the spring where for the LG0 package, along with the biger cams and lifters.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
I love my manta springs
Altough I havent hit my 7k rpm limit yet
Btw, Mas, are you finally getting around to getting your car put together? lol your always selling or buying parts..
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD
AUTOMATIC!!
328 HP
306 TQ
Taetsch Z24 wrote:no, the 086 casting was for all quad-4's from 90-92, the spring where for the LG0 package, along with the biger cams and lifters.
Chris
Well.. Hmm.. What is the spring rate for the stock 90-92 086 head? Anyone know?
-Matt
-------------------------------------------------------
^^^
Yup,
For real this time.
Head work stuff, intake stuff, suspension stuff, tranny stuff (waiting for TTR mount)
I'll update my reg.
-M
Remember....syringes go in the RED waste basket.
...nononononoonono. you want to ask about HO spring rates not 086 head casting.... that head was avalable on LO motors also. 086 head DOSE NOT MEEN HO.
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
I'm using .410 cams, stock springs and reving to 7,600 rpm. You'll be fine with stock springs.
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
Cool.
Thanks guys
-M
Remember....syringes go in the RED waste basket.
Skilz10179 wrote:I'm using .410 cams, stock springs and reving to 7,600 rpm. You'll be fine with stock springs.
Do you mean stock LD9, LO, HO, or something else?
As best as I can tell though.. There aren't any differences between the HO, or LO springs according to
RockAuto.com's Catalog Lookup Information In fact, that is the same spring that's used in the:
# 2.3L 138cid L4 MFI (3)
# 2.3L 138cid L4 MFI (D)
# 2.3L 140cid L4 MFI (A)
Is this true?
Thanks man, -Matt
Edited 1 time(s). Last edited Wednesday, May 23, 2007 6:46 AM
-------------------------------------------------------
I have the same springs on my ported cylinder head and HO cams. Tim @ Mantapart told me the 2.4 sports springs are fine with HO cams. One day they might see the engine
Jason
99 Z24
157hp/171tq
wheres my boost??
Hey Jason, so you have the same 2.3 springs in your ported head w/ HO cams? Do you know the spring rate of the 2.4 sports springs?
Thanks!
-Matt
-------------------------------------------------------
hahaha you're always listening Misnblu.
-Matt
-------------------------------------------------------
WhitePhatt wrote:Skilz10179 wrote:I'm using .410 cams, stock springs and reving to 7,600 rpm. You'll be fine with stock springs.
Do you mean stock LD9, LO, HO, or something else?
Modded 2.3 HO cams, stock LD9 valve springs and 7,600 rpm.
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
Thanks Skilz!! Do you know what the spring rate is on the stock LD9 valve springs by any chance? Is it higher then the stock 2.3 springs?
-Matt
-------------------------------------------------------
...hmm your right, in 1992 all Quad-4's have the same valve springs, ( i work for GM parts).... intryesting....
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
Skilz10179 wrote:WhitePhatt wrote:Skilz10179 wrote:I'm using .410 cams, stock springs and reving to 7,600 rpm. You'll be fine with stock springs.
Do you mean stock LD9, LO, HO, or something else?
Modded 2.3 HO cams, stock LD9 valve springs and 7,600 rpm.
Ok, so Skilz, you're running the 2.4 head with stock springs but using the h.o. cam towers to house the .410 cams??
Or are you using the 086 complete head but are using the LD9 springs?
I checked your profile before I would ask and says nothing about so here I am, asking.
Thanks man.
Misnblu.com
Newbie member since 1999
Thank you Dave and JBO! 
Quote:
Hey Jason, so you have the same 2.3 springs in your ported head w/ HO cams? Do you know the spring rate of the 2.4 sports springs?
No I do not have 2.3 springs. I have Mantapart's 2.4 Sports springs and valves on my ported 99-02 spec cylinder head.
I got these numbers years ago, but never verified that they are correct
HO valve springs
85 lbs seat pressure @ 1.437", 230 lbs pressure @ .430 valve lift.
95 spec 2.3L valve springs
79lbs closed and 207lbs open pressure
96-02 2.4L valve springs
55lbs closed and 133lbs open pressure
Jason
99 Z24
157hp/171tq
wheres my boost??
Taetsch Z24 wrote:...hmm your right, in 1992 all Quad-4's have the same valve springs, ( i work for GM parts).... intryesting....
Chris
I thought so too.
I was like 'HUH! Who would of thunk it!'
-Matt
-------------------------------------------------------
Misnblu wrote:Skilz10179 wrote:WhitePhatt wrote:Skilz10179 wrote:I'm using .410 cams, stock springs and reving to 7,600 rpm. You'll be fine with stock springs.
Do you mean stock LD9, LO, HO, or something else?
Modded 2.3 HO cams, stock LD9 valve springs and 7,600 rpm.
Ok, so Skilz, you're running the 2.4 head with stock springs but using the h.o. cam towers to house the .410 cams??
Or are you using the 086 complete head but are using the LD9 springs?
I checked your profile before I would ask and says nothing about so here I am, asking.
Thanks man.
I'm using a 2.4 head, 2.4 springs, 2.3 HO cams, 35mm 2.3 lifters, 2.3 exhaust cam housing, and a modified 2.4 intake cam housing.
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
Thank you Skilz, you have a PM.
Misnblu.com
Newbie member since 1999
Thank you Dave and JBO!
Quote:
HO valve springs
85 lbs seat pressure @ 1.437", 230 lbs pressure @ .430 valve lift.
95 spec 2.3L valve springs
79lbs closed and 207lbs open pressure
96-02 2.4L valve springs
55lbs closed and 133lbs open pressure
So theres 2 different valve springs you can use? I thought its just the HO's (Berreta GTZ 91'-91'). Now theres the 95 Quad springs? Or am I just reading this forum wrong (sorry, had a few beers!).
*please correct me if Im wrong!
now DIE!
95 springs work with stock 2.4l valve retainers any other 2.3l before 95 has the same springs.
To run PRE 95 2.3 springs in a ld9 you need 2.3l springs 2.3l retainers, 2.4l keepers. this is the set up i have.
To run 95 springs all you need is the 95 2.3 springs so 95 2.3 springs stock 2.4 retainers and keepers
