OK so my car is already boosted, but its on the stock motor so now that i have had a little fun, i want to do things the right way

so here is the dilemma, either way i will be getting another motor to start fresh with either 2.3 l.o, 2.3 h.o, or 2.4

A. I can buy another 95 2.3 motor and install pistons rods, and bearings and p&p the head, and use an h.o intake manifold

b. find out what is involved in swapping to a 2.4, then upgrade it using parts from my 95 motor that i already have, like the oil pump set up and cams. then doing the pistons and rods and bearing and head work, downside to this method is i will have to get another turbo manifold made

c. which is probably the most expensive route, upgrade to an H.O motor, H.O cams, and still do all the work i would do to the 95 motor,

Im open to any other suggestions on ways to go about this, my goal is to make around 300whp, i would be happy with that, and i want it to be reliable, well as reliable as possible. when we dyno'd it last summer it made around 238whp on 10.5 psi and the tune wasnt perfect, but of course we all know 10.5 psi on a stock motor is a ticking time bomb


if it can't win a race it better win a show

you obviously know what your doing why not just find a a ecotec powered jbody hit form the rear and swap every thing over. It might be alot of work but i think the ecotec has alot more aftermarket support form hahn and not to mention there realy isnt any thing custom made to get that kind of power. just my suggestion nice car by the way

C is the best route. It is not the most expesive route. You would have less machine work in the HO motor than the 2.4 and more power




Jason
99 Z24 Supercharged
157hp/171tq - NA
190hp/170tq @ 6psi

LG0/LD9 for Life

well this is what i i would need to actually get the h.o motor and this is why i say the most expensive,

1993 scx block, $450 from quad forum guy, the block is already cleaned and checked by a machine shop, its just a bare block ready to be built
h.o cams $150
cam towers $100
crank $200 since it is differnt from the one in my 95 motor
oil pump set up $100 also different
086 head 250
timing chain housing
timing chain kit 100
rod and main bearings 100
gasket kit 150
arp head bolts 150
power steering set up, since its the pulley type
h.o intake manifold, my current turbo manifold would have to be port matched also
h.o bin file to tune

thats over $2000 for what is essentially a rebuilt stock h.o motor, then we still have to count the pistons, rods and piston rings after install we are talking close to $4000 is it really worth it, and all the prices are what someone on quad4forums is willing to sell the parts to me for. and im sure i still forgot some things too

I could get the 95 2.3 from a junk yard for 350 and rebuild it for cheaper than the h.o or a 2.4 for 400, maybe less since they are so common


if it can't win a race it better win a show

You could also get a pre 95 LO from a junk yard for the same price as the 95. Except it has a better oiling system and no ballance shafts. Also depending on the year it could have the 086 head. Besides the cams the only difference between this and an HO is .5 lower compression, which doesnt matter because you are boosted. Obviously the manifolds are different too.

Zs Z wrote:You could also get a pre 95 LO from a junk yard for the same price as the 95. Except it has a better oiling system and no ballance shafts. Also depending on the year it could have the 086 head. Besides the cams the only difference between this and an HO is .5 lower compression, which doesnt matter because you are boosted. Obviously the manifolds are different too.

sometimes.

Also, '90-92 were the 086 years.




I have no signiture

the 95 has a better oiling system and the intake cam is better but thats it when comparing it to the 2.4, no 95 2.3 l.o came with 086 heads, and the 95 also does have balance shafts, i have had 3 of them, and i will be getting 8.5:1 compression pistons anyway.

so, i may be wrong but it sem like u guys think i should just stick with the 95 motor and build that


if it can't win a race it better win a show

1fast 2point3 wrote:well this is what i i would need to actually get the h.o motor and this is why i say the most expensive,

thats over $2000 for what is essentially a rebuilt stock h.o motor, then we still have to count the pistons, rods and piston rings after install we are talking close to $4000 is it really worth it, and all the prices are what someone on quad4forums is willing to sell the parts to me for. and im sure i still forgot some things too

I could get the 95 2.3 from a junk yard for 350 and rebuild it for cheaper than the h.o or a 2.4 for 400, maybe less since they are so common

You could get another 95 motor, but you will still need most of the parts you listed in the rebuild and your still stuck with the balance shafts. I also seen the some of the same parts you listed for sale cheaper on ebay and the quadforums

1fast 2point3 wrote:the 95 has a better oiling system and the intake cam is better but thats it when comparing it to the 2.4, no 95 2.3 l.o came with 086 heads, and the 95 also does have balance shafts, i have had 3 of them, and i will be getting 8.5:1 compression pistons anyway.

so, i may be wrong but it sem like u guys think i should just stick with the 95 motor and build that

The 95 does not have the better oiling system. It has the same oiling system as the 2.4 as they both have balance shafts. The earlier 2.3's already have the better oiling system, so you don't have to pay the machine shop to modify your block. You dont "HAVE" to get a 086 head either. You can port your "456" head and not worry about the head cracking down the road. The timing chain housing from the 95 will work on a HO block




Jason
99 Z24 Supercharged
157hp/171tq - NA
190hp/170tq @ 6psi

LG0/LD9 for Life

yeah that was why i didnt put a price next to the timing chain housing, but as far as the tensioner and the plastic pieces that keep the chain in place i would replace those while its all apart. so are u suggesting i just build the 95 or go with the h.o motor build. i know people dont like the balance shafts but are they gonna stop me from making 300 whp lol. i cant use the oiling system from older motor because the oil pump drive gear is on a different spot on the crank, so i was told


if it can't win a race it better win a show

We are saying get an older 2.3 before 95...the 95s are inferior to the 88-94. Doesnt really matter if its HO or LO...it will be better than a 95. Use the 95 head, port it, and cams and you will be fine. The ballance shafts in 95 were added to make it more comfy for grannys. people dont always ditch the ballance shafts for ditching them alone....most of the high HP people on the site do it for the better oiling of the older design. The 3rd main journal is known to go on the 2.4 cus of its crappy pump setup. The HO would be the best route though.

ok but the problem i will still have is the power steering set up because everything before 95 has the pulley style setup


if it can't win a race it better win a show

1fast 2point3 wrote:ok but the problem i will still have is the power steering set up because everything before 95 has the pulley style setup

What's wrong with using the pulley style? It's not like you have the CPS to worry about like the 95' autos. If you really wanted to, though, you can just swap over your intake cam and tower and retain your stock PS pump.




I have no signiture

but if i use the 95 cams then technically it is no longer an h.o motor since im using l.o cams, after that then the only advantage would be the oiling system, and is it worth all the trouble for just that.


if it can't win a race it better win a show

If you were going to go through the trouble of rebuilding a 95 2.3 then yes its far more than worth your time to rebuild the not 95.

1fast 2point3 wrote:but if i use the 95 cams then technically it is no longer an h.o motor since im using l.o cams, after that then the only advantage would be the oiling system, and is it worth all the trouble for just that.

Modify the 2.3 HO Intake cam with the hex drive for the power steering and get one of the modified 2.4 Intake Cam Towers to use the 2.3 (35mm) lifters. I've got both setting here if your interested.






"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"

Doing the 2.4 swap is not that difficult at all, if i remember correctly, the only problems i came into was the plug for the oil light (oil sending unit?) was different, so i just used the 2.4 sensor. Also, the other one was the knock sensor, since i believe the 2.3 didn't have one, but i think i just left it not plugged in to anything, and my motor ran fine, but if you are looking for another 2.3 i have one, but it had a blown head gasket, but the head is alright , I'm willing to let go for $125, it had 120xxx when i took it out. but if you are interested just shoot me a pm or an email. I live in mid Delaware