well was wondering if i rebuilt a engine .10 over shave headswhat would be the time in a quarter mile on it stock ? and if i add a 100 shot of nitrous with some adjustments what would i be running
go out and run the car yourself. its the only real way to tell
Im a Xbox 360 fanboy...and damn proud of it!!
9's........... easy....
gotta love sarcasm
96 All motor 5 Speed Z24, Best time 15.97@86MPH
will the 2.4 block even take the .100 overbore without structural issues? why do you need it opened up that much?
if it just needs a rebuild, do a basic .020 overbore so you can reuse the pistons later, should the block fail at some point.
Have you seen the turbo wagon?
14.069 @ 98.91mph
229.1hp & 261.7ft/lbs @ 6psi
no tuning time
0.020" is the basic re-sizing for a 2.4L. A 0.1" overbore is too big. I have hear of people going as big as 0.060", but no larger.
-da chinchilla
<img src="http://registry.gmenthusiast.com/images/jiggamon/avatar15569_2.gif">
with a .1 overbore your gonna need new sleves otherwise your block will not hold anything. Thats alot of meat your getting rid of. I've heard of a .060 overbore but thats it.
I don't think he was refering to an overbore... It looks like he was talking about shaving the head .10... which he probably meant .010.
But If I remember right... the limit you can shave a 2.4 head to was .003. I may be incorrect though.
max you can shave the 2.4L head is 0.010"
-da chinchilla
<img src="http://registry.gmenthusiast.com/images/jiggamon/avatar15569_2.gif">
bore the block over until your about .001" away from hitting cooling passages and oil passages... then you can stuff some big pistons in there and run a 17:1 CR and 19 Lbs of boost... I bet you would be hitting low 24 hour quarter times....... once you finished pushing the car over the finish line....
96 All motor 5 Speed Z24, Best time 15.97@86MPH
20 over is the safest to go on the ld9. any larger, and the walls are to thin. mine is in the shop right now and i am doin 20 over but i am having custom pistons and rods made for my car and lowering the compression. if you dont lower your compression at all, you will probly blow the motor pretty quick with the 100 shot or atleast damage the head. i am lowering mine to 8:5:1 for a trubo at 15 psi.
^ you want high compression with nitrous. not low compression. .020 over the safest? no way, read more. .040 over can be done safely.
Having smaller rods made to lower compression? do it the right way with the piston. the only reason to use smaller rods is for less rotation mass.
you need to read more because everything you said is wrong.
Gilles
2.3 Ho
i think he meant how much more power will a rebuilt engine make with a .010 bore and the head resurfaced.
and the answer would be, not enough to notice. probably like 2-5 hp max with stock parts on it.
Don't steal, the government doesn't like competition
^ you want high compression with nitrous. not low compression. .020 over the safest? no way, read more. .040 over can be done safely.
no thats not right. they had a whole artical about it in hot rod magazine and telling all about the 2.4 and the 2.3. any more than 20 over is risky and if you are wanting to run all that @!#$ in there, the walls wont hold it. and if you have high compression like stock (9:5:1) and run about 100 shot, the compression is way to high for the motor. i am pretty sure on all this b/c i am rebuilding mine right now and i have reseached all thsi @!#$ for months. i do know what i am talkin about.
no you don't obviously.
92 Gtz W41 0.030 over with a 75 shot of nitrous at 11:1 compression pushing 282hp. Didn't blow ?!?!?!
Karo at 10.5:1 compression running nitrous with an oversize 2.4
What you just said about the wall being too thin is wrong. if you base yourself on the hotrod article, you'll have one looser of a quad 4. sorry but the article is wrong.
If you believe in those things, you better buy a crate engine cause you don't know enough about the 2.3.
now I know you'll argue about that but between us, I think I klnow my quad way better than you.
what are the wall going to do? implode? crack in million of pieces? it's pure
.
You can get replacement pistons for the 2.3 with a .040 over so don't tell me .020 is the max. Plus, I ran boost with a .030 over Ho.
Then you may tell that to all the Ho owner that run Nitrous and boost. maybe they should worry because the block will crack.
Like I said before, the Hot Rod article and the other article from the same kind are wrong.
As for another proof that you're wrong, why can we do a .030 overbore with the 2.6L quad 4?!?!? and run whatever we want?
show me REAL proof that I'm wrong.
if you don't believe me, ask SVC, hotbug, Scott Trend
Gilles
2.3 Ho
Quote:
if you dont lower your compression at all, you will probly blow the motor pretty quick with the 100 shot or atleast damage the head.
inccorrect....aka FALSE. you need to do more research on nitrous. nitrous engines are generally higher in compression. the reason you lower compression with boost (turbo or supercharger) is to decrease chance of detonation. also in laymans terms, you are gonna be adding so much more forced induction every time you drive it, daily driver, etc. that to be on the safe side you lower it.
with nitrous, most who drive daily, lower comp will reduce power, since nitrous more of less condenses air, a small shot might barely get you back up past what you were running stock, if you lower compression.
MFK-223 is right... higher compression with nitrous, lower with forced induction boost.
according to the ERA (Engine Rebuilders Association) industry standard for overboring upon a rebuild is .030
.1 for an overbore, i would def reccomend getting a few books on engines and learn a bit. also asking what you will run is pointless.
99red and shifted pretty much covered it. you cant tell what a car will run simply by whats done to it.
thats like asking, if i can bench 500 lbs, how many years will i last in the NFL.
