2.4l Motor Build

[springs fastest alero]

well finally wrapped this project up last week
finally got the pics from early stages of the build.
this was for a members car.
hopfully he will see this an chime in on what he thinks about the outcome of this project.
the car was very responsive when I drove it but being it wasent broke in yet we couldn't really see what it would do.
we plan on dynoing some time soon.


mods list:
weisco forged pistons
eagle forged rods
95 Q4 intake cam
93 Q4 exhaust cam
port and polished head
stainless steel valves
new springs locks and retainers
block decked .020 to raise compression
ballenced rotating assembly
UR underdrive crank pulley
APOC intake
borla exhaust

comming soon:
Q4 HO manifold and 56mm Tb
header

here are the pix

[springs fastest alero]

combustion chamber shots

[springs fastest alero]

the crank

[springs fastest alero]

the block

[springs fastest alero]

pistons and rods

[springs fastest alero]

new VS. old

[|Rev|]

very nice, how much did this cost him? (if you don't mind me asking, I want to turbo my car someday, and this seems like a good step)

[Oldsman]

nice build up. should have some good gains.

John, can you still get those cams????????

[nguyen187]

Hey John you running NA on that setup??? did you put in new rod and main bearings? and of course did you do the p&p yourself? just curious.

[Sportalero]

Originally posted by nguyen187+Aug 9 2004, 01:16 AM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (nguyen187 @ Aug 9 2004, 01:16 AM)</td></tr><tr><td id='QUOTE'>Hey John you running NA on that setup??? [/b]
<!--QuoteBegin-springs fastest alero@Aug 8 2004, 04:21 PM
block decked .020 to raise compression
[/quote]
I'm guessing that would make that a 'yes'?

[springs fastest alero]

Originally posted by Oldsman@Aug 8 2004, 07:36 PM
nice build up. should have some good gains.

John, can you still get those cams????????
every now and then
if I can find them in the local JY they are about 50 each
if not they go up
new are about 275 a piece :(

[springs fastest alero]

Originally posted by nguyen187@Aug 8 2004, 11:16 PM
Hey John you running NA on that setup??? did you put in new rod and main bearings? and of course did you do the p&p yourself? just curious.
N/A for now. trying to talk him into the gm sc kit
yeah new rod, main, ballence shaft bearings.
the reason for this build is the motor had a rod knock.
crank had to be turned 10 under.
asc did the port and polish. they are a local shop here.
takes them a while to get things done because they are so busy but its worth the wait.

[springs fastest alero]

Originally posted by |Rev|@Aug 8 2004, 05:30 PM
very nice, how much did this cost him? (if you don't mind me asking, I want to turbo my car someday, and this seems like a good step)
not sure exactly it was a piece by piece deal
some parts he bought, some I supplied, some were from the machine shop.
I want to say he spent roughly 2000-3000 on everything
gm gaskets were used up top
fel-pro on the cover and bottom. also new water pump, coolant, oil, new plugs, labor etc are in that price guess.

port and polish was 400 or so on the head. plus the valve job and all the valves, springs locks and retainers on top of that price.

this project took a while due to waiting on parts, waiting on the machine shop, an the fact I work full time outside of apoc.
but it definately paid off.
this thing gets up for a 2.4L

[FormulaNERD]

too bad all this time and money wasnt put into an ECO..... but still anxious to see the turnout.

[Final-Reality]

Where did you get the valvetrain parts from springs?

[springs fastest alero]

places I can't really recomend you go
we had tons of problems before it was right

[NATIVE]

hey guy's i'm the one with the motor build. Its n/a and probably will be
for a little while until i catch with with my $$$$$. thing runs great
even some of the little sounds the stock motor made are gone.
it gets up right from the start and pushes all the way till it shuts off.
i almost want to pay the extra just for the govna to get taken off.
already have my 2.25" carsound cat now i need to get my pacesetter
header just need a little more $$$$. then the tb,q4 mani,header and cat.
will be in. that is when i will dyno. let you guys know how it turns out.
cost was about $ 2500.00 w/o header,cat,mani and tb.

[Final-Reality]

Originally posted by springs fastest alero@Aug 22 2004, 11:24 PM
places I can't really recomend you go
we had tons of problems before it was right
*coughmantapartcough*?

[springs fastest alero]

Originally posted by Final-Reality+Aug 24 2004, 06:27 PM--></div><table border='0' align='center' width='95%' cellpadding='3' cellspacing='1'><tr><td>QUOTE (Final-Reality @ Aug 24 2004, 06:27 PM)</td></tr><tr><td id='QUOTE'> <!--QuoteBegin-springs fastest alero@Aug 22 2004, 11:24 PM
places I can't really recomend you go
we had tons of problems before it was right
*coughmantapartcough*? [/b][/quote]
yeah
I'd definately look elsewhere
either induction dynamics for the part (although expinsive i've had good luck with them)
the heads I had done locally for a 3400 took a while because of manley being behind but everything fit right.

[Final-Reality]

If you have more work needed for the TwinCam you might wanna try http://www.jbodyperformance.com/. They seem to have a lot of high-end valvetrain components as well as plenty of other stuff.

Induction Dynamics looks like they have an exellently ported head, and they claim it's one of the best flowing ones you can buy, but it's very expensive, and any other experienced shop could probably do just as well porting the restrictive TwinCam head given enough time. And I didn't know you could buy just the valvetrain from ID, either.

NATIVE, I know you got your hands full for now, but if you have a good ported head and an upgraded valvetrain, you might also want to look into some cams that are for sale on the jbodyperformance site I listed above, moving the powerband up in the RPM range should really net you better horsepower numbers. A 6500rpm redline is too low for a high performance N/A 4-cylinder.. :P
(And even the "secret cam swap" doesnt really give you a higher usable powerband, just fattens up the middle, mostly...)

[springs fastest alero]

got cams now. maybe not as good but dont think he wants to go back intot he engine.
now we are lookin at power adders :)