Need help moddin motor!!!
Thread Starter
Teching In
Joined: Dec 2007
Posts: 6
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From: Williamsport,IN
Need help moddin motor!!! hey guys, i've got an '02 Z28 auto with only 44K on it. Ive already shredded 3 4l60e trans', broke my stock gear and posi, and my motor is startin to have a top end tick to it, 
so my whip is currently under the knife. Im goin to a th400 trans, TCI 4000 stahl, auburn posi, moser axles and 4:56, full length headers, offroad y-pipe, flowmaster catback, 28" radials, and im wantin to do a cam swap while its out. Ive done some research and talked to some buddies. Im still not sure whether i want to stay with hydraulic roller or step-up to solid roller. Im partial to both, but would like some help. Tryin to make the most power possible with the stock bottom end. Any info would be greatly appreciated. Thanx, z28riceeater
so my whip is currently under the knife. Im goin to a th400 trans, TCI 4000 stahl, auburn posi, moser axles and 4:56, full length headers, offroad y-pipe, flowmaster catback, 28" radials, and im wantin to do a cam swap while its out. Ive done some research and talked to some buddies. Im still not sure whether i want to stay with hydraulic roller or step-up to solid roller. Im partial to both, but would like some help. Tryin to make the most power possible with the stock bottom end. Any info would be greatly appreciated. Thanx, z28riceeater 
TECH Regular
Joined: Jan 2008
Posts: 458
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From: Bellaire, TX
Is the car stock or is it modded already???? If its stock how are you blowing through trannys and rear-ends?!?!?! I love the Flowmaster cat-back on mine, it may not be the best on the market but I love the sound, the others are too raspy. I like the deep muscle car sound. From you post is sound like your lookin gto build a trailer car... TH400 w/4000 stall and 4.56 gears. You will need to run a soild-roller cam to twist the RMP's to 8000 to proberly use the 3speed tranny and that tall of a gear.
Thread Starter
Teching In
Joined: Dec 2007
Posts: 6
Likes: 0
From: Williamsport,IN
Actually its already on the car and i think it sounds good. what kinda pipes you got on your whip?
Yeah, the car was previously modded. the stock trans blew without mods. after that i had it rebuilt and put in a 3500 stahl, then blew it again. upgraded to a supposed stage 3 trans with a 4000 stahl, which lasted about a month. after the first trans went out i switched to a 4:10 gear in the stock rear. had it in for a few months before the stock posi went out, so i upgraded to an auburn posi and moser axles. and just recently my 4:10 stripped a couple teeth. So this is where im at now.
and as for the car goin on the trailer, not gona happen. its my daily driver. im not a guy to care about fuel efficiency or drivability. im just tryin t build a dependable, powerful car. i have strongly considered solid roller, but was reminded of the fact of the dificulty of gettin the valve covers off inside the car to adjust valve lash when needed.
Yeah, the car was previously modded. the stock trans blew without mods. after that i had it rebuilt and put in a 3500 stahl, then blew it again. upgraded to a supposed stage 3 trans with a 4000 stahl, which lasted about a month. after the first trans went out i switched to a 4:10 gear in the stock rear. had it in for a few months before the stock posi went out, so i upgraded to an auburn posi and moser axles. and just recently my 4:10 stripped a couple teeth. So this is where im at now.
and as for the car goin on the trailer, not gona happen. its my daily driver. im not a guy to care about fuel efficiency or drivability. im just tryin t build a dependable, powerful car. i have strongly considered solid roller, but was reminded of the fact of the dificulty of gettin the valve covers off inside the car to adjust valve lash when needed.
Let me guess.... You're running a Performabuilt tranny? If so, junk it, it's ****.
Dependable and powerful car you say? Kinda contradictory.... But anyways, if it's your DD, use a mild cam if you're set on camming it. 12 bolt rear end, th400 is too racey for a dd, get a reputable builder to beef up your 4l60e.
I would say run true duals w/ some long tubes. maybe some spray, then you've got a nice little car. stick with some 3.42s.
And don't launch your car everywhere, that's why you're blowing your **** up left and right.
Dependable and powerful car you say? Kinda contradictory.... But anyways, if it's your DD, use a mild cam if you're set on camming it. 12 bolt rear end, th400 is too racey for a dd, get a reputable builder to beef up your 4l60e.
I would say run true duals w/ some long tubes. maybe some spray, then you've got a nice little car. stick with some 3.42s.
And don't launch your car everywhere, that's why you're blowing your **** up left and right.
Thread Starter
Teching In
Joined: Dec 2007
Posts: 6
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From: Williamsport,IN
Dependable and powerful car you say? Kinda contradictory....
Yeah, i think so too.
But anyways, if it's your DD, use a mild cam if you're set on camming it.
im wantin as much power as possible. and dont wanna change it again anytime soon.
th400 is too racey for a dd, get a reputable builder to beef up your 4l60e.
not really worried bout havin somthin to racey for a DD.
I would say run true duals w/ some long tubes.
got the long tubes, not really sure what kinda pipes im goin with this time tho
maybe some spray
already lookin at some
stick with some 3.42s.
dont really like the results with 3.42's
And don't launch your car everywhere, that's why you're blowing your **** up left and right.
and yes, i think ive learned that now
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I think he is pretty dead on...solid roller for DD? Can you say valve adjustment every oil change? If you are going drag car its fine, but if you want it on the street watch how radical you're going go or else it will become more of a headache than a joy. And the flowmaster is crap if you're going for the most power, there is another 20-30 RWHP just from replacing it with a magnaflow catback.
This set up is a horrible idea for the street. TH400 with 4:56 gears? That is the worst idea for a daily driver. Solid roller? Why dont you make a poll and see if this is a good idea... Even the people with the most radical set ups on this site would say stupid idea.
I dont even want to know what RPM you would be at 60mph. And unless you had a built motor and could spin you motor really high, then you would be banging the rev limiter at the 1000ft mark.
Bad idea.
I dont even want to know what RPM you would be at 60mph. And unless you had a built motor and could spin you motor really high, then you would be banging the rev limiter at the 1000ft mark.
Bad idea.
Let me guess.... You're running a Performabuilt tranny? If so, junk it, it's ****.
Dependable and powerful car you say? Kinda contradictory.... But anyways, if it's your DD, use a mild cam if you're set on camming it. 12 bolt rear end, th400 is too racey for a dd, get a reputable builder to beef up your 4l60e.
I would say run true duals w/ some long tubes. maybe some spray, then you've got a nice little car. stick with some 3.42s.
And don't launch your car everywhere, that's why you're blowing your **** up left and right.
Dependable and powerful car you say? Kinda contradictory.... But anyways, if it's your DD, use a mild cam if you're set on camming it. 12 bolt rear end, th400 is too racey for a dd, get a reputable builder to beef up your 4l60e.
I would say run true duals w/ some long tubes. maybe some spray, then you've got a nice little car. stick with some 3.42s.
And don't launch your car everywhere, that's why you're blowing your **** up left and right.
...whats wrong with performabuilt? great sponsor, great builders, great transmissions. and great service.
i would say 3.73's for a auto car on the street then i would ditch the flowmaster if you are looking for the most hp. and for cam u might like the ms3? look at it. also might just look into a 12 bolt instead of fixin up the 10 bolt you have now
Thread Starter
Teching In
Joined: Dec 2007
Posts: 6
Likes: 0
From: Williamsport,IN
thanks for the advice. ill check the specs on that cam. ive been tryin to find a 12-bolt, havent had luck. i am losin the flowmaster. like ive said i dont kno what kinda pipes im puttin on it.
Thread Starter
Teching In
Joined: Dec 2007
Posts: 6
Likes: 0
From: Williamsport,IN
This set up is a horrible idea for the street. TH400 with 4:56 gears? That is the worst idea for a daily driver. Solid roller? Why dont you make a poll and see if this is a good idea... Even the people with the most radical set ups on this site would say stupid idea.
I dont even want to know what RPM you would be at 60mph. And unless you had a built motor and could spin you motor really high, then you would be banging the rev limiter at the 1000ft mark.
Bad idea.
I dont even want to know what RPM you would be at 60mph. And unless you had a built motor and could spin you motor really high, then you would be banging the rev limiter at the 1000ft mark.
Bad idea.
Y dont you put up a poll, and we'll se which way it goes. Its not like im runnin a marathon with the thing. and ive done the math, its not gona hit the rev limiter at the 1000ft.
