Rebuild Thread. . . Need your Opinions
04-16-2010, 01:26 PM
#1
Rebuild Thread. . . Need your Opinions So on tuesday, my A4 took a crap and needs to be rebuilt. it hurt me so much, especially with all the work i have done to the car. i have been pretty depressed about the car, and especially it breaking down at the worse time (school and work have been horrible). so i was originally planning on rebuilding the trans and leaving it alone. but a couple of friends cheered me up and convinced me that this was a window of opportunity to make the car better. of course, i agree. 
so the car is a 2000 Z28 with almost 106k miles on it. it has almost all boltons (headers, exhaust, lid, tune). it made 330hp to the wheels on the dyno with a tune. my new plans now is to swap a manual into it. and while im at it i want to beef up the engine. the motors bottom end was rebuilt 2 years ago, with a brand new crankcase and oil pump, and bearings. the motor does make a sound when cold, like a bent rod or lifter/rocker noise. its not piston slap, im sure of that.
now, my goal is to get around 400 to 420 hp. i have been researching about cams and heads, but im still a newb in all this. and some make no sense to me. im trying to stay under $1200.
would do u guys recommend doing: swapping out the heads completely when doing the cam, or keep the heads and swap out some of the old parts (springs, pushrods, rockers)? and what kind of cam should i go with. remember this is a daily driver and i dont race much, but i would like the engine to run strong. i saw a kit offered by tsp with an ls6 heads and cam, but that was a bit too expensive. Thanks for the help guys.
so the car is a 2000 Z28 with almost 106k miles on it. it has almost all boltons (headers, exhaust, lid, tune). it made 330hp to the wheels on the dyno with a tune. my new plans now is to swap a manual into it. and while im at it i want to beef up the engine. the motors bottom end was rebuilt 2 years ago, with a brand new crankcase and oil pump, and bearings. the motor does make a sound when cold, like a bent rod or lifter/rocker noise. its not piston slap, im sure of that.
now, my goal is to get around 400 to 420 hp. i have been researching about cams and heads, but im still a newb in all this. and some make no sense to me. im trying to stay under $1200.
would do u guys recommend doing: swapping out the heads completely when doing the cam, or keep the heads and swap out some of the old parts (springs, pushrods, rockers)? and what kind of cam should i go with. remember this is a daily driver and i dont race much, but i would like the engine to run strong. i saw a kit offered by tsp with an ls6 heads and cam, but that was a bit too expensive. Thanks for the help guys.
Last edited by Yahelou; 02-16-2011 at 06:10 PM.
04-16-2010, 01:36 PM
#2
Your gonna need new rear gears if you go with the M6 and reprograming for the CPU for the speedometer to be right. I would go buy a Stage 2 4L60E tranny from one of the sponcers and a stall too! M6s kill 10 bolt rearends for sport.
04-16-2010, 01:51 PM
#4
From personal experience you won't stay under $1200 doing heads/cam. There are many other costs involved: timing chain, timing cover gasket, head/crank bolts, head gaskets, springs/locks/retainers, PR's, lifters, may upgrade the oil pump or port it, injectors now become an issue based on power goals... Not to mention a new clutch if you go m6 and all the issues that could bring. Not trying to discourage you on upgrades but $1200 is unrealistic. You could possibly stay within that range with a cam only and intake swap, then do the heads later. Just my .02
04-16-2010, 02:17 PM
#5
From personal experience you won't stay under $1200 doing heads/cam. There are many other costs involved: timing chain, timing cover gasket, head/crank bolts, head gaskets, springs/locks/retainers, PR's, lifters, may upgrade the oil pump or port it, injectors now become an issue based on power goals... Not to mention a new clutch if you go m6 and all the issues that could bring. Not trying to discourage you on upgrades but $1200 is unrealistic. You could possibly stay within that range with a cam only and intake swap, then do the heads later. Just my .02
04-16-2010, 03:31 PM
#7
you have 853 heads right? if so ditch them and get some 243's, even bone stock 243's will give you 15-20rwhp. yeah $1200 wont do the H/C swap lol i know this cause i just did it last january and if i don't add in head cost and the valve job i'm around 1500-1600
if i were you i'd look more into whats causing that knocking noise. good luck to you man!
if i were you i'd look more into whats causing that knocking noise. good luck to you man!
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04-16-2010, 04:11 PM
#8
you have 853 heads right? if so ditch them and get some 243's, even bone stock 243's will give you 15-20rwhp. yeah $1200 wont do the H/C swap lol i know this cause i just did it last january and if i don't add in head cost and the valve job i'm around 1500-1600
if i were you i'd look more into whats causing that knocking noise. good luck to you man!
if i were you i'd look more into whats causing that knocking noise. good luck to you man!
the reason im thinking about doing this is because the car is a just a daily driver. i rarely race it, so i see no point to swap heads. i just want to make sure the engine runs strong for longer.
I saw some of the head/cam kits tsp offer and those look pretty good, i might have to give them a call.
http://www.texas-speed.com/shop/cate...MID=1&catid=47
