Budget C5Z TT Build
01-29-2015, 06:20 PM
#1
Instructor
Thread Starter
Twin Turbo C5Z Build - Comp 62s - Forged LS2 - e85
Built a few TT trans ams in the past. Figured it was time to move to a different platform. Found an awesome deal I couldn't pass up on a '03 C5 Z. Bone stock. Drove it 2 weeks, and decided to start my build.
Turbo setup:
twin billet comp triplex ceramic ball bearing 6267s T4 .68 AR
tial knockoff 44mm gates
tial knockoff 50mm bovs
ebay LSx up and forward headers
cxracing cast T4 flanges
cxracing intercooler - 24"x13"x3.5"
3" downpipes to the cradle for now, then going to build full exhaust out the back.
Engine:
Forged LS2
Stock polished crank
Callies rods
Wiseco pistons
1/2" head studs
Trickflow as cast 220 heads with brian tooley hand porting
Brian Tooley stage 3 turbo cam
LS9 head gaskets
morel link bar lifters
Fuel system:
my custom 17 gallon fuel cell
Magnafuel 4303
black nylon -8 feed -8 return
all black fittings
aeromotive regulator
80lb injectors
e85
drivetrain:
MGW shifter
stock T56
stock rear
LS7 clutch
(all
ebay aluminum stock replacement radiator
stock fans
AC delete (could have made it work if I redid the lines but didn't want to hassle with it).
Keeping heat.
ABS delete
Power steering delete
Shooting for 750-800 wheel on e85 till I can afford larger injectors.
Building and tuning it myself in my garage. Got a lot of the kit setup, need the charge pipes, and down pipes done. The ebay up and forward headers fit perfect. Driver's side required a little massaging to clear the brake booster, but overall really happy with them. Going to need to relocate the alternator somewhere, haven't figured that out yet.
Will keep updates coming as I get to work on it more. May be able to make 2K, but not making any promises
Turbo setup:
twin billet comp triplex ceramic ball bearing 6267s T4 .68 AR
tial knockoff 44mm gates
tial knockoff 50mm bovs
ebay LSx up and forward headers
cxracing cast T4 flanges
cxracing intercooler - 24"x13"x3.5"
3" downpipes to the cradle for now, then going to build full exhaust out the back.
Engine:
Forged LS2
Stock polished crank
Callies rods
Wiseco pistons
1/2" head studs
Trickflow as cast 220 heads with brian tooley hand porting
Brian Tooley stage 3 turbo cam
LS9 head gaskets
morel link bar lifters
Fuel system:
my custom 17 gallon fuel cell
Magnafuel 4303
black nylon -8 feed -8 return
all black fittings
aeromotive regulator
80lb injectors
e85
drivetrain:
MGW shifter
stock T56
stock rear
LS7 clutch
(all
ebay aluminum stock replacement radiator
stock fans
AC delete (could have made it work if I redid the lines but didn't want to hassle with it).
Keeping heat.
ABS delete
Power steering delete
Shooting for 750-800 wheel on e85 till I can afford larger injectors.
Building and tuning it myself in my garage. Got a lot of the kit setup, need the charge pipes, and down pipes done. The ebay up and forward headers fit perfect. Driver's side required a little massaging to clear the brake booster, but overall really happy with them. Going to need to relocate the alternator somewhere, haven't figured that out yet.
Will keep updates coming as I get to work on it more. May be able to make 2K, but not making any promises
Last edited by westtexasbuff; 08-17-2015 at 12:42 PM.
01-29-2015, 07:01 PM
#3
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
Posts: 28,846
Received 1,762 Likes
on
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ttt
Good luck on a c5 TT budget build.
01-29-2015, 08:31 PM
#4
Instructor
Thread Starter
I sense sarcasm but not sure why... I have 14k into the build including the cost of the car, and I don't have anything else to buy except material for the downpipes.
I'm building everything myself and tuning it as well, so maybe that's where your confusion lies. It's not expensive to build a turbo kit when you do it all from scratch yourself instead of having someone else build it for you.
I'm building everything myself and tuning it as well, so maybe that's where your confusion lies. It's not expensive to build a turbo kit when you do it all from scratch yourself instead of having someone else build it for you.
01-29-2015, 08:51 PM
#5
I do not think 80's and the 340's are going to get it done for 800 whp. I am going through an auto and figured I need at least 118 lb injectors for E85, most likely going 160's and also have an aeromotive eliminator in tank set up that will only make it to about 950 on E per aeromotive. Them mani's are sweet tho, would love to have my turbo's up top like that. Good luck
01-29-2015, 09:09 PM
#6
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
Posts: 28,846
Received 1,762 Likes
on
1,529 Posts
I sense sarcasm but not sure why... I have 14k into the build including the cost of the car, and I don't have anything else to buy except material for the downpipes.
I'm building everything myself and tuning it as well, so maybe that's where your confusion lies. It's not expensive to build a turbo kit when you do it all from scratch yourself instead of having someone else build it for you.
I'm building everything myself and tuning it as well, so maybe that's where your confusion lies. It's not expensive to build a turbo kit when you do it all from scratch yourself instead of having someone else build it for you.
I dont see the 80-lb inj working on the e85 at that level.Trans am rear end cheap to a vette rear end cost to hold power, trans cheap also to a trans that goes into a vette.
Car looks great man for the $$ you have in it.
Last edited by robert miller; 01-29-2015 at 09:15 PM.
01-29-2015, 09:32 PM
#7
Melting Slicks
Looking good. A few Q's...
Any more build pictures?
Did you build the collector to T4 flange?
Where are the wastegates going to be?
Are you relocating the ECBM?
Gravity drain?
Keep the updates rolling.
Any more build pictures?
Did you build the collector to T4 flange?
Where are the wastegates going to be?
Are you relocating the ECBM?
Gravity drain?
Keep the updates rolling.
01-29-2015, 09:40 PM
#8
I sense sarcasm but not sure why... I have 14k into the build including the cost of the car, and I don't have anything else to buy except material for the downpipes.
I'm building everything myself and tuning it as well, so maybe that's where your confusion lies. It's not expensive to build a turbo kit when you do it all from scratch yourself instead of having someone else build it for you.
I'm building everything myself and tuning it as well, so maybe that's where your confusion lies. It's not expensive to build a turbo kit when you do it all from scratch yourself instead of having someone else build it for you.
The expense to do things on one's own is different, not necessarily cheaper.
01-29-2015, 11:21 PM
#11
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
Posts: 28,846
Received 1,762 Likes
on
1,529 Posts
01-30-2015, 08:34 AM
#13
Le Mans Master
Built a few TT trans ams in the past. Figured it was time to move to a different platform. Found an awesome deal I couldn't pass up on a '03 C5 Z. Bone stock. Drove it 2 weeks, and decided to start my build.
Turbo setup:
twin billet comp triplex ceramic ball bearing 6767s T4 .68 AR
tial knockoff 44mm gates
tial knockoff 50mm bovs
ebay LSx up and forward headers
cxracing cast T4 flanges
cxracing intercooler - 24"x13"x3.5"
3.5" downpipes to the cradle for now, then going to build full exhaust out the back.
Engine:
stock bottom
ebay head studs
LS9 gaskets
stock 243 heads
BTR turbo cam
BTR .660 lift springs
Fuel system:
my custom dual in tank aeromotive stealth 340s
black nylon -8 feed -8 return
all black fittings
aeromotive regulator
80lb injectors
e85
drivetrain:
MGW shifter
stock T56
stock rear
LS7 clutch
ebay aluminum stock replacement radiator
stock fans
AC delete (could have made it work if I redid the lines but didn't want to hassle with it).
Keeping heat.
ABS delete
Power steering delete
Shooting for 750-800 wheel on e85. Hoping the motor can live a while at this power level till I can afford a built motor for it.
Building and tuning it myself in my garage. Got a lot of the kit setup, need the charge pipes, and down pipes done. The ebay up and forward headers fit perfect. Driver's side required a little massaging to clear the brake booster, but overall really happy with them. Going to need to relocate the alternator somewhere, haven't figured that out yet.
Will keep updates coming as I get to work on it more. May be able to make 2K, but not making any promises
Turbo setup:
twin billet comp triplex ceramic ball bearing 6767s T4 .68 AR
tial knockoff 44mm gates
tial knockoff 50mm bovs
ebay LSx up and forward headers
cxracing cast T4 flanges
cxracing intercooler - 24"x13"x3.5"
3.5" downpipes to the cradle for now, then going to build full exhaust out the back.
Engine:
stock bottom
ebay head studs
LS9 gaskets
stock 243 heads
BTR turbo cam
BTR .660 lift springs
Fuel system:
my custom dual in tank aeromotive stealth 340s
black nylon -8 feed -8 return
all black fittings
aeromotive regulator
80lb injectors
e85
drivetrain:
MGW shifter
stock T56
stock rear
LS7 clutch
ebay aluminum stock replacement radiator
stock fans
AC delete (could have made it work if I redid the lines but didn't want to hassle with it).
Keeping heat.
ABS delete
Power steering delete
Shooting for 750-800 wheel on e85. Hoping the motor can live a while at this power level till I can afford a built motor for it.
Building and tuning it myself in my garage. Got a lot of the kit setup, need the charge pipes, and down pipes done. The ebay up and forward headers fit perfect. Driver's side required a little massaging to clear the brake booster, but overall really happy with them. Going to need to relocate the alternator somewhere, haven't figured that out yet.
Will keep updates coming as I get to work on it more. May be able to make 2K, but not making any promises
very nice work! considering the cost of a kit you are WAY cheaper and this looks really good
where did you get the 90 deg elbows welded onto the headers?
keep up the good work. for a budget short block build you might consider what I did
got a free 4.8 short block. bought some decent lunati rods and 4.0 crank brand new for 1100
wiseco pistons 3.84 bore (80 over) 250 almost new pistons
I have about 2k into a build that will take up to 1k hp pretty easy
I went with the fic 127 bosch injectors that should take me to about 900 or so on E85
If you already have the injectors and don't want to spring for bigger consider direct port meth to cover the fueling shortfall
very nice work!
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BABYBUGY (06-07-2019)
01-30-2015, 05:09 PM
#15
Burning Brakes
Wow, if you're only 14k in so far for what you have you got one hell of a deal on that car 
No A/C, No PS, No ABS... race car
Cool looking build. Sub'd for more pics as you go along as well.
Looks like the cast stainless CX-racing T4 elbows welded directly on collector instead of v-band connection?
Can't tell if there is any bracing yet or will be for the turbos. In any event, the stock rubber motor mounts are ****. I would go solid or poly or the engine is going to torque over hard in the bay.
I wouldn't count on that LS7 clutch holding your immediate power goals though. Anticipate a clutch swap soon unless you turn the boost down to let it live a while. Since you said you've done some similar work on F bodies, i'm sure you know this.
PS. I've got a set of bosch racing 127's i'm looking to get rid of if you're interested
No A/C, No PS, No ABS... race car
Cool looking build. Sub'd for more pics as you go along as well.
Looks like the cast stainless CX-racing T4 elbows welded directly on collector instead of v-band connection? Can't tell if there is any bracing yet or will be for the turbos. In any event, the stock rubber motor mounts are ****. I would go solid or poly or the engine is going to torque over hard in the bay.
I wouldn't count on that LS7 clutch holding your immediate power goals though. Anticipate a clutch swap soon unless you turn the boost down to let it live a while. Since you said you've done some similar work on F bodies, i'm sure you know this.
PS. I've got a set of bosch racing 127's i'm looking to get rid of if you're interested
01-31-2015, 09:41 AM
#18
Melting Slicks
That is a nice looking build
I do have to agree that 80lb injectors will never work with that power and E85. I have larger than that with close power and 93.
Also don't think that stock block is going to last long with 800rwhp. Ive seen them go with 550-600. At least it is Z06 stuff.
Like they said, keep posting photos and updates.
I do have to agree that 80lb injectors will never work with that power and E85. I have larger than that with close power and 93.
Also don't think that stock block is going to last long with 800rwhp. Ive seen them go with 550-600. At least it is Z06 stuff.
Like they said, keep posting photos and updates.
02-02-2015, 10:43 AM
#19
Instructor
Thread Starter
I do not think 80's and the 340's are going to get it done for 800 whp. I am going through an auto and figured I need at least 118 lb injectors for E85, most likely going 160's and also have an aeromotive eliminator in tank set up that will only make it to about 950 on E per aeromotive. Them mani's are sweet tho, would love to have my turbo's up top like that. Good luck
Buddy didnt mean nothing bad at all in the statement. Just these are bad cars, if you put big are good size RWHP in them every part around it will start breaking on a man. I dont see the 80-lb inj working on the e85 at that level.
Trans am rear end cheap to a vette rear end cost to hold power, trans cheap also to a trans that goes into a vette.
Car looks great man for the $$ you have in it.
I dont see the 80-lb inj working on the e85 at that level.Trans am rear end cheap to a vette rear end cost to hold power, trans cheap also to a trans that goes into a vette.
Car looks great man for the $$ you have in it.
very nice work! considering the cost of a kit you are WAY cheaper and this looks really good
where did you get the 90 deg elbows welded onto the headers?
keep up the good work. for a budget short block build you might consider what I did
got a free 4.8 short block. bought some decent lunati rods and 4.0 crank brand new for 1100
wiseco pistons 3.84 bore (80 over) 250 almost new pistons
I have about 2k into a build that will take up to 1k hp pretty easy
I went with the fic 127 bosch injectors that should take me to about 900 or so on E85
If you already have the injectors and don't want to spring for bigger consider direct port meth to cover the fueling shortfall
very nice work!
where did you get the 90 deg elbows welded onto the headers?
keep up the good work. for a budget short block build you might consider what I did
got a free 4.8 short block. bought some decent lunati rods and 4.0 crank brand new for 1100
wiseco pistons 3.84 bore (80 over) 250 almost new pistons
I have about 2k into a build that will take up to 1k hp pretty easy
I went with the fic 127 bosch injectors that should take me to about 900 or so on E85
If you already have the injectors and don't want to spring for bigger consider direct port meth to cover the fueling shortfall
very nice work!
Wow, if you're only 14k in so far for what you have you got one hell of a deal on that car
No A/C, No PS, No ABS... race car
Cool looking build. Sub'd for more pics as you go along as well. Looks like the cast stainless CX-racing T4 elbows welded directly on collector instead of v-band connection?
Can't tell if there is any bracing yet or will be for the turbos. In any event, the stock rubber motor mounts are ****. I would go solid or poly or the engine is going to torque over hard in the bay.
I wouldn't count on that LS7 clutch holding your immediate power goals though. Anticipate a clutch swap soon unless you turn the boost down to let it live a while. Since you said you've done some similar work on F bodies, i'm sure you know this.
PS. I've got a set of bosch racing 127's i'm looking to get rid of if you're interested
No A/C, No PS, No ABS... race car
Cool looking build. Sub'd for more pics as you go along as well.
Looks like the cast stainless CX-racing T4 elbows welded directly on collector instead of v-band connection? Can't tell if there is any bracing yet or will be for the turbos. In any event, the stock rubber motor mounts are ****. I would go solid or poly or the engine is going to torque over hard in the bay.
I wouldn't count on that LS7 clutch holding your immediate power goals though. Anticipate a clutch swap soon unless you turn the boost down to let it live a while. Since you said you've done some similar work on F bodies, i'm sure you know this.
PS. I've got a set of bosch racing 127's i'm looking to get rid of if you're interested
I will be upgrading to a RPS triple after the LS7 goes. I'm just trying to get it on the road and see how far I can push it on these parts.That is a nice looking build
I do have to agree that 80lb injectors will never work with that power and E85. I have larger than that with close power and 93.
Also don't think that stock block is going to last long with 800rwhp. Ive seen them go with 550-600. At least it is Z06 stuff.
Like they said, keep posting photos and updates.
I do have to agree that 80lb injectors will never work with that power and E85. I have larger than that with close power and 93.
Also don't think that stock block is going to last long with 800rwhp. Ive seen them go with 550-600. At least it is Z06 stuff.
Like they said, keep posting photos and updates.
No updates so far, but looking to finish the kit this week if time permits. Here's some more pics as requested... Thinking I may have to go with an electric waterpump, and relocate the alternator to lower passenger side (alternator being the only accessory). If not, it'd be a tight fit to try to get the downpipe in with the tensioner in the way.
