Death wish? 4.8 turbo build
05-25-2017, 10:53 PM
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Death wish? 4.8 turbo build Project: General
Code name: Operation Suicide
1999 Firebird V6 converted to V8
Power Plant:
2000 LR4 4.8L junkyard motor
*UPDATED* VS Racing billet C480 80/96 1.32 AR
*UPDATED* Microquirt ECU but depending on budget MS3
Rebuilt SBE
Ring gaped to .024 top and bottom
862 heads, DIY ported
ARP Head STUDs
LS9 head gasket
BTR hardened push rods
BTR .660 springs w/ titanium retainers
*UPDATED*LJMS custom grind, spinning to 7500rpms (Thank you John for helping me out)
Connecting rod bolts ARP2000
LS2 Timing chain
Bosch 2200cc Injectors running E85 or VP C85
Stock truck Manifold (probably going to shave it)
Fuel rails (looking at FAST -8 AN rails)
Trick flow SFI 25% underdrive dampener
Drive Line;
FTI 1.80 level 3 Powerglide rated to 1100hp (I assume that means 1100 crank hp
)
SFI rated Flex plate
*UPDATE* PTC 9.5" 16 blade Torque converter
custom drive shaft (Special thanks to Dusty for your knowledge)
*UPDATE* MWC Fab 9" with a Nodular 4.56 spool (rated to 1000hp) narrowed 3 inchs
Suspension:
MWC K memeber
MWC Lower A arms
MWC Double Adj lower control arms
MWC Double Adj Pan hard bar
MWC Long torque arm
BMR 1.25" drop springs front and rear
Shocks......havent decided
*UPDATED* MWC sub frame connectors (Thanks Charlie)
*UPDATED* MWC drive shaft loop ( Thanks Charlie)
Brakes:
Manual master cylinder
*UPDATE* Strange front and rear
Hurst Roll control
Fuel:
Dual AEM380lph pumps
-10 AN feed line Aeroequipt
-8 AN return Aeroequipt
Areomotive regulator
Sumped fuel cell thinking 5 gal. but not sure what material to use
Wheels and tires:
Weld RTS 15x10 5.5 bs on rears
No idea on the fronts
Tires will be drag radials and leaning towards 275s or variation there of
Safety:
MWC 10 point roll cage with added dash bar and x bar in rear
Kirkey Pro racing seat
Racecraft Fbody mounts
5 point harness
Hoping to strip car down to a 2900lbs (3250 race weight)
Where are my flaws? What are things im not considering?
Id like any input because this build is moving faster than i expected and want reassuance before i head
into major spending
Code name: Operation Suicide
1999 Firebird V6 converted to V8
Power Plant:
2000 LR4 4.8L junkyard motor
*UPDATED* VS Racing billet C480 80/96 1.32 AR
*UPDATED* Microquirt ECU but depending on budget MS3
Rebuilt SBE
Ring gaped to .024 top and bottom
862 heads, DIY ported
ARP Head STUDs
LS9 head gasket
BTR hardened push rods
BTR .660 springs w/ titanium retainers
*UPDATED*LJMS custom grind, spinning to 7500rpms (Thank you John for helping me out)
Connecting rod bolts ARP2000
LS2 Timing chain
Bosch 2200cc Injectors running E85 or VP C85
Stock truck Manifold (probably going to shave it)
Fuel rails (looking at FAST -8 AN rails)
Trick flow SFI 25% underdrive dampener
Drive Line;
FTI 1.80 level 3 Powerglide rated to 1100hp (I assume that means 1100 crank hp
)SFI rated Flex plate
*UPDATE* PTC 9.5" 16 blade Torque converter
custom drive shaft (Special thanks to Dusty for your knowledge)
*UPDATE* MWC Fab 9" with a Nodular 4.56 spool (rated to 1000hp) narrowed 3 inchs
Suspension:
MWC K memeber
MWC Lower A arms
MWC Double Adj lower control arms
MWC Double Adj Pan hard bar
MWC Long torque arm
BMR 1.25" drop springs front and rear
Shocks......havent decided
*UPDATED* MWC sub frame connectors (Thanks Charlie)
*UPDATED* MWC drive shaft loop ( Thanks Charlie)
Brakes:
Manual master cylinder
*UPDATE* Strange front and rear
Hurst Roll control
Fuel:
Dual AEM380lph pumps
-10 AN feed line Aeroequipt
-8 AN return Aeroequipt
Areomotive regulator
Sumped fuel cell thinking 5 gal. but not sure what material to use
Wheels and tires:
Weld RTS 15x10 5.5 bs on rears
No idea on the fronts
Tires will be drag radials and leaning towards 275s or variation there of
Safety:
MWC 10 point roll cage with added dash bar and x bar in rear
Kirkey Pro racing seat
Racecraft Fbody mounts
5 point harness
Hoping to strip car down to a 2900lbs (3250 race weight)
Where are my flaws? What are things im not considering?
Id like any input because this build is moving faster than i expected and want reassuance before i head
into major spending Last edited by OxTheGreat; 06-11-2017 at 03:52 AM.
05-26-2017, 07:36 AM
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05-26-2017, 09:08 AM
#6
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Ambitious.
I would probably rethink the cam, oil pan, injectors, turbo, dampener, converter, maybe even fuel system. Otherwise this will end up as one of those ridiculous builds that someone dumps way too much money into and then keeps coming back here to complain about what isn't working right.
You haven't said anything about goals or intended use.
I would probably rethink the cam, oil pan, injectors, turbo, dampener, converter, maybe even fuel system. Otherwise this will end up as one of those ridiculous builds that someone dumps way too much money into and then keeps coming back here to complain about what isn't working right.
You haven't said anything about goals or intended use.
05-26-2017, 12:06 PM
#9
id ditch the dual pumps in favor of a single magnafuel 4303, especially if youre sumping the tank.
a stock fbody oil pan will be fine, if it 60's killer you might need to over fill it
you also wont need arp rod bolts if the bottom end is stock otherwise. they wont do anything for you the stockers dont already do except possibly oval the big end of the rod when you torque them down.
a stock fbody oil pan will be fine, if it 60's killer you might need to over fill it
you also wont need arp rod bolts if the bottom end is stock otherwise. they wont do anything for you the stockers dont already do except possibly oval the big end of the rod when you torque them down.
05-27-2017, 03:52 AM
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Ambitious.
I would probably rethink the cam, oil pan, injectors, turbo, dampener, converter, maybe even fuel system. Otherwise this will end up as one of those ridiculous builds that someone dumps way too much money into and then keeps coming back here to complain about what isn't working right.
You haven't said anything about goals or intended use.
I would probably rethink the cam, oil pan, injectors, turbo, dampener, converter, maybe even fuel system. Otherwise this will end up as one of those ridiculous builds that someone dumps way too much money into and then keeps coming back here to complain about what isn't working right.
You haven't said anything about goals or intended use.
*edit* The cam was spec'd build and i trust LJMS and contrary to popular belief im not going to come running crying. Im here to learn and thus far its almost a 70/30 split 70% say my build so far has potential with proper tuning 30% have the same outlook as you. Not saying what you believe isnt valid, but this is meant to be fun and a challenge
Last edited by OxTheGreat; 05-27-2017 at 03:58 AM.
drag purposes only
05-27-2017, 03:55 AM
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id ditch the dual pumps in favor of a single magnafuel 4303, especially if youre sumping the tank.
a stock fbody oil pan will be fine, if it 60's killer you might need to over fill it
you also wont need arp rod bolts if the bottom end is stock otherwise. they wont do anything for you the stockers dont already do except possibly oval the big end of the rod when you torque them down.
a stock fbody oil pan will be fine, if it 60's killer you might need to over fill it
you also wont need arp rod bolts if the bottom end is stock otherwise. they wont do anything for you the stockers dont already do except possibly oval the big end of the rod when you torque them down.
05-27-2017, 07:56 AM
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If you do gap the rings Gap the bottom one 2k more than the top or the rings will flutter. Example, top ring 024. Bottom ring 026.
At minimum I would at least check the ring gap, especially if you are going to lean on it like you say you are.
At minimum I would at least check the ring gap, especially if you are going to lean on it like you say you are.
05-27-2017, 09:27 AM
#14
Define lean on it? Stock bottom will take everything that turbo has. I've ran an 88 and a billet S480 on 27lbs on stock ring gap and it's fine, you'll bend rods before you pinch rings on a good tune. Really nothing but heat turning it up higher, it will make a bit more boost but the gain per pound drop drastically.
05-27-2017, 09:59 AM
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Yea and if his ring gap is tighter than yours, he will not know unless he checks it. Not trying to start a pissing match with you, but it doesn't hurt to check gap if you know what you are doing.
05-27-2017, 11:19 AM
#16
If hes he's going to take the bottom end apart might as well throw some rods in it for piece of mind, quicker then doing rings and it's an actual upgrade.
05-27-2017, 03:10 PM
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My new rings are all .024. Did them myself
05-27-2017, 03:13 PM
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True it doesn't hurt to check. But my low mileage 6.0 saw 32lbs and again no issue with rings, multiple 5.3's no issue, honestly I haven't seen anyone have an issue on e85 and a good tune. You'll bend the stock rods before screwing up a piston, heck I've bent a crank before messing up a piston.
If hes he's going to take the bottom end apart might as well throw some rods in it for piece of mind, quicker then doing rings and it's an actual upgrade.
If hes he's going to take the bottom end apart might as well throw some rods in it for piece of mind, quicker then doing rings and it's an actual upgrade.
05-27-2017, 06:39 PM
#19
https://www.liljohnsmotorsports.com/...ge-ii-cam.html
If that is the cam you are considering then we have almost identical builds going together. However, I plan on using a more a conservative turbo(s), and won't be replacing the internals because I want a lower power level.
If that is the cam you are considering then we have almost identical builds going together. However, I plan on using a more a conservative turbo(s), and won't be replacing the internals because I want a lower power level.
05-27-2017, 06:48 PM
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https://www.liljohnsmotorsports.com/...ge-ii-cam.html
If that is the cam you are considering then we have almost identical builds going together. However, I plan on using a more a conservative turbo(s), and won't be replacing the internals because I want a lower power level.
If that is the cam you are considering then we have almost identical builds going together. However, I plan on using a more a conservative turbo(s), and won't be replacing the internals because I want a lower power level.