Death wish? 4.8 turbo build
06-15-2017, 07:11 PM
#83
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My district manager dragged super comp and a few other classes semi pro for many years and today he was able to shed some light on a few things. I brought up how choosing a gear for 1/8 mile is whooping my A$$. So he kinda of broke everything down into retard language that i could actually understand. It finally clicked, i get what people are saying now. My thought process was 180 degrees off. Lower gear (higher numarically) will load engine better and remove stresses on the engine at the time of launch due to the car trying to overcome the inertia of the gears. Which in turn will help the car out of the hole. GOT IT. After talking to him he has shown me the light that so many others were trying to. LOL Thanks to Forcefed86 and tblentrprz for being patient
So, going back a step or two i now agree that if i want to trap 125 mph @ 7500 rpms w/ 28inch tire i will require a 5.00 gear (in optimal HP/RW combo) to reach 5.6x 1/8th ET
If trap RPM proves to be better or worse than expected then gearing may change (i.e. lower rpm=higher gear and higher rpm=lower gear)
The biggest hurdle will be getting RW down to desirable amount. I read that its common for 4th gen F bodies to achieve 3000 lbs which would put me at 3250 RW. How difficult is it for a DIY average joe to get it sub 3000lbs?
So, going back a step or two i now agree that if i want to trap 125 mph @ 7500 rpms w/ 28inch tire i will require a 5.00 gear (in optimal HP/RW combo) to reach 5.6x 1/8th ET
If trap RPM proves to be better or worse than expected then gearing may change (i.e. lower rpm=higher gear and higher rpm=lower gear)
The biggest hurdle will be getting RW down to desirable amount. I read that its common for 4th gen F bodies to achieve 3000 lbs which would put me at 3250 RW. How difficult is it for a DIY average joe to get it sub 3000lbs?
06-15-2017, 08:15 PM
#84
TECH Addict
If you can find a guy with a big pressure washer,, and I mean BIG, they can peel the asphalt insulation off the bottom of the body with it and any undercoating. I've seen 300 plus lbs off a car doing this..
Friend and I did this:
5.0 Fox Mustang(Road Racing) thats right at 2400 wet. We dismantled the car to a bare tub, Liquid nitrogen stripped the body then had it acid dipped, then trimmed all the body seams and hole sawed non structural bits . Steeda aluminum suspension in the rear, fiberglass rear-hatch (almost 100 lbs alone!) Glass hood, AL cowl, gutted both doors to shells, dash gone using a STACK cluster for all the instrumentation, Kirk seat, Ford motorsports block and AL heads, stepped headers, We lightened any thing we bolted back on. All perspex windows. Al can for the fuel cell, relocated battery car is now corner balanced 55% front 45% rear. Steering rack got chucked in a lathe and turned 5 lbs off it, it was a special aluminum version before we started. (Still have power steering
Chrome Moly 8 pt tigged cage. Willwood brake system all around. Tilton brake and clutch master cylinders.
FWIW when we dismantled the car, the interior alone was north of 600 lbs. (Electric seats carpet wiring harness, more ugly asphalt insulation inside all the headliner door panels etc.. ) filled/covered all the holes with 24g Al sheet. The role of AL we went through was about 40 lbs.. We mounted all the electrical including the ignition where the passenger side of the dash was supposed to be.. Dual ignition systems.. (Car owner likes fancy schmancy..
)
Friend and I did this:
5.0 Fox Mustang(Road Racing) thats right at 2400 wet. We dismantled the car to a bare tub, Liquid nitrogen stripped the body then had it acid dipped, then trimmed all the body seams and hole sawed non structural bits . Steeda aluminum suspension in the rear, fiberglass rear-hatch (almost 100 lbs alone!) Glass hood, AL cowl, gutted both doors to shells, dash gone using a STACK cluster for all the instrumentation, Kirk seat, Ford motorsports block and AL heads, stepped headers, We lightened any thing we bolted back on. All perspex windows. Al can for the fuel cell, relocated battery car is now corner balanced 55% front 45% rear. Steering rack got chucked in a lathe and turned 5 lbs off it, it was a special aluminum version before we started. (Still have power steering
Chrome Moly 8 pt tigged cage. Willwood brake system all around. Tilton brake and clutch master cylinders.FWIW when we dismantled the car, the interior alone was north of 600 lbs. (Electric seats carpet wiring harness, more ugly asphalt insulation inside all the headliner door panels etc.. ) filled/covered all the holes with 24g Al sheet. The role of AL we went through was about 40 lbs.. We mounted all the electrical including the ignition where the passenger side of the dash was supposed to be.. Dual ignition systems.. (Car owner likes fancy schmancy..
) 
06-15-2017, 10:04 PM
#86
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more gear=less motor stress....ill be peak boost around 3k rpms riding that pony to 7500. but F**k, i could be wrong............again
06-16-2017, 09:00 PM
#88
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So after accounting for converter slip (6%) it brings rear to 4.72, but since there is no 4.72 the next one is 4.56. Will launch hard with less engne work
06-29-2017, 08:23 PM
#91
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cage is by MWC and my welder is on point, im really happy with how everything is progressing. We unfortunately ran out of time, but we will be working on this coming weekend and hopefully finish. Ive slowly been removing seam sealer and unnecessary interior brackets. So many spot welds
06-30-2017, 08:42 AM
#92
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-Dalton
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FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
FTI COMPETITION CONVERTERS AND TRANSMISSIONS
"IT'S NOT CHEATING, IT'S THE COMPETITIVE EDGE."
1-866-726-8358
info@ftiperformance.com
FTIPerformance.com
FTI Converter build sheet
06-30-2017, 09:53 PM
#93
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07-03-2017, 08:32 AM
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07-03-2017, 02:57 PM
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07-26-2017, 08:08 PM
#99
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I know its been awhile since i got on here to update my build... a lot has happened but in reality not that much has happened.
Cage status:
Took a bit more slicing and dicing than i had originally planned out and my build times were shortened which drew out the process.
However everything is where it needs to be and we are in the final welding stage. Another weekend and it will be complete. Any suggestions on Roll cage corrosion prevention?
Parts that have arrived since last update:
1: Pair of used QA1 SA Front coil overs
2. PTC 9.5 billet converter
3. Holley Fuel Rails
4. MS3 LSx Gold Box
5. 60mm Wastegate
6. 50mm BOV
7. (2) AEM 380lph Fuel pumps
Parts still on order:
Hooker 8510HKR Turbo manifolds (est ship in 2-3 weeks)
Parts on the next order:
Electronic boost controller that i can connect to my MS3
1:1 fuel pressure regulator
Assorted Fuel fittings and hoses ( how hard is it to make your own lines?/)
(2) Fuel Pre-filters
5 gal. Aluminum Sumped fuel cell
Ignition Control panel
Kirkey Pro drag seat
Race craft F body seat bracket
Im hoping to get the cage done in the next couple of weekends and ill pull out all the parts i have waiting to be installed and take pictures.
Cage status:
Took a bit more slicing and dicing than i had originally planned out and my build times were shortened which drew out the process.
However everything is where it needs to be and we are in the final welding stage. Another weekend and it will be complete. Any suggestions on Roll cage corrosion prevention?
Parts that have arrived since last update:
1: Pair of used QA1 SA Front coil overs
2. PTC 9.5 billet converter
3. Holley Fuel Rails
4. MS3 LSx Gold Box
5. 60mm Wastegate
6. 50mm BOV
7. (2) AEM 380lph Fuel pumps
Parts still on order:
Hooker 8510HKR Turbo manifolds (est ship in 2-3 weeks)
Parts on the next order:
Electronic boost controller that i can connect to my MS3
1:1 fuel pressure regulator
Assorted Fuel fittings and hoses ( how hard is it to make your own lines?/)
(2) Fuel Pre-filters
5 gal. Aluminum Sumped fuel cell
Ignition Control panel
Kirkey Pro drag seat
Race craft F body seat bracket
Im hoping to get the cage done in the next couple of weekends and ill pull out all the parts i have waiting to be installed and take pictures.
