Is this BS?

[jackieiraqi2004]

Someone is selling me a 99TA which claims to have 500 horses. Without the nitrous is this care car capable of 500 flywheel horsepower? Can someone please explain a little bit more on the heads. I don't understand all of the info.

The body and front wheel bearings have 57,000 miles.

The engine is new(6,000 miles): 2002 High Performance LS1 stock pistons, stock crank,stock rods. ARP Rod Bolts, ARP Main Studs, ARP Head Studs, LS6(modded) oil pump

CAM: FMS 232/236 .585/.595

HEAD: TEA 5.3 stage 2.5 heads CNC'd, 40 hrs of competition hand porting, special NITROUS exhaust port, 2.05 intake. 1.60 exhaust halves (receipts)

INTAKE: LS6

Injectors: 28Lbs.

Throttle Body: Ported by Ranger (GMMG)

Engine assembled installed and tuned by Mike at GMMG

Tranny: New 6000 miles 4L60E Art Carr

Stall: Vigilante 3800

Rear end: Moser 12 bolt with Strange pro series 4.11's and a posi unit

Suspension: Front-stock springs/shocks no fron sway bar installed

YOU WILL GET ORIGINAL OEM SUSPENSION COMPONENTS if you would like.

BMR Subframe connectors

REAR:- stock springs/shocks

SPOHN tunnelbrace/torque arm/driveshaft loop/LCA's/Panhard bar ( all adjustable)

Wheels: 15x3.5 Weld Draglites w/Futura tires

15x10(7.5" backspace) Futura tires 1000 miles

15x3.5 Weld Dragstars w Firestone tires

15x10 (6.5" backspacing) Nitto's

YOU WILL GET ALL THESE TIRES!

NITROUS: NX MAF Kit 150 SHOT

Exhaust: Jet Hot Long Tube Headers

Hooker OffRoad Y pipe

4" Mufflex with Flowmaster

This car also has line lock

500 HP 700 WITH NITROUS

[Sarge]

Someone is selling me a 99TA which claims to have 500 horses. Without the nitrous is this care car capable of 500 flywheel horsepower? Can someone please explain a little bit more on the heads. I don't understand all of the info.

The body and front wheel bearings have 57,000 miles.

The engine is new(6,000 miles): 2002 High Performance LS1 stock pistons, stock crank,stock rods. ARP Rod Bolts, ARP Main Studs, ARP Head Studs, LS6(modded) oil pump

CAM: FMS 232/236 .585/.595

HEAD: TEA 5.3 stage 2.5 heads CNC'd, 40 hrs of competition hand porting, special NITROUS exhaust port, 2.05 intake. 1.60 exhaust halves (receipts)

INTAKE: LS6

Injectors: 28Lbs.

Throttle Body: Ported by Ranger (GMMG)

Engine assembled installed and tuned by Mike at GMMG

Tranny: New 6000 miles 4L60E Art Carr

Stall: Vigilante 3800

Rear end: Moser 12 bolt with Strange pro series 4.11's and a posi unit

Suspension: Front-stock springs/shocks no fron sway bar installed

YOU WILL GET ORIGINAL OEM SUSPENSION COMPONENTS if you would like.

BMR Subframe connectors

REAR:- stock springs/shocks

SPOHN tunnelbrace/torque arm/driveshaft loop/LCA's/Panhard bar ( all adjustable)

Wheels: 15x3.5 Weld Draglites w/Futura tires

15x10(7.5" backspace) Futura tires 1000 miles

15x3.5 Weld Dragstars w Firestone tires

15x10 (6.5" backspacing) Nitto's

YOU WILL GET ALL THESE TIRES!

NITROUS: NX MAF Kit 150 SHOT

Exhaust: Jet Hot Long Tube Headers

Hooker OffRoad Y pipe

4" Mufflex with Flowmaster

This car also has line lock

500 HP 700 WITH NITROUS

With that cam and 28lb injectors I...wait a minute...a flying pig just flew over my house...never mind...
Nah I think we are polishing the pig w/ the 500 HP statement...The heads now are difficult as you say the have 40 hours of polishing....man thats a shitload of polishing....so who knows what they flow...tiny exhaust valve though....but the dead give away is the injectors...no way in hell you gonna get 500hp on 28lb injectors...no way...I mean lets compare here....I put down 540'ish..
GM LQ9 Iron Block
Forged Balanced Lunati Crank Walbro 255 Fuel Pump
Mahle Forged Pistons/Rings FAST Fuel Rails
Lunati Forged Rods 48lb Injectors
ARP Rod Bolts
SLP Underdrive Pulley
LS6 Lingenfelter Ported High Flow Oil Pump
Clay Smith Cam 238/242, .602/.610 lift on a 114 LSA
Patriot 243 Heads 64cc Chambers flow @ 340 cfm @.640 lift
Patriot Gold dual valve springs .650 lift
Titanium Retainers
ARP Head Bolts
Nick Williams 90mm Throttle Body
Z06 MAF (MafLess SD Tune coming this week)
FAST 90mm Intake
Perma-Cool Remote Dual Oil Filters
Perma-Cool Oil Cooler
Royal Purple Racing 41 Motor Oil w/ dual AC/Delco filters
Now I may believe he puts out 500 with that shot of nitrous.....but with stock pistons and rings he aint gonna do it for long thats for damn sure...

[Zboner]

he also says 700 with N20 but only has listed it as a 150 shot, sounds like a joke to me, or just say ill buy it if you take it to a dyno and it puts out those numbers

[Zboner]

never mind

[meanZ97]

[needmorepwr]

450 possibly at the most. No way 500.

[TACE02]

hmmm sounds like it is a very similar set up to mine.
CNC Ported LS6 heads, 5.7L flowing around 310 cfm @ .600 lift.
237/242 .603/.609 113 LSA cam
except I have true dual 3 inches.
with tune put down 420 rwhp, so maybe around 470ish flywheel or so. if he claims 500 RWHP, then I would raise the flag also....BS.

unless that ported throttle body and tune by GMMG is all that. If so, hell yeah I will make me an appointment so I too can achieve 500 RWHP. wow that is an 80 RWHP gain off a ported throttle body and a tune.

[Liquifire]

hmmm sounds like it is a very similar set up to mine.
CNC Ported LS6 heads, 5.7L flowing around 310 cfm @ .600 lift.
237/242 .603/.609 113 LSA cam
except I have true dual 3 inches.
with tune put down 420 rwhp, so maybe around 470ish flywheel or so. if he claims 500 RWHP, then I would raise the flag also....BS.

unless that ported throttle body and tune by GMMG is all that. If so, hell yeah I will make me an appointment so I too can achieve 500 RWHP. wow that is an 80 RWHP gain off a ported throttle body and a tune.

you have a bigger cam though and what size are your injectors? He also claimed 500 flywheel HP not at the tires. Even so I would claim BS. I would say 450 flywheel HP though without the nitrous.

[third_shift|studios]

request a dyno.

[TACE02]

I either have 24 or 28 lb. injectors, not sure on that one. lol. it is possible the previous owner left bigger ones in, seeings how she left the second fuel pump in and running. As for the 500 flywheel HP, K, I see that now in the post. MMMM well maybe. Seems a little steep. Most head and cam packages offer around the 470-480 flywheel range, and that is with most bolt-ons. It isn't unheard of to achieve more. Maybe GMMG did a REALLY good job on it.

[TMF]

It doesn't sound right to me

[FasstChevys]

Hmmm, heads/cam.................it could be close.........but maybe not quite. As said above, ask for the dyno sheet for