Estimate my 1/4 ET

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Jan 12, 2012 | 07:44 PM

insomniac

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Estimate my 1/4 ET

91 Firebird Vert

87 MAF L98

Ported Plenum
Ported SLP Runners
TPIS Lower Intake
Crane 2032
Stock Heads
MSD Distributor

Hooker 2055 Headers and Y pipe
Magnaflow 3" exhaust

700R4 2500 Stall

3.45 9 bolt Posi

Subframe connectors
Founders rear control arms and panhard bar
Billstein rear shocks KYB front struts

WS6 wheels 245/50/R16 Firestone Firehawk INDY 500 Tires

kinda hoping for 13.5

what you think?

Last edited by insomniac; Jan 12, 2012 at 09:25 PM.

Jan 12, 2012 | 09:50 PM

Bullydawg

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From: Alamogordo, NM

Car: 88 Formula 350

Engine: 5.7

Transmission: T-56

Axle/Gears: 9" 3.89

Re: Estimate my 1/4 ET

I would estimate a 14.1-14.2 or so if you can hook. 'Verts are a bit heavy.

Jan 13, 2012 | 06:48 AM

insomniac

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Re: Estimate my 1/4 ET

oh man, ill be so pissed if i cant get into the 13's

Jan 13, 2012 | 06:56 AM

1gary

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Joined: Jul 2011

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Re: Estimate my 1/4 ET

Quote:

Originally Posted by insomniac

Stock heads??.

Jan 13, 2012 | 07:13 AM

insomniac

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Joined: Jul 2010

Posts: 833

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Re: Estimate my 1/4 ET

Quote:

Originally Posted by 1gary

Stock heads??.

yeah fully rebuilt, guess thats whats gonna hold me back...

Jan 13, 2012 | 07:18 AM

TPI-Formula350-

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Joined: Aug 2003

Posts: 1,644

Likes: 4

From: Long Island New York

Car: 89 Formula 350

Engine: Forged 385 H/C/I

Transmission: 700R4-4300 Stall-lockup

Axle/Gears: BW 9 Bolt 3:70

Re: Estimate my 1/4 ET

Quote:

Originally Posted by Bullydawg

I would estimate a 14.1-14.2 or so if you can hook. 'Verts are a bit heavy.

Jan 28, 2012 | 09:28 PM

insomniac

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Re: Estimate my 1/4 ET

if this car cant get into the 13's im gonna puke... then have to buy a supercharger

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Jan 29, 2012 | 02:37 PM

Cosmik Debris

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Joined: Jul 1999

Posts: 565

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From: Christchurch, New Zealand

Re: Estimate my 1/4 ET

Quote:

Originally Posted by insomniac

if this car cant get into the 13's im gonna puke... then have to buy a supercharger

Grab a paper bag, the airlines have some you can probably get for free.

Jan 29, 2012 | 04:35 PM

insomniac

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Re: Estimate my 1/4 ET

Quote:

Originally Posted by Cosmik Debris

Grab a paper bag, the airlines have some you can probably get for free.

13's aint that fast tho..... stock l98's can go mid 14's

so its not that hard to shave .5 seconds

Jan 29, 2012 | 05:22 PM

#10

Street Lethal

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From: NYC / Jersey

Car: 1990 Trans Am GTA

Engine: Turbo 305 w/MS2

Transmission: 700R4

Re: Estimate my 1/4 ET

Quote:

Originally Posted by insomniac

Crane 2032 & Stock Heads

That is what is holding you back, the "RV" cam w/stock heads, not the weight of the car...

Jan 29, 2012 | 05:25 PM

#11

insomniac

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Re: Estimate my 1/4 ET

Quote:

Originally Posted by Street Lethal

That is what is holding you back, the "RV" cam w/stock heads, not the weight of the car...

Whats a "RV" cam?

Jan 29, 2012 | 07:35 PM

#12

Street Lethal

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iTrader: (16)

Joined: Jul 2003

Posts: 10,521

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From: NYC / Jersey

Car: 1990 Trans Am GTA

Engine: Turbo 305 w/MS2

Transmission: 700R4

Re: Estimate my 1/4 ET

Quote:

Originally Posted by insomniac

Whats a "RV" cam?

It's designed for a short powerband. Works well with a stock TPI setup, though...

Duration @ .050": 214/220
Advertised Duration: 270/276
Lobe Separation: 112
Gross Lift: .452/.465
Basic RPM Range: 2000-5500

Jan 30, 2012 | 06:06 AM

#13

mw66nova

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From: Harford County, MD

Car: camaro sportcoupe

Engine: 7.0L

Transmission: G-Force GF5R

Axle/Gears: Moser 9"

Re: Estimate my 1/4 ET

i think it can go 13.9's given optimal conditions. what's the DA typically where you race at? also, what is the weight of the car? Orr89Iroc went 13's with a bolt on and converterd l98 car

Jan 30, 2012 | 08:46 PM

#14

insomniac

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Re: Estimate my 1/4 ET

Quote:

Originally Posted by mw66nova

i think it can go 13.9's given optimal conditions. what's the DA typically where you race at? also, what is the weight of the car? Orr89Iroc went 13's with a bolt on and converterd l98 car

its a vert so i gotta assume heavier then the 3450 pound hard tops. maybe 3600?

Jan 30, 2012 | 08:50 PM

#15

TPI-Formula350-

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Joined: Aug 2003

Posts: 1,644

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From: Long Island New York

Car: 89 Formula 350

Engine: Forged 385 H/C/I

Transmission: 700R4-4300 Stall-lockup

Axle/Gears: BW 9 Bolt 3:70

Re: Estimate my 1/4 ET

Quote:

Originally Posted by mw66nova

i think it can go 13.9's given optimal conditions. what's the DA typically where you race at? also, what is the weight of the car? Orr89Iroc went 13's with a bolt on and converterd l98 car

Think Orr89Iroc went 12.90s with that setup. My old L98 bolton setup went 13.20s

Jan 30, 2012 | 08:51 PM

#16

insomniac

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From: The Jersey Shore

Car: 1991 Firebird Convertible

Engine: 5.7 L98

Transmission: 700R4

Axle/Gears: 3.45 9 Bolt Posi

Re: Estimate my 1/4 ET

13.2 thats really good. what bolt ons did it have?

Jan 30, 2012 | 09:01 PM

#17

TPI-Formula350-

Supreme Member

Joined: Aug 2003

Posts: 1,644

Likes: 4

From: Long Island New York

Car: 89 Formula 350

Engine: Forged 385 H/C/I

Transmission: 700R4-4300 Stall-lockup

Axle/Gears: BW 9 Bolt 3:70

Re: Estimate my 1/4 ET

Quote:

Originally Posted by insomniac

13.2 thats really good. what bolt ons did it have?

http://www.gmhightechperformance.com...s/viewall.html
Its was 98* at Englishtown when everyone ran these times. I ran the the 13.20s in much cooler weather

Jan 30, 2012 | 09:19 PM

#18

91_B4C_RS

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Joined: Jul 2005

Posts: 372

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From: Indianapolis,IN

Car: 1991 B4C Camaro RS

Engine: 370 lsx ls3 heads victor jr w/carb

Transmission: TH400 w/brake coan 8"4500-4800 stal

Axle/Gears: Moser 9" locker w/ 4.11's

Re: Estimate my 1/4 ET

I believe you have a 13 sec pass in it.

My 91 Camaro. Full weight with street tires ran 13.96@ 90sumthing.
Stock l98 speed density 350. 150,000 mile engine. K&n filters. Full msd ignition and a jet chip.