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Blown GT vs Sprayed GT

  • Thread starter Thread starter TropicMustang
  • Start date Start date Nov 18, 2008
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DogVomit

Member
Jun 9, 2005
192
1
19
Tampa, FL
Nov 19, 2008
#21
  • Nov 19, 2008
  • #21
Black_02_GT said:
im not too familiar with sc pullies, what size is the stock one? I know he's on the 3.3
Click to expand...

My stock (Vortech SQ) pulley was a 3.60, good for about 5 PSI

Now I have a 2.95 which is making right about 11 PSI

A 3.3 would likely make 7 PSI

On my 3.60 pulley, non-aftercooled I ran consistent 13.4 in the 1/4 at about 106mph.
 

myponyrocks

I have more billet on the Stang than most women ha
Apr 18, 2004
1,219
0
37
Nov 19, 2008
#22
  • Nov 19, 2008
  • #22
Bottle loses the advantage with multiple passes... Bottle temp, point in rpm band when spraying, launching rpm and such as well since the driver has to remember to warm, arm, purge, launch, shift, spray etc...

S/C driver just needs to worry about launch rpm and shift points

If it's a best out of 3 I vote for the bottle wining 2 of 3 though assuming both competent drivers and sticky tires on both rides.
 

Tim2002GT

Founding Member
Apr 10, 2002
635
4
29
Tulsa, Oklahoma
Nov 19, 2008
#23
  • Nov 19, 2008
  • #23
04YELLOWGT said:
What was your 60' ans what tires were you running?
Click to expand...

My 60" was a 1.92 and that was on Nitto DR's as well.

DogVomit said:
My stock (Vortech SQ) pulley was a 3.60, good for about 5 PSI

Now I have a 2.95 which is making right about 11 PSI

A 3.3 would likely make 7 PSI
Click to expand...

A 3.6" pulley is only good for 5 psi? You don't happen to have LT headers do you?

myponyrocks said:
Bottle loses the advantage with multiple passes... Bottle temp, point in rpm band when spraying, launching rpm and such as well since the driver has to remember to warm, arm, purge, launch, shift, spray etc...

S/C driver just needs to worry about launch rpm and shift points

If it's a best out of 3 I vote for the bottle wining 2 of 3 though assuming both competent drivers and sticky tires on both rides.
Click to expand...

That's what WOT and window switches are for! A purge is not absolutely necessary either.
 

mogs01gt

Founding Member
Jul 22, 2002
3,113
30
119
Ohio
Nov 19, 2008
#24
  • Nov 19, 2008
  • #24
myponyrocks said:
S/C driver just needs to worry about launch rpm and shift points
Click to expand...
heat soak is pretty damn important.
 
O

Omars96GT

New Member
Sep 12, 2008
3
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Nov 19, 2008
#25
  • Nov 19, 2008
  • #25
myponyrocks said:
Bottle loses the advantage with multiple passes... Bottle temp, point in rpm band when spraying, launching rpm and such as well since the driver has to remember to warm, arm, purge, launch, shift, spray etc...

not realy with a nitrous car you dont have to worrie about anything you just sead, all you do is turn it on and when you hit full throtal it starts spraying. its not like fast and the furious with all the shiny lights and buttons to press lol. the micro switch is placed on the TB so once it hits FOT it starts spayin. you dont realy need to worrie about what rpm you spay. launch on motor in 1st gear then 2nd you start spayng all the way till 4 or whatever gear you pass the finish line
Click to expand...
 

DBMSTNG

I fantasize about it being BIG!
Founding Member
Apr 23, 2002
2,120
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56
not quite here
Nov 19, 2008
#26
  • Nov 19, 2008
  • #26
yes the stock pulley size is 3.6"

with the stock pulley, a stockish GT should see 8-9psi at a reasonable altitude. if not, something is wrong. i saw 9 all the time with mine. now if you have ported heads and/or cams, that will lower the amount of boot.
 

DogVomit

Member
Jun 9, 2005
192
1
19
Tampa, FL
Nov 19, 2008
#27
  • Nov 19, 2008
  • #27
Tim2002GT said:
A 3.6" pulley is only good for 5 psi? You don't happen to have LT headers do you?
Click to expand...

That's all I made with the 3.60 pully, was 5psi and made 300whp (Non-cooled)
Today with my 2.95 (aftercooler) at 11 PSI, I'm making 427 WHP on stock internals! BOOOOOOYAAAAAAAAA

I'd still go with the blown car. It wins because it's a always ready power adder that doesn't require filling, warming, purging, etc.
 

MyBloodRunsBlue

New Member
Feb 1, 2007
127
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0
Nov 19, 2008
#28
  • Nov 19, 2008
  • #28
my car with 4.10s vortech aftercooled system at 10 psi and x pipe/catback went 12.22 @ 116 and i have raced and beat MANY 100 shot nitrous GTs
 

04GTMustang

New Member
Feb 28, 2006
348
0
0
Stafford
Nov 19, 2008
#29
  • Nov 19, 2008
  • #29
it really all depends. in the bigger drag cars its usually the nitrous car that takes the win. just because it doesnt wait for boost or anything to build once you hit it its there. but a 100 shot really isnt much at all. if he was spraying a 150 i would say nitrous all the way.
 

Tim2002GT

Founding Member
Apr 10, 2002
635
4
29
Tulsa, Oklahoma
Nov 19, 2008
#30
  • Nov 19, 2008
  • #30
Omars96GT said:
launch on motor in 1st gear then 2nd you start spayng all the way till 4 or whatever gear you pass the finish line
Click to expand...

Screw that, spray every gear!
 
T

TropicMustang

Member
Jul 29, 2007
77
1
8
Concord
Nov 19, 2008
#31
  • Nov 19, 2008
  • #31
Just found out that it is an auto. So I think I the start off may be a little more even because I thought his was a 5 speed
 

Winters98GT

Whoop...whoop-whoop-whoop-whoop...GANGNAM STYLE!!!
Founding Member
Nov 29, 1999
5,520
1,291
224
H Town
Nov 20, 2008
#32
  • Nov 20, 2008
  • #32
Tim2002GT said:
Screw that, spray every gear!
Click to expand...

amen!

tires, and rip it out of the hole. Nitrous wheelstand
 
O

Omars96GT

New Member
Sep 12, 2008
3
0
0
Nov 20, 2008
#33
  • Nov 20, 2008
  • #33
Tim2002GT said:
Screw that, spray every gear!
Click to expand...

trust me with street tires 100shot gets sceary lol but why only 100 i would go for 150shot
 
S

ShapeShifter

Member
Jun 5, 2006
85
0
7
Nov 20, 2008
#34
  • Nov 20, 2008
  • #34
stock auto gt with 373's is good for 12.0's on a 100shot if on a sticky tire.

back in the day i was spraying a pesky 75shot off the line with only 4.10's and x pipe+catback and netted a 12.40.
 

Mustang92

SN's #1 1%er
Jun 6, 2001
6,467
2
79
South Florida
Nov 21, 2008
#35
  • Nov 21, 2008
  • #35
TropicMustang said:
99-04 stangs both. which one do you guys think would win. One has Vortech with stock pulley and the normal bolt ons. Other has gears and a 100 shot.
Click to expand...

The better driver. Two cars with similar power in a race will come down to driver plain and simple. You put a crappy driver behind the wheel of a 450RWHP car and they run 13.0 @ 114, same car with a good driver can go 12.0 @ 117. That's a huge margin of error but just the way it is.

Bill
 

Tim2002GT

Founding Member
Apr 10, 2002
635
4
29
Tulsa, Oklahoma
Nov 21, 2008
#36
  • Nov 21, 2008
  • #36
Mustang92 said:
The better driver. Two cars with similar power in a race will come down to driver plain and simple. You put a crappy driver behind the wheel of a 450RWHP car and they run 13.0 @ 114, same car with a good driver can go 12.0 @ 117. That's a huge margin of error but just the way it is.

Bill
Click to expand...

Very true!
 

02nightmaregt

To hell with your Mustang, I want to see your HOG!
Jul 1, 2007
513
4
19
Southern Indiana
Nov 21, 2008
#37
  • Nov 21, 2008
  • #37
^+2
 
N

Nitrous03GT

New Member
Nov 21, 2008
17
0
0
Nov 21, 2008
#38
  • Nov 21, 2008
  • #38
a lot of factors in this...i raced a few blown GT's when i was running N/A and beat them only running 13.60's and raced some who blew me away at the same time...

from personal experience...given even drivers and such i would put my money on the n20 car...can come out of the hole a lot stronger if the grip is there and we all know how much the 60' accounts for the final time...

i went as fast as 7.80's@91 on a 125 shot, 3.73's stock tune and BFG DR's and in doing so was racing a buddy of mine who has a twin turbo '90 notchback making ~400rwhp i would leave him out of the box and he would be playing catch-up and i would typically beat him by about a 1/2 car or so...

as for personal preference, n20 does offer great bang for the buck, you can certainly fill alot of bottles for the thousands of dollars you save on a blower, but if i were to do it again i would chose the blower for the all around power...
 

blckstng96

Member
Apr 13, 2004
208
0
16
Nov 22, 2008
#39
  • Nov 22, 2008
  • #39
04YELLOWGT said:
What was your 60' ans what tires were you running?

I went 12.85 @ 109 with a 2.1 60'. That was with a exhaust, gears and Vortech w/ stock pulley through an auto with shi**y Nitto DRs.

Thats a great ET for the MPH.
Click to expand...

how so,seems pretty average to me
 

BurningRubber

10 Year Member
Dec 6, 2004
1,865
24
58
Nov 22, 2008
#40
  • Nov 22, 2008
  • #40
Assuming they could both hook, and they are both equally competent drivers; nitrous GT at the track.

The Vortech needs to build boost, nitrous comes on full force and will make more tourqe all across the board pretty much.

On the highway, the nitrous car would get the jump and get reeled in I would say. You are only supposed to spray for so long anyway, and spraying in 5th gear is ALOT of stress on the engine if you got up to those kinds of speed.
 
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