back to the firestones
09-02-2004 | 07:31 PM
#1
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,743
Likes: 2
From: omaha ne
back to the firestones
got a set of new firestones for $200, not too bad of a deal. figured i would post up my gtechs so far.
with the perillis the best 60' i could get was a 1.76 that was with diferent amounts of nitrous.
with the firejunks brand new i pulled a 1.83 last night with some wheel spin. then i roasted them off a few times and got rid of the **** and was able to pull a 1.75 with some wheel spin. the perilli's were usualy high 1.7x so i am better all ready. now i need to rotate the tires and burn the tit's off the other pair and i think i will be back in the 1.6x's
the perilli's definately looked better and handeled better. they are for sale if anyone is interested.
with the perillis the best 60' i could get was a 1.76 that was with diferent amounts of nitrous.
with the firejunks brand new i pulled a 1.83 last night with some wheel spin. then i roasted them off a few times and got rid of the **** and was able to pull a 1.75 with some wheel spin. the perilli's were usualy high 1.7x so i am better all ready. now i need to rotate the tires and burn the tit's off the other pair and i think i will be back in the 1.6x's
the perilli's definately looked better and handeled better. they are for sale if anyone is interested.
09-02-2004 | 08:02 PM
#2
TECH Enthusiast
Joined: Dec 2002
Posts: 698
Likes: 0
From: Fort Worth
You are not worried about the speed rating of the tires?
I have seen what happens to a tire spinning past the rating on a dyno, not a pretty sight. The sidewall starts to deform. From the back at first and then it goes slowly around the tires.
I have seen what happens to a tire spinning past the rating on a dyno, not a pretty sight. The sidewall starts to deform. From the back at first and then it goes slowly around the tires.
09-02-2004 | 08:13 PM
#4
TECH Enthusiast
Joined: Dec 2002
Posts: 698
Likes: 0
From: Fort Worth
They are rated at 112mph.
I have been hurting my brain thinking about going back to stock wheels and tires. I get no traction with my current setup and my 275/45R20s, although I spun the tires at 60 right by a 03 Corba the other day
. The speed rating is the only thing I am worried about. Loosing a tire at 120 would not be pretty.
676rwtq would probably kill the stockers to!!!
I have been hurting my brain thinking about going back to stock wheels and tires. I get no traction with my current setup and my 275/45R20s, although I spun the tires at 60 right by a 03 Corba the other day
. The speed rating is the only thing I am worried about. Loosing a tire at 120 would not be pretty. 676rwtq would probably kill the stockers to!!!
09-02-2004 | 08:21 PM
#5
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,743
Likes: 2
From: omaha ne
Originally Posted by StupidFast
They are rated at 112mph.
I have been hurting my brain thinking about going back to stock wheels and tires. I get no traction with my current setup and my 275/45R20s, although I spun the tires at 60 right by a 03 Corba the other day . The speed rating is the only thing I am worried about. Loosing a tire at 120 would not be pretty.
676rwtq would probably kill the stockers to!!!
I have been hurting my brain thinking about going back to stock wheels and tires. I get no traction with my current setup and my 275/45R20s, although I spun the tires at 60 right by a 03 Corba the other day
. The speed rating is the only thing I am worried about. Loosing a tire at 120 would not be pretty. 676rwtq would probably kill the stockers to!!!
09-02-2004 | 08:33 PM
#6
TECH Enthusiast
Joined: Dec 2002
Posts: 698
Likes: 0
From: Fort Worth
I moved the thread to the dyno section:
--------------------------------------------------------------------------
I dynoed 408rwhp@5700 and 436rwtq@4200. I know they look low but, it had 24 degress timing , 4.10s, truck intake, through Flowmasters, and spinning 85lb 20s. The torque curve is FLAT, it makes 430 at 3600 and still makes 400@5800. I need a bigger camshaft, it is a 230/230@112+4.
On a 200 shot with pump gas, it made 580rwhp and 677rwtq. I am very happy with the nitrous numbers. It still has the lean spike but, it is getting better. I will install a fuel cell in the very near future.
The A/F ratio is off alittle from the street tuning I did. On the street it is 12.7 and on the dyno it is 12.3, I guess the dyno can't load the motor like 4500lbs can.
What do ya'll think?
__________________
I am still trying to figure out the fuel cell, I think I am going to mount it in a small toll box in the bed. LOL
--------------------------------------------------------------------------
I dynoed 408rwhp@5700 and 436rwtq@4200. I know they look low but, it had 24 degress timing , 4.10s, truck intake, through Flowmasters, and spinning 85lb 20s. The torque curve is FLAT, it makes 430 at 3600 and still makes 400@5800. I need a bigger camshaft, it is a 230/230@112+4.
On a 200 shot with pump gas, it made 580rwhp and 677rwtq. I am very happy with the nitrous numbers. It still has the lean spike but, it is getting better. I will install a fuel cell in the very near future.
The A/F ratio is off alittle from the street tuning I did. On the street it is 12.7 and on the dyno it is 12.3, I guess the dyno can't load the motor like 4500lbs can.
What do ya'll think?
__________________
I am still trying to figure out the fuel cell, I think I am going to mount it in a small toll box in the bed. LOL
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