looks like the truck is finally ready
12-11-2018, 07:59 PM
#2
Senior Member
Thread Starter
Well I didn't know all the text disappeared when I loaded the pictures. I guess an explanation is in order.
80 to 75mm pulley swap
dyno tune
373 to 410 gear swap
long tube header install
First dyno pull (1/4 mile) netted a 12.18 at 109 before any work was done. Final transmission tuning will take place at the track as the truck can't shift from first to second quick enough on the dyno.
80 to 75mm pulley swap
dyno tune
373 to 410 gear swap
long tube header install
First dyno pull (1/4 mile) netted a 12.18 at 109 before any work was done. Final transmission tuning will take place at the track as the truck can't shift from first to second quick enough on the dyno.
12-12-2018, 05:34 AM
#5
Originally Posted by rojizostang
Kooks 1 7/8 long tubes
12-12-2018, 07:26 AM
#7
Senior Member
Thread Starter
No final numbers yet, however they were trending on the low side before the header install. I'm thinking about going to a little taller rear tire as they should help the transmission to be able to hit all the shift points on time.
I hope to talk to them today and go over all the details and see if there's anything left undone that needs to be addressed.
Also thinking about picking up an Ngauge.
I hope to talk to them today and go over all the details and see if there's anything left undone that needs to be addressed.
Also thinking about picking up an Ngauge.
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12-12-2018, 07:31 AM
#8
Originally Posted by rojizostang
No final numbers yet, however they were trending on the low side before the header install. I'm thinking about going to a little taller rear tire as they should help the transmission to be able to hit all the shift points on time.
I hope to talk to them today and go over all the details and see if there's anything left undone that needs to be addressed.
Also thinking about picking up an Ngauge.
I hope to talk to them today and go over all the details and see if there's anything left undone that needs to be addressed.
Also thinking about picking up an Ngauge.
12-12-2018, 03:59 PM
#10
Senior Member
Thread Starter
Stock GT500
We talked about a throttle body switch, however it was suggested that there are other/better places to spend money at this point. Matt and Tim both said their experience with throttle bodies on their dyno suggests the stock gt500 throttle body is good to at least 700rwhp before it becomes a restriction. Not to argue with anyone here on the forum, but these guys have been at it for a long time, so I went with their input. I"ll attach the dyno sheet in the next post so I don't lose all my text like I did in the first post.
The headers picked up 35rwhp and torque across the board. Preliminary numbers were 455/475. The final numbers are on the graph.
We talked about a throttle body switch, however it was suggested that there are other/better places to spend money at this point. Matt and Tim both said their experience with throttle bodies on their dyno suggests the stock gt500 throttle body is good to at least 700rwhp before it becomes a restriction. Not to argue with anyone here on the forum, but these guys have been at it for a long time, so I went with their input. I"ll attach the dyno sheet in the next post so I don't lose all my text like I did in the first post.
The headers picked up 35rwhp and torque across the board. Preliminary numbers were 455/475. The final numbers are on the graph.