Went to the track tonight and the car did poorly.
As I have found, I must sit at the light, hold the brake, and "wait" for the boost to build up. There is no instantaneous spool at the light that I can get a good launch on.
Yet once I get to 10-11 psi and let off the foot brake, the car then takes off like a bat out of hell.
And also cruising down the interstate I can stomp it and the car quickly gets out of it's own way.
People in the grand stands said "It puts on a great smoke show in the water box, but when you launch it 's like 'is he gonna go?' Then all the sudden you take off."
I am sort of thinking it's due to having a D5 converter and a TE-60 turbo + a Postons GN110T cam. I don't think my headers have a leak/crack that would interfere with boost build up.
The last time I raced my car it ran a best of 12.61 at 109 mph with a 2.00 60 ft. It's not spinning out of the hole either from what I was told last time by Sean (youlikethat). And that was foot braking, I think i may have had 7-8 psi as I had the old powermaster back then.
This time I have a hydroboost and I was holding at the line what I thought was 10 psi but my powerlogger (had it going) said it was more like 13-14 psi i was leaving the line at. (I find that hard to believe)
Anyways the best trap speed I had tonight was 106.01 mph. I ran a 12.88 on that pass with a 1.998 60 ft.
The best e.t. I had tonight was a 12.87 and that was at a trap speed of 105.82 and a 2.004 60 ft.
The only engine mod I have done between the last time I ran and this time, was I replaced the 36 lb injectors with a set of 60 lb injectors.
The only other mods I've done to the car was replacing the powermaster with a hydroboost and also i installed a line lock as to not heat up my rear brake shoes.
I do have a powerlogger of the last run if anyone wants to see it. I can also post the 4 time slips here too.
I've often heard it said you should tune for trap speed and then tune for 1/4 mile time.
Yet it seems I tool a few steps back instead of forward.
Not sure where I should start from here. Perhaps someone could please steer me in the right direction?
I'm guessing I need to ditch the D5 converter? I don't know how accurate this is but on my powerlogger I started recording before I brake boosted. As soon as the car began to move forward it showed my rpms were up to like 2700 or so. I don't believe I was spinning. I was running a set of M/T E.T. street drag radials, size 275/50 R15 and I had them set at 17 psi.
Maybe I could remove fuel? How can I look at the powerlogger and see if I have too much fuel on launch/brake boost?
My combo is mentioned in my sig.
Thanks in advance.
As I have found, I must sit at the light, hold the brake, and "wait" for the boost to build up. There is no instantaneous spool at the light that I can get a good launch on.
Yet once I get to 10-11 psi and let off the foot brake, the car then takes off like a bat out of hell.
And also cruising down the interstate I can stomp it and the car quickly gets out of it's own way.
People in the grand stands said "It puts on a great smoke show in the water box, but when you launch it 's like 'is he gonna go?' Then all the sudden you take off."
I am sort of thinking it's due to having a D5 converter and a TE-60 turbo + a Postons GN110T cam. I don't think my headers have a leak/crack that would interfere with boost build up.
The last time I raced my car it ran a best of 12.61 at 109 mph with a 2.00 60 ft. It's not spinning out of the hole either from what I was told last time by Sean (youlikethat). And that was foot braking, I think i may have had 7-8 psi as I had the old powermaster back then.
This time I have a hydroboost and I was holding at the line what I thought was 10 psi but my powerlogger (had it going) said it was more like 13-14 psi i was leaving the line at. (I find that hard to believe)
Anyways the best trap speed I had tonight was 106.01 mph. I ran a 12.88 on that pass with a 1.998 60 ft.
The best e.t. I had tonight was a 12.87 and that was at a trap speed of 105.82 and a 2.004 60 ft.
The only engine mod I have done between the last time I ran and this time, was I replaced the 36 lb injectors with a set of 60 lb injectors.
The only other mods I've done to the car was replacing the powermaster with a hydroboost and also i installed a line lock as to not heat up my rear brake shoes.
I do have a powerlogger of the last run if anyone wants to see it. I can also post the 4 time slips here too.
I've often heard it said you should tune for trap speed and then tune for 1/4 mile time.
Yet it seems I tool a few steps back instead of forward.
Not sure where I should start from here. Perhaps someone could please steer me in the right direction?
I'm guessing I need to ditch the D5 converter? I don't know how accurate this is but on my powerlogger I started recording before I brake boosted. As soon as the car began to move forward it showed my rpms were up to like 2700 or so. I don't believe I was spinning. I was running a set of M/T E.T. street drag radials, size 275/50 R15 and I had them set at 17 psi.
Maybe I could remove fuel? How can I look at the powerlogger and see if I have too much fuel on launch/brake boost?
My combo is mentioned in my sig.
Thanks in advance.
