First time at the track 13.8 @ 110mph

[Turbo442]

I only got one run and I guess I blew it. Oh well next time I guess.
I guess the trap speed is not too bad though...

 

[Cyclone_90]

Woah what happened with your 60'?? 2.7 you should be able to knock that down one whole second. Not bad for your first time, I will probabaly see freakin 15s the first time i run my car :laugh: but at the end of the night i'll get the hang of it. Good luck

 

[olmytsi]

You have a high to mid 12 second car! 60 foot is what cost u the et.

 

[CanadianTSi]

MPH isn't to bad for Pump gas.

 

[Turbo442]

MPH isn't to bad for Pump gas.

It was on race gas...my 550's will start maxing out on pump gas around 60-70% throttle. I just was asleep at the tree I guess. So much for a 4000 rpm launch. I just wound up letting the clutch out at like 2000 rpm making no boost.

 

[BacknBlack92ESi]

That was your problem. I was pulling constant low 1.8 60's when I was bone stock. You can drop that down a second with a couple passes.

 

[Turbo442]

What will happen to my 1/4 mile trap speed when I finally pull a 1.7 60 ft? Will it remain the same or will it go up?

 

[CanadianTSi]

What will happen to my 1/4 mile trap speed when I finally pull a 1.7 60 ft? Will it remain the same or will it go up?

It will probably stay the same or may even go down abit seeing as you will have a lower ET therefore less time to accerlerate.

How much boost were you running? I would think you would trap higher then that with a 20g and race gas.

 

[StreetThisDSM]

I'd say a nice solid mid 12 at around 112-113 mph if you can get that down to a 1.7

 

[Turbo442]

I am running 22 psi with 2G pistons. AFC is +4 Lo and 0 Hi. Fuel pressure is 37 psi. Timing is set to 6 deg BTDC. With the current settings and full race gas I show zero knock...maybe a little at the end of the run as the 550's over run in 3rd and 4th. EGT's are stable at 1400F as long as the injectors dont start to over run. Stock exhaust is a little restrictive, its an old press bent Buschur 2.5" cat back. I am considering building a 3" that should free some flow up. I am trying to aquire a 90 EPROM ECU so I can burn my own eprom and properly drive some larger injectors. It would be nice to also add code to the ECU that will ignore knock while under vacuum. I commonly see knock in first gear when I am letting out the clutch or if I am in too high of a gear at too low of a RPM. I consider this perfectly normal and not phantom knock. This obviously isint doing much damage to the engine other than messing with the ECU's octane value. Also resetting the octane value after every shift would be cool! As I squash every little bug I find I find the car gets easier to tune. Changes I make are now making sence. Fuel trims are doing what they are suppose to. Honestly it was pretty dark towards the end of the run and I let off the gas for about a sec and then got back on it when I realized I wasnt through the 1/4 mile yet. I suppose that took its toll as well on things.

 

[Dallas J]

It will probably stay the same or may even go down abit seeing as you will have a lower ET therefore less time to accerlerate.

How much boost were you running? I would think you would trap higher then that with a 20g and race gas.

A better launch should give you a better trap speed because at any given point your going faster.

Think of it this way. If you pull a 2.7 60ft, then youre probably going pretty slow and have to now use space up to accelerate to where someone who pulls a 1.7 is already at.

The only difference seems to come when you have wheels spin, then it always got unpredictable for me, and seem to have to do more with when I shifted. (That experience was on an old turbo neon though)

-Dallas J

 

[Turbo442]

by the way the car in the left lane was one of those yellow Chevy Extreme Pickups...

 

[Red95DSM]

A better launch should give you a better trap speed because at any given point your going faster.

Think of it this way. If you pull a 2.7 60ft, then youre probably going pretty slow and have to now use space up to accelerate to where someone who pulls a 1.7 is already at.

The only difference seems to come when you have wheels spin, then it always got unpredictable for me, and seem to have to do more with when I shifted. (That experience was on an old turbo neon though)

-Dallas J

Wrong.....

Then why do AWD's in the mid 12's trap 108mph?

Better traction = lower E.T. ,slower trap speed

You run a 12.7 and you only trap 1mph faster than a FWD that just ran a 13.8

 

[JDMFirstGen]

Wrong.....

Then why do AWD's in the mid 12's trap 108mph?

Better traction = lower E.T. ,slower trap speed

You run a 12.7 and you only trap 1mph faster than a FWD that just ran a 13.8

Dallas is right, I did a 13.2 @106mph with a 1.8 sixty. AWD sucks upper end, there is a lot more rotatinal mass that has to be turned so awd slows down at the end of the track.
He should have a higher traps with a 1.(somthing) launch.

And Dallas did a 12.7 @ 111mph, mid 12 AWD cars don't trap at 108.

 

[Black95TSIawd]

110mph trap speed is good for a 12.5 or so. Some guy on here went 12.4 @ 108 with an fp28 and cams, ON PUMPGAS!. that 12.7 @ 111 car should do a 12.5 if not a little less with a better driver.

 

[fastaseagle]

on a awd if you dont launch correctly you will trap a higher speed than you would if you launch correcly... ive had numerous runs where i run 14.2 at 107.. with a 2.7 sixty foot.. and then come back and run a 13.0 at the same exact mph... if you dont launch then your getting there just as fast as you would if you launch. Hince.. fast is how fast your getting there ''mph'' qiuck is how quick your getting there ''et''....

 

[DaveSM]

All the valid empirical data shows MPH will drop as ET is reduced. Easy example is a normal car changing from street tires to slicks. ET will drop and so will MPH.

 

[Black95TSIawd]

i've gone 15.1 @ 93 and i've gone 14.2 @ 93 with a better 60ft mark. And then 14.0 @ 95 but i upped the boost. i dont see what u guys are trying to say.

 

[red4G63T]

With that trap speed as said before you should defintly be able to hit 12s.

My 60ft with my FWD was around 2.3-2.4 on stock 205s, so with AWD, you should drop that 60ft to 1.7-1.9 and you will see that 12 second e.t. easily.

Good luck