OCT. 9 Fri nite Mopac Performance Street Legal #21

[John Hartman]

Paul, properly setup that car will easily do 12's.  Probably 11's actually.

[GlenMartin]

purple 2g was mine....yeah it was my first time running on the track and the damn thing's so hard to launch. 

what? hard to launch? you rev it up and drop the clutch. awd is the easiest car to launch.

[John Hartman]

stock yes, they are not bad.  Once you make some good power, its not. Its either spin like mad, or bog.

[Paul Pigar]

stock yes, they are not bad.  Once you make some good power, its not. Its either spin like mad, or bog.

it bogs down.....when am around 4000 rpm on 3rd gear it seems like its losing power.

[John Hartman]

either knocking too badly or too rich.

You have DSMLink, but you need to tune it.

[GlenMartin]

stock yes, they are not bad.  Once you make some good power, its not. Its either spin like mad, or bog.

it bogs down.....when am around 4000 rpm on 3rd gear it seems like its losing power.

bogs when your launching? rev it to 6000 drop the clutch. its not a honda. the 4000 3rd gear thing is happening to me and pissing me off. still trying to track down source. i dont have dsm link however. one day. good luck with tuning

[John Hartman]

Glen, you sure talk like you have lots and lots of track passes in your DSM.  As well, lots and lots of tuning experience.

How much of each?

[Richard Clark]

I hope u weren't being serious about revving to 6k and dropping it.  I would hate to be your drivetrain

[John Hartman]

but its not a Honda so it must be all good.  All wheel drive be damned right?  With a 2wd car, yea, givver, the tires just spin.  On an awd car with adequate traction, what lets go?  Clutch?  Axle?  Driveshaft?  Differential(front, center or rear)?  Tcase?  internal bits of the tranny?

[Remi Raymond]

Yeah... 6 k launches actually make the car slower, *if* it holds together after the second one.

[Brett Haviland]

yeah glen,  with the awd i would say 6000 RPM and dropping it hard would lead to some sort of problems for sure on a dsm.  You can get away with that with FWD where it just breaks the front tires loose...

More 4000-4500ish (or launch control - WOT)RPM and then give it a good slip of the clutch followed by applying the gas in accordance to keep from slipping the clutch too much but also not giving enough, and bogging out.

There is also a more trickier way to lanch a 5-speed dsm as well by holding the brakes on while you slip the clutch and give it gas all in one motion to build up a bit of boost before you launch and slip the clutch.  THis technique is pretty hard to master tho and takes lots of practice to get it right.  Launch controll or studder box is much easier.

[Kristopher]

Not condoning the 6k rpm launch method, but I have a good friend who religiously bounced the rev limiter and side-stepped his clutch on a 92 laser with 4 bolt rear. He owned the car for many a year without major failures. Just a couple clutches. The CFDF was weaksauce (and probably saved a bunch of damage) but the best combo was our fenco/dynapak stocker disc with a custom cut on the flywheel. Cheap, easy, and effective.

I certainly wouldn't try any of that when making more power though. Once the tires heat up and stick then something will break of there's too much power.

[Jason Harwood]

Glen, have you ever launched an AWD car before?!?!

You rev up to probably 4-5 let the clutch out a bit, the car rolls for about a foot then you go WOT and drop it.

You should never drop it from 6k and assume thats going to work fine!

[Richard Steger]

At factory stock everything, I did 40 plus launches at PG's drag strip with about 20 of those at rev limiter.  Now I understand that torque is low at that rpm.  I also had crappy tire winter tires on. My stock clutch was feeling soft, but held up surprisingly well.  But I don't doubt for a moment that with more power something would have broke or my clutch would have melted into complete no forward motion with that abuse.  Who knows, maybe I fluked out with a well put together car from the factory and an easy life from a retired airline pilot, till me... or maybe I just dodged a bullet...

[GlenMartin]

but its not a Honda so it must be all good. 

i was saying that an awd car is easier to launch than a fwd car. 

Glen, you sure talk like you have lots and lots of track passes in your DSM.  As well, lots and lots of tuning experience.

How much of each?

you couldn't be more wrong i have stated many times on this very forum that i am a noob to dsms, but not the car industry. my knowledge of cars in general and dsm's is a lot more than people on this forum. your right though never had this dsm at the track, nor have i begun tuning it. i plan to one day. just got it in the summer, i had three cars at that time and never drove this one. then i had back surgery blah blah. so i cant work on the car. just because i haven't done anything on my dsm yet doesn't mean i cant.

buddy was talking about bogging problems. the rev to 6000 and dropping the clutch was more of a joke than anything. but again its not hard to figure out in a awd car. if your launching at 3000-3500, and bogging down try 4000-4500 and so on. every driver and car has its sweet spot. just got to find it.

again not many people know me here and my sense of humour. hope that changes in the future, but the people who do know me know that i am here only to supply humour and constructive critisism, and help. i obviously pissed off john so sorry john. i wont say anything about launching, tuning, or mechanical repair until i have done each of the three on my dsm.

Glen, have you ever launched an AWD car before?!?!

hahahaha of course i have. i launched matt fredriksons car many a times like that. hahahhaha. kidding.