Is it bad for my drag 3 GSR at 7 psi to have MSD6A-L with the 2step feature launch control??...Someone told me it was bad for turbo cars???....any info would help thanks...

 

no. 2 steps are good.

 

if you have a msd 6al ignition a 2step can be made for under 10 bucks. and it will adjust infinate from 2000rpm to redline

 

CM-R (Speaking): So its not bad for turbo becuase its basically the same thing as hondata's launch control system.

 

So do you guys think i should just go for it and forget about hondata stage 3b and get 2b with msd 6al and 2 step???

 

The 2 step is not the right way to set boost control at the line. What is does is set backfires into the turbo to keep it spooled. The hondata dumps fuel and ignition to keep it spooled. It is a way safer way of doing it for your turbo, but im sure other people on here are going to disagree...but think what you want to.

 

Thanks....that does make sense

 

Well, I've herd that Hondata cuts fuel for it's 2 step, rev limit, full thottle shfts and launch control. If I'm not mistakien, that'll make you lean out and we all know what happens w/Turbo car s that do that.

I think using the MSD 2step is a very good idea. . . .


What do others think. . . . . . . . . ?

 

Thats just because you dont understand the dynamics behind it. It actually works very well.

 

nineseccrx: i have the hondata 2b. so, if i don't have a two step, will i have a hard time keeping the turbo spooled when i'm staged?

 

I saw a guy cutting consistent 2.1 60fts with street tires using the msd system - he had a few launches better than I did and I was using slicks - but I'm definately a novice in the launching with slicks area

 

ill talk to my friend today. all he did was take a 3 position switch and ran a 8000rpm pill inline on one side of it and a adjustable potentiometer on the other side. He just twists a **** on his dash to set his 2 step.. and it cost like 10 bucks. its an easy setup if you think about it,

 

Then explain. . . . ? Why it is better to cut fuel than spark. . . . .? School me sir. . ..

 

I'm right there with you... I always thought that the reason stock rev limiters were bad is because they cut fuel, and not spark... which caused the motor to go lean at high RPM, where it hurts most... <Unless you drive a SOHC Saturn, the just bounce nicely at 5900 RPM all day >

Anyway, MSD ONLY can control spark, not fuel, so the fuel is still shoved out the exhaust, but it causes the turbo to stay spooled, because the exhaust pulses from the firing cylinders are still coming full force, just less of them, to keep the car at a constant RPM level....

That is why I understood that the MSD 2 or 3 step<stutter box> is called a "Soft Step" or something like that.

 

So, the Hondata, you won't run lean?

 

So guys....all in all i should just stick with buying a hondata stage 3b rather than the MSD 6AL plus 2 step correct???

 

How would a two step soft rev connected to a line lock and a CM stage 4 work together? good idea or bad?

For example: When I launch I like to have the clutch half way out just barely rubbing against the flywheel before I let the clutch out. Ive been wanting to get a line lock to lock rear or front brakes....I dont know if it works with ABS....then connect the 2 step to to the line lock so when I release it, I just go.... But I dont want clutch chatter while im staged.

EDIT: I just remembered posting about this a few months ago and there being a problem due to diagonal braking system in the teg. But someone had a solution but I cant look it up because SEARCH no longer works! Yayeee!!!!

Although buying two line locks and just running each one to one rear tire might work....hmmm


[Modified by SO3Burner, 5:36 AM 5/1/2002]


[Modified by SO3Burner, 5:38 AM 5/1/2002]

 

Can someone else answer this or confirm SiR Kid's response?

 

Either method of rev limiter has it's ups and downs...

If you cut fuel and leave spark working, you risk the actual A/F ratio in the cylinder going from rich-lean-rich... This rarely causes detonation but, well...

If you cut ignition and leave fuel going, you run raw air/fuel mix through the cylinder and risk washing the cylinders. As long as the fuel stays suspended and doesn't condense on the walls, it will simply get pumped out the exhaust.

For what it's worth, I've tried both... IMHO, I think the MSD soft touch gets gold while the Hondata recieves a close but definate silver.


[Modified by B20C5 Turbo, 11:49 PM 4/30/2002]

 

So on your information which i believe made more sense.....i'm thinking of going with MSD 6AL +2step launch controller+hondata stage 2b instead of 3b...thanks for the help

 

Well, I'm still going to use the Hondata stage 3b because, it has Vtec control. . . thnaks for the help.

 

thanks everyone for confirming my thoughts

 

a 2 step does not "set backfires" into turbo it cuts spark at every other cylinder to hold rpm to pre set level, the backfire is from un burnt fuel pre igniting in the exhaust manifold spooling the turbo, hondata, does the same thing just the ignition cut is a slight bit diffrent, and hondata can control fuel at the same time, both ways can be hard on turbo's if too much timming is takin out causing overly rich backfire but sounds very cool, and builds good boost at the line,msd works good for me and I use it with speed pro Jason


[Modified by littlebluecrx, 2:33 PM 5/3/2002]

 

anyone ever think about a linelock connected to the hyd clutch system???

Release the button and you GO!

 

well im not sure what hondata uses for ther revlimit, if its a fule cut like honda's stock limiter thats no good for turbo cars but im sure they changed it to spark limit, which is what the msd 2 step is, the reason why its pops is because there is still fuel in the cylinders so you wont run lean, but you should probably not do it forever.....but it should be ok, i already have it hooked up on my car now, and i was using it while i was N/A, it seems violent on the car but i have had no problems with it