Forced Induction Turbos/Superchargers

2 step rev limiter

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Old Apr 6, 2008 | 12:58 PM
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2 step rev limiter

im planning on turbocharging my 2.2L later this year, and im wondering if there are any 2 steps out there available for our cars... most of the ones ive seen are for vehicles with distributors. any info is good
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Old Apr 6, 2008 | 04:23 PM
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Call up fred at smg. He is a sponsor on here and he has done a ton of custom work on the 2.2 including turboong them
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Old Apr 6, 2008 | 04:26 PM
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...why do you want a 2-step?
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Old Apr 9, 2008 | 02:01 PM
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launching for 1/4's... once i get turboed i plan on track racing it... my couisin has a turbo'd d16 civic that needs a good spanking, and im not into illegal street racing.
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Old Apr 9, 2008 | 04:33 PM
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Originally Posted by Jordizzle
launching for 1/4's... once i get turboed i plan on track racing it... my couisin has a turbo'd d16 civic that needs a good spanking, and im not into illegal street racing.
what are you gonna run slicks? you don't need a two step in that car unless you are shooting for something way way beyond what im betting you're shooting for.
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Old Apr 9, 2008 | 06:39 PM
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you don't need high hp for a 2 step

it wouldn't hurt really to be consistent with each launch
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Old Apr 9, 2008 | 07:29 PM
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I agree with Ninja on this one. When you find that mark for the perfect launch, wouldn't you want to hit it consistantly?
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Old Apr 9, 2008 | 07:35 PM
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Originally Posted by Switt23
I agree with Ninja on this one. When you find that mark for the perfect launch, wouldn't you want to hit it consistantly?
agreed!!
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Old Apr 9, 2008 | 08:59 PM
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Originally Posted by Switt23
I agree with Ninja on this one. When you find that mark for the perfect launch, wouldn't you want to hit it consistantly?
launching isn't about what rpm your at before you start to release the clutch. Hell it's more about clutch action then anything and how you control the throttle while releasing the clutch. The reason people use LC or 2-steps, whatever you want to call it, is in cars that rev extremely quickly and want to launch at pretty high rpm's don't want to just keep revving until they hit the actual rev limiter. When you are at high rpm's there is more friction thus more resistance so it is harder to keep at a given rpm. If you are gonna launch at 3k or less it's stupid to get a two step just learn to drive. if you plan on launching 5k+ then go for it, but like i said i doubt you will be doing that. i mean do what you want, but it's hard on your drivetrain and i think its pointless for your car.
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Old Apr 9, 2008 | 09:24 PM
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can anyone explain to the noob what a two step limiter is
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Old Apr 9, 2008 | 09:41 PM
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Originally Posted by cakeeater
launching isn't about what rpm your at before you start to release the clutch. Hell it's more about clutch action then anything and how you control the throttle while releasing the clutch. The reason people use LC or 2-steps, whatever you want to call it, is in cars that rev extremely quickly and want to launch at pretty high rpm's don't want to just keep revving until they hit the actual rev limiter. When you are at high rpm's there is more friction thus more resistance so it is harder to keep at a given rpm. If you are gonna launch at 3k or less it's stupid to get a two step just learn to drive. if you plan on launching 5k+ then go for it, but like i said i doubt you will be doing that. i mean do what you want, but it's hard on your drivetrain and i think its pointless for your car.
Really... what's the point in dumping the clutch at 6k rpm if you start to pull hard at 4k? I thought the point was to set it at the point of best launch (Which would entail starting at the best powerband).

Call me stupid, but unless your runna a full out drag car, dumping the clutch at 6k rpm is a waste of a gear.

The car starts to pull hardest at 4,500k you set it to that (If you can still maintain traction at that point, if not lower a little bit).

Am I just a young stupid kid who doesn't know anything or am I proving a point?... sound like someone has been playing too much need for speed to me.
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Old Apr 9, 2008 | 09:46 PM
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dude..2-steps are for hondas because they break axles from not knowing how to launch..take pride in your "american tuner" and launch on your own.
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Old Apr 9, 2008 | 09:47 PM
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...That was about the most knowledgable answer i've seen since CobaltSS.net was created. Seriously, you should become head moderator and correct everyone's answers because your knowledge of automobiles is just unreal!
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Old Apr 9, 2008 | 09:50 PM
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Originally Posted by Switt23
...That was about the most knowledgable answer i've seen since CobaltSS.net was created. Seriously, you should become head moderator and correct everyone's answers because your knowledge of automobiles is just unreal!
..excuse me for one i was maken fun of hondas because they are slow and the people cant drive..for two i never said i knew alot about cars..its pretty OBVIOUS. and three watch who you talk to like that.
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Old Apr 9, 2008 | 09:58 PM
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didn't they make a rap song about a 2 step?
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Old Apr 9, 2008 | 10:22 PM
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Ciara and Missy Elliot did... Let me see you one, two step
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Old Apr 9, 2008 | 11:09 PM
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Originally Posted by Switt23
Really... what's the point in dumping the clutch at 6k rpm if you start to pull hard at 4k? I thought the point was to set it at the point of best launch (Which would entail starting at the best powerband).

Call me stupid, but unless your runna a full out drag car, dumping the clutch at 6k rpm is a waste of a gear.

The car starts to pull hardest at 4,500k you set it to that (If you can still maintain traction at that point, if not lower a little bit).

Am I just a young stupid kid who doesn't know anything or am I proving a point?... sound like someone has been playing too much need for speed to me.
if you're trying to launch your car at 4500 rpm's without MAJOR traction mods you don't deserve to keep modding. My point is, at the low rpm's he will most likely be best off launching at in this car it is not hard at all to keep it where you want it, and he actually may be better off without a 2 step so he can adjust accordingly to track conditions etc. I'm telling you it's not going to benefit him much at all if any...will probably actually be a negative sometimes. Launch control is only useful if you have GREAT traction and want to launch at pretty high rpm's. i guess you could say that's my opinion, but im telling you it wont help you much at all unless you plan on making some big numbers with your balt and running some wide ass slicks up front.

Originally Posted by Greased
can anyone explain to the noob what a two step limiter is
"neutral" limiter is lower than the actual rev limiter so when you have the clutch in you can rev up to that perfect launch point. Alot of people with evos and stis have em because it is actually kind of hard to not bog them or burn the clutch. like i said, unless you have insane traction like them, you aren't going to benefit much at all from one...but again do it if you want im just telling you from my experience.

Last edited by cakeeater; Apr 9, 2008 at 11:09 PM. Reason: Automerged Doublepost
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Old Apr 10, 2008 | 09:38 AM
  #18  
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Originally Posted by Switt23
Ciara and Missy Elliot did... Let me see you one, two step
no i was thinking about the one by Unk.
http://www.smartlyrics.com/Song63094...ep-lyrics.aspx

but really i would also enjoy a two step for my car also.

Originally Posted by cakeeater
if you're trying to launch your car at 4500 rpm's without MAJOR traction mods you don't deserve to keep modding. My point is, at the low rpm's he will most likely be best off launching at in this car it is not hard at all to keep it where you want it, and he actually may be better off without a 2 step so he can adjust accordingly to track conditions etc. I'm telling you it's not going to benefit him much at all if any...will probably actually be a negative sometimes. Launch control is only useful if you have GREAT traction and want to launch at pretty high rpm's. i guess you could say that's my opinion, but im telling you it wont help you much at all unless you plan on making some big numbers with your balt and running some wide ass slicks up front.



"neutral" limiter is lower than the actual rev limiter so when you have the clutch in you can rev up to that perfect launch point. Alot of people with evos and stis have em because it is actually kind of hard to not bog them or burn the clutch. like i said, unless you have insane traction like them, you aren't going to benefit much at all from one...but again do it if you want im just telling you from my experience.

if it doesn't help then why did my buddy with a dodge neon go from a 11.5 without a two step to a 10.8 with? sure he is putting out 500hp. but he has no major traction mods. just d.o.t street slicks. "not great for a 500hp front wheel drive car". so he bought micky T's for this year.

Last edited by ifknrock09; Apr 10, 2008 at 09:38 AM. Reason: Automerged Doublepost
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Old Apr 10, 2008 | 09:46 AM
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2 step limiters are badass. I heard a 3 step on a WRX STI one time and i loved it. Basically he held it to the floor and at the point the computer takes over the rev limiter and revs to 3500 for a second, then to 4500 for a second, then finally to 5500. Im not exactly sure if that was the rpms but just guestimating. Anyhow it sounded cool.
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Old Apr 10, 2008 | 01:06 PM
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Originally Posted by massivematt
2 step limiters are badass. I heard a 3 step on a WRX STI one time and i loved it. Basically he held it to the floor and at the point the computer takes over the rev limiter and revs to 3500 for a second, then to 4500 for a second, then finally to 5500. Im not exactly sure if that was the rpms but just guestimating. Anyhow it sounded cool.
they sound sick on wrx's and supras..but i still think its ricey..when i think of 2-step i think of honda..but yeah it sounds good as hell on sti's.
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Old Apr 10, 2008 | 04:55 PM
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The two step isn't really about dropping 6k launches (at least on turbo vehicles), it's about spooling the turbo and building boost while you are sitting at the line instead of waiting for it to spool after launching. Try doing that manually - you might be able to load it with your parking brake but it's much simpler w/the 2 step.

But yes, further loss of traction or axle damage can be a messy by-product
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