RTW DC2R

Out of curiousity, and in relation to my buddies WRX, in turbo set ups, how do you build boost while sitting at the line waiting for the tree to drop? If you sit there at say, 5000rpm, is it gonna be building boost or not? Would a BOV that vents to the atmosphere affect the amount of boost that builds up when at the line?

PM-Performance

2 step yo.

RTW DC2R

pete thats it?

interesting...

PM-Performance

who that wants to build boost off the line launches at 5k rpms? im still thinking a 2step will more than do it. i never really kept ane eye on the boost as im on mine , but i know it does. . . search for vids of Boostfed at the track in here. He was spooling like a ************ off the line with his 2step . it was absolutely sickening. . . .

But with that WRX it shouldnt be hard to get that thing to build off the line .

RTW DC2R

I know hes running a UTEC, so I dont know if he has a 2Step option in there or not. Ill have to look into it.

Im guessing that if you are able to build up decent boost on the line, there is no point in launching the car that high(5000rpm) because the boost will "launch" the car anyway.

Thanks for the info

buh_buh

I think if a WRX launched at 5000rpm's its tranny would probably explode. haha.

TravSi

its called "hardcore slipping" with a wrx or any awd.....u can do it, dont drop the pedal and **** wont break and you get off the line like a rocket....this is why i hate awd's

skellator_thoj

iTrader: (1)

2-step all the way

egturbo

i dont think u build boost. cuz when i used my msd 2 step i was launching at 6k rpms and it didnt build boost but it hooked up like a **** with slicks b18 turbo setup

kpt4321

http://users.wpi.edu/~ktarry/files/stutterbox.wmv

2-step rev limiters are your friend.

http://users.wpi.edu/~ktarry/files/adjstutter.mpg

OWNZ JOO

RTW DC2R

cool little vids man. I just started messing with my 2step on the AEM EMS in my car. Its all motor though so its not as fun. how much boost are you able to build up with the 2step on your set up?

blown_LS

You dont want to just drop the clutch on awd cars. For one the car will bog and two you break ****. But if you slip the clutch, the car will build boost and you will take of like ****. Just my 02.

RTW DC2R

yeah we know that much. Just wasnt sure how to build boost while sitting at the line. dropping the clutch is how you break ****.

Turbo D17

In a friend's Supra with the AEM using the 2step rev limiter, we are able to build 10psi at the line before launching.

Shoots LOTS of fire out of the exhaust too... that's a nice bonus.

Anyways, my point being... 2 step rev limiters work really well. Planning on installing one on the Civic as soon as I stop buying road race tires.

RTW DC2R

the AEM 2step is so easy to use not sure if the UTEC has the 2step or not. heading to turbotrix this weekend to see what they can do

15psi of fun

Your right a two-step will build boost at the line but it will only build one or two pounds maybe a little more.

Have you ever seen a pro turbo car hit its two-step at the line and you hear some loud pooping like it is backfiring. The reason this is happening is because along with the two-step these cars are running a stand-alone and with that they can pull out timing at the rpm that there two-step is set for. When you do that you case the mixture to burn out in the manifold witch makes the turbo spool. Well at lest that how we do it on are cars and it works like a charm you can set your rpm and how much boost you leave the line with by where you start to pull out the timing. Like my car with the size slicks I'm using I found that 6300rpm with about 7psi is just about right. We leave the line at about 15psi with are racecar.

Nid Styles

I like it. You can run a 12.32 in the 1/4, but don't know the difference between 'our' and 'are'.

R THIS

guys i have a stupid question, i used to slip the clutch in my integra, but i would never really build boost, this year i am going to be using my 2 step and was wondering if i should still slip the clutch with the 2 step, or is that just going to create a disaster??? or should i just hold it on the 2 step and sidestep it??

15psi of fun

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nid Styles &raquo;</TD></TR><TR><TD CLASS="quote">I like it. You can run a 12.32 in the 1/4, but don't know the difference between 'our' and 'are'. </TD></TR></TABLE>

WhatÂ’s that all about?

You're right I do cars not mid term papers my bad on my shitty grammar.

is this better ****

I was hoping somebody would say something about what I said about making boost at the line not my bad spelling.


Modified by 15psi of fun at 6:24 AM 4/2/2004

PNG

Your - indicates ownership. "Do you want my foot in your *** or what?"
You're - contraction of "you are". "You're gonna get a foot in the *** if you keep correcting my grammar!"

Anyway, back OT. How do you get a turbo to spool at the line? Two words: Automatic Transmission.

IntegracinGSR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by buh_buh &raquo;</TD></TR><TR><TD CLASS="quote">I think if a WRX launched at 5000rpm's its tranny would probably explode. haha.</TD></TR></TABLE>

Subaru was actually having that problem with their WRX's but last year or the year before the decided to beef up their trannys a lil more and they seemed to solve the problem for the most part..

jaxx4k

so if runnin hondata how i get the 2 rev limiter on?

jfoster

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jaxx4k &raquo;</TD></TR><TR><TD CLASS="quote">so if runnin hondata how i get the 2 rev limiter on?</TD></TR></TABLE>

Same question. And are there any cons to running a two step? On a daily driven car?

egturbo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jaxx4k &raquo;</TD></TR><TR><TD CLASS="quote">so if runnin hondata how i get the 2 rev limiter on?</TD></TR></TABLE>

just buy that option and add it. i dont see and bad things with using it with daily driver ur only gonna use it when u race sooo. it should be fine.

vteg

What turbo is your friend with the wrx running?

He can try some of the anti-lag systems(refer to nasioc for more info). Most of the antilag systems retard timing so the combustion event occurs very late and spools the turbo at idle. But this is very hard on the turbo.

BTW, I have done one 5k launch in my wrx. I held that rpm, so the launch was without boost. It felt like being shot out of a cannon. Boost builds instantly also.

If he does a lot of racing he should save up for some sti-ra gears, kaaz gearset, or an sti 6mt.