stage 2 questionare, lots of ? marks guys, need some help!
the fm wastegate, shown and proven to be better in several ways, fml for purchasing the s2 before reading up on the fm, but other than that, the s2 ecu is all precet tunes and diablo can actually derive more power from ur stock ecu...how is that possible, couldnt u get into the stage 2 tunes and adjust them with the dsp also and get rid of the rich tune that the s2 is so famous for?please explain. the system im running is a agp cold side with turbo xs rfl, 3 inch turbo cat w/ 3 inch dp, 3 inch agp cold air,msd coils, manual boost controller, and bfmic. any ideas on how to maximize this stage 2 that i just got, besides the fm wastegate. id like to get max numbers possible, i see a lot of numbers thrown around on the site, hopefully checks this and gives me something i can put my thumb too. thanx.
The way that a stock car can get more power with a simple reflash is because the components that Dodge put on the car, i.e. fuel injectors/wastegate are not being used as efficiently as they are capable of from the factory. There is still untapped power and with a simple tune, you can take advantage of those areas on your fuel tables where the car is running conservatively.
Get the Predator. Ideally, if you had known about this before getting the s2 kit, the only thing from the kit you would need are the injectors and 3bar map and tip sensors. While flashing it, whoever is tuning the car would need to take into account the 3bar sensors to allow for more boost/better tuning ability. Doesn't matter if your flashing the stock or s2 ecu, it's still the same unit but with different tunes for different components.
You don't need to worry about that though, just get the predator with your s2 kit and you'll be running better than a stock + predator tune or a s2 only car. Most guys with s2 plus predator are seeing close to 300whp 350 tq while those with stock cars + predator are seeing 260ish whp 300+tq.
I have S2 with the DSP and i'll be the first to tell you that there's a lot of room left in the S2 factory tune. I've been able to raise the timing as much as 5*@3k with no knock and I still have to work on the afr's. Those 5 degrees are instantly noticable now when I go WOT! You wont be disappointed with the diablo. I can't give you actual numbers, because I'm not using a dyno to tune.
rrmike, ur setup is pretty ideal with what im looking for im sure...sounds similar, only questions are, did your dsp even out your richness at all? i got the N2MB dual feature wot box for some good consitent wot, so any additional info or head's up u have running the dsp and s2 would be much appreciated man. or maybe even little perks you have come by that have helped you in the long run like perhaps mods i didnt have listed, forgot the 62mm tb, but other than that. thats all im running so far.
are these numbers 4real? you can get close to 300whp with stage 2 and a dsp? what other supprting mods are needed?
Maybe a FM WGA and Walbro 255 lph fuel pump to top off the s2+dsp. Pretty sure that's all you really need to get close to 300whp. You could run meth to keep egt's and knock down while running 21+ psi. However, this will only begin to increase torque and will drastically reducing the life-expectancy of your turbo. Better intercooler up front will keep things cooler if you're going to be running back-to-back so you don't get heat soaked. You could start porting (throttle body, IM, exhaust mani, turbo) but you'll realize that you'll be spending a shit load of $$$ for limited gains when you could just upgrade to a bigger turbo setup for about the same price.
ya ur not kidding, ive spent about 3k on supporting mods and making sure i had 3" everything and good quality products...its been a pricey road, just wanting to have as much knowlegde as possible once i go to get the s2 kit puton ,u mentioned stating to who ever reflashes the pcm that i have the 3bar and tip sensors? is that a different flash or tune they program or still similar reguardless of sensors?
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Black 04 Srt 4 Neon
Stage 2, 3" turbo cat exhaust system with 3inch d/p, agp dog bone mm's, agp solid tranny mount, dc sports f/r strut bars, tein basic coilovers, 17" gloss black boss rims, projector headlights and fogs, l.e.d tails, agp 3" cold air intake, granatelli coil pack n wires, dna bfmic, agp threaded cold side up-pipe with turbo xs rfl bov. hallman manual bc, and f/r zinc plated d/s rotors.
If they flash your s2 ecu, the 3bar sensors will already be recognized because the s2 ecu is preprogrammed for those sensors. If they flash your stock ecu, you will need to mention it to them.
i have stg 2 with dsp and i love it. i put down 270whp and 330wtq at 17psi. since then i've added more boost and i love it. and as of right now im wanting on my e1.5 to come in so i can break the 300whp mark.
rrmike, ur setup is pretty ideal with what im looking for im sure...sounds similar, only questions are, did your dsp even out your richness at all? i got the N2MB dual feature wot box for some good consitent wot, so any additional info or head's up u have running the dsp and s2 would be much appreciated man. or maybe even little perks you have come by that have helped you in the long run like perhaps mods i didnt have listed, forgot the 62mm tb, but other than that. thats all im running so far.
It leaned out nicely with the DSP. First, I got the boost where I wanted it, 22-16psi. Then I started adding timing until I saw knock. Then, of course, I backed down to eliminate the knock. Once I did this, I was still running rich so I moved on to leaning out the fuel. After a nice tuning session today, I'm back to, Boost:
+10%@3k
+9%@4k
+8%@5k Timing:
5*@3k
4*@4k
2*@5k
Fuel:
-8%@3k
-11%@4k
-14%@5k
I'm right on the edge of knock with the timing and, believe it or not, I can STILL pull more fuel. I'm running about 11.5 across the board with these numbers.
It leaned out nicely with the DSP. First, I got the boost where I wanted it, 22-16psi. Then I started adding timing until I saw knock. Then, of course, I backed down to eliminate the knock. Once I did this, I was still running rich so I moved on to leaning out the fuel. After a nice tuning session today, I'm back to, Boost:
+10%@3k
+9%@4k
+8%@5k Timing:
5*@3k
4*@4k
2*@5k
Fuel:
-8%@3k
-11%@4k
-14%@5k
I'm right on the edge of knock with the timing and, believe it or not, I can STILL pull more fuel. I'm running about 11.5 across the board with these numbers.
wow....you dont know ur 1/4 of dyno numbers? im sure ud be putting down nice times man. sounds like uve really taken ur time. i like it. any issues once the stage 2 came back installed? needing to reset the pcm ur self or the cars slower or any worries i should have a heads up on? u may have mentioned it also but which wga r u running again?
I've never run the 1/4 and the last time I was on the dyno was pre-dsp tune. I've never had any issues with my S2. I bought it used off this board back in '07, installed it myself and it's run good ever since. I'm getting ready to reset my pcm because i've built up a couple degrees of LT Knock that I need to get rid of. I'll take a couple hundred miles or so for the pcm to relearn, but the adjustment i've made to the tune will remain while it learns. WOT pulls are necessary so the pcm can adjust to that situation as well. I'm running the AGP WGA. I've always run pcm control, but just recently a removed all the preload from the wga and started to control boost via the DSP. Instead of spiking, the boost now builds quickly and holds longer before it starts to drop.
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stage 2 questionare, lots of ? marks guys, need some help!
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