I just got back from ATS yesterday. I had purchased their twins last Jan. While they had done everything that twins are supposed to do, i.e. lower egts,... great mid and top end power,.... I was just having a problem accepting I no longer had my tire roasting low end. It was a bit laggy and I had found my best alternative was to come away from the light at about half throttle and then gradually lay into it. It was a better experience than just standing on it. This is without boost braking now so don't get confused with out-of-the -hole launch when boosted which was definitely a roaster. I spent numerous phone calls talking with the guys at ATS and they were definitely listening,.. if not to me then to others also. I was promised a new version of the Aurora 2k and they called last week and said they had one in and it was ready. I wanted them to set the whole twins thing up to insure everything had been checked so that's why I drove out there.

Clint, Mike and Jason all were great to work with and gave the truck all the tweaking it needed. The conclusion and initial dissatisfaction I experienced was due in large part to my setup being highly overfueled. Not the thing a guy wants to hear who has but some big $$$ in their setup. But, I took the chill pill and decided to put the bypass in on my TST. Right now I'm running the PPE HOT on Extreme and the EZ on lvl 2. Now that is with 40% EH injectors which are somewhere around 100hp to 120hp sticks. You can see the rest of my setup in my sig. So here I am ready to try this setup with the new Aurora 2k. From a stop and just standing on it (WITH TWINS) it will again roast the tires! Yes!! Tomorrow I'm gonna pull the PPE off and put the SMARTY back on and try it the same way with the TST looped out of the mix. I will jump back in on this thread tomorrow and let you know how it worked.

The lesson learned here is that I probably should not have done the injectors. You add the additional fuel in with the expanded fuel duration and you've got a situation that is entirely tooooooooo rich and all you are doing is drowning the launch and the turbos couldn't lite early enough to provide the air needed for the mix,... hence an uncool lag. What a difference. The guys from ATS nailed my problem right away and it just took getting it through my head and with the new turbo I now have the best of both worlds with a rocket launch and the power that twins bring to a rocket run. Not all is lost as I have some choices here that need to be dyno proven but at least I have decided that anything short of the strip where I will be power boosted will not see the entire battery of power makers at one time.

Hope this helps with guys thinking about ATS Twins. As stated previously in threads,.. fit and finish is outstanding. Tks.

 

OT, I know how you feel....I had firehose nozzles from II and they were way too big to use without a couple nitrous foggers....so I got a set of small Flux 3 hellfires and now I spool like crazy and don't put out the fire. Now I can make big power 450hp or so with the TST on 1 and Smarty on 1....The electronics can be now ramped up to take the truck way up in power. 450hp is very nice for a daily driver. ks

 

Good review, now if I just had 5K to drop on a set of twins.

 

I continued my testing of twin spoolup by removing the PPE and loading the SMARTY. It like the PPE is stacked with the EZ and the TST is by-passed. Spoolup like with the PPE/EZ is major league improved by by-passing the TST. My conclusion is with the twins you will get much improved spoolup and low end/mid range performance upgrade by limiting low end fuel introduction and duration. The difference is night and day.

I intend to just leave the TST on the truck to see if it helps at the track when using boosted launches. I suspect it may help in the mid range and top end but for everyday driving and street performance your twins will work MUCH better without the long duration and heavy low-end fueling (at least to the degree I originally was using). Hope this helps others. My $.02

 

My truck spools quicker with both the TST and the Smarty (with the MP-8 in there too!) than with either by itself.

From slow to fast...

TST then TST/MP-8 then TST/Smarty then MP-8/Smarty then the fueling daddy.... TST/Smarty/MP-8.

Loose that EZ...that is the problem. Get a MP-8.

 

Sorry,... nope that isn't it as I tried that too. It may be peculiar to my truck alone,.. but I don't think so since Clint at ATS nailed it right off. I thought you were running the Aurora 5k by itself? Did you upgrade to the twins? I'm speaking directly to getting twins to spool as quick as possible and by making the suggestions or observations I have listed above and previously,.... I have quickened that process in a major way. I'm not downing TST in any way,.. I love mine. It's just that with the mods "I'm" running then on the street it is killing me but yet I wouldn't be surprised that it will be the right combo for the strip. Just haven't tested that yet. In someother combo it may be the cats meow,...

 

I think the TST is a necessary part of the equation to keep things spooling upward. With heavy fueling and injectors ....duration at low boost is not your friend. Use the TE settings on 1 or 0 and only run the Power settings .... especially with the Smarty. I wanted to merge left today and buddy wanted to cut me off.....I'm on Smarty 1 and TST 1 and I nailed it from 20mph and slipped the tires for about 3 truck lengths then hit 60mph....buddy was so far back all I could see was the little cloud gift I left him. ks

 

I still have the 5000 only bolted up to the truck...so I know its not a fair comparison...heck the sticks alone make the two trucks totally different animals.

I guess what I wanted to say is...I think it is more the fueling combination...than what your trying to spool...so it may be not fair to say that it was the TST's problem...more like a total combination. I would think it would be easier to "bog" down my single than your twins...but EVERY truck is different and tuning is the key.

I don't use more then SW#5 on the "soft TM" program and no TE setting above 1 for that exact reason...to much smoke...seems like slower spool. I then tune in the MP-8 to give me the maximum rail pressure I want to see.

 

Cq & ABC I agree with you guys and I think we are all saying the same thing and especially Cq's input in his second paragraph "more like a total combination problem"!! You got it,......and I hope to nail this down better tomorrow. I called my local dyno guy and they have an option of tuning where I'll have the time to change out these programs and try a bunch of combos and try to nail the best numbers down. Tks for your input.

 

Not surprised to see that you are happy with your trip to ATS, they treated me like royalty when I was there as well. Great People to deal with

 

So with my little puiny set up, I should spool faster with low end fueling turned down as opposed to up?

 

Big singles love dumps of fuel from what I've seen and heard....still too much smoke but they still tend to eventually light unless the fuel dump is silly.

4x4...little turbos spool so quick the more fuel the better until they overspin and twist the shaft off. ks

 

Try smaller EDM's...

Big injectors sux...on 3rd gens. LOL

I am about ready to spring for Flux's...small ones. My stockers must have been "naturally" EH'd by now! LOL

 

CQ, I think you meant....big extrude hone injectors suk on 3rd gens....I can assure everyone that Flux 3 Hellfire EDM's are good for a solid 150 to 200hp if you have the high pressure and volume of fuel and air. ks

 

I can't wait to get my Floor-It stage 2, A bigger turbo, and a set of Flux's!!! I think I would stop if I could break 700...