ok, after doin multiple searches through different sites and testing my truck in every way i still cant find the sweet spot for the boxes. the tracks are now closed for the season and im looking for next season. last season my best 1/4 mile time was 13.47 with a 1.90 60 ft. that was with the tst (twins) on 5x6 and the ez on 4. never tried the tst any higher but the ez was best at level 4. each level i moved it up starting at level 1 gained me a 10th of a second. i also have a bddl that ive never raced with but it feels like with that on performance setting and the tst on 5x6 it is real close to the ez stack. when i raced before the tranny was modded and the twins i ran the bddl on extreme and the tst on 5x6 . now im hearing thats not a good stack but it was the best for me before. is there a sweet spot for all 3 boxes or is just 2 enough to get me into the 12's on just #2 (thats my goal)? i think the truck can do it its just finding out how to. should i turn the tst up a little or maybe down a little and turn the other boxes up? i have a 150 shot of nos on the truck but really dont wanna use it until i cant get anymore out of just #2. also when dragracing are you taking it out of od or keeping it in ive been just leaving it in? thanks in advance Justin



2003 ho quad cab 4x4. 2" level kit 315's. fass 150 gph,bd rad device,dtt billit tranny,twin turbos hx35/40 over a ht3b, flux injectors, arp studs, 5'' str8 pipe tst powermax cr (twins program), bddl, edge ez.

 

just bumping

 

I have fairly close to the same combo as you, and my best dyno numbers come from TST 5-4 and EZ 2 with the flux injectors. Any higher on the TST and it'll start to pull power and kill the EGTs. I'd like to go higher on the EZ, but feelings for my injector tips have stopped by curiosity so far... . I also found that the twins program slowed me down. What's your truck weight and trap speed?

 

banshee,
the truck weighs #6900 give or take a few pounds. trap speed @ 13.47 was 101.71 mph. tst (twins) on 5x4 with the ez on 2 gave me 13.75 @ 99.71 mph. not bad but not were i want to be. egt,s are good with tst on 5x4 and ez on 2 but hot when ez goes up to level 4. iI dont run any pressure around town just at the track.. im gonna try the bddl on performance this coming seaseon instead of the ez to see if that helps at all. dosnt seem real different by my sotp meter though. maybe try all 3 boxes if i have to. are u running out of od at the track or keeping it in? did tim barber do any of your work? thats who did all mine.

 

I think Johner does most of his own work. I have heard from several people that the twins program has slowed them down. With the flux injectors sometimes trucks do better going lower on the tst than 5/4. Depending on the truck but 4/4 and 4/3 usually show increases. Tim

 

hey tim

i tried the tst on the 4/4 4/3 settings with not so good results. thats with all different levels of the ez. seems like the ez on 4 and the tst on 5/6 has been the best for me so far. havent tried any higher on the tst at the track but sotp driving feels like i gain power all the way up to 7/7 with the ez on 4. What dosnt make any sence is the better dyno #'s dont give me the best 1/4 mile times. i think im gonna try the ez on level 2 and the bddl on tow or performance and then start with the tst at 5/4 then 6/6 then 7/7. 6/6 and 7/7 get real hot real fast though . so well see how it goes. not worth melting things for a couple of tenths in the 1/4 mile.

 

I have a good friend with an HO like yours, flux injectors, 40/3B twins, TST twins version, BDDL, and VA C3.1. He runs a triple stack, although more conservative, and finds it works best for him. He runs the BDDL on the Tow program as he likes the manners of that program the best and his truck just generally runs better with the BDDL programming verses stock programming. With the BDDL on Tow, TST Twins on 5/2, and VA C3.1 on 100% (which is like 30hp peak worth of pressure?), he dyno'd 640hp/1250tq. This is a dually, manual trans, so no 1/4 mile times.

I have a similar setup as well except my SO engine and I'm running the standard TST program with the BDDL. On my SO engine, that combo works the best.

Running the BDDL Extreme program with the TST seems to have too much timing advance for daily driving. Sitting at idle or at a steady cruise with the Extreme program loaded, I can turn the TST on and you can hear the difference. It doesn’t sound good and most would stop at that point and never make a 1/4 mile run with it. When just scooting around town at part throttle, this combo seems weak with lots of pinging. However, when you go WOT and start stretching the pulse width out, it effectively retards timing a little. Very fast and smooth combo at WOT.

The BDDL Performance program runs very well with the TST and this is the combo I use for daily driving. It will scoot pretty good.

I only load up the BDDL Extreme program for race day and it does make a good bit more power over the 90hp program when stacked with the TST. The extra pressure and timing advance with the Extreme program seems to help.

My best times come with the standard TST program on 6/6 regardless of which BDDL program I am running. I guess that is the max for duration on my rig without loosing power. Any higher on the TST and power goes down, smoke & EGTs go up.

BDDL 90hp, TST 4/4, consistent 13.8s
BDDL 90hp, TST 6/6, consistent 13.4s
BDDL Extreme, TST 4/4, consistent 13.5s
BDDL Extreme, TST 6/6, consistent 13.1s

 

akram,
that is exacly the kind of post i was looking for man. thanks a million.. i recently tried the same thing as you with the bddl on extreme and the tst on 6/6 and just like you said under light throttle it feels weak but man hold on when you hit it.how is your egt's at this setting. mine were hot to say the least but seemed to cool a little the faster i went. what setting on the ez do you think is comparable to the setting your buddy dyno'ed 640 with. also how do you like your water meth kit. i have nos but was considering w/m. thanks again.

 

TST on 6/6, BDDL on Extreme, 13.1 seconds, EGTs hit 1480*F. I have three EGT probes. That is the hottest probe which sits right in front of the #5 exhaust port. It has proved to be my hottest cylinder. The rest can be anywhere from 150*F to 175*F cooler.

I like the water/meth OK. It won't make the power NOS will, but is a little more gentle on parts. With the configuration above, 50/50 water/meth mix running the pump at about 170psi and one 300 jet and one 600 jet, the truck runs 12.9s with EGTs maxing at 1450*F. Water/meth takes time to work and my max EGT mark on the track comes and goes so fast that the EGT benefit is not too great. Max EGTs would be at about the 1/8th mark. They drop a little bit by the time I get to the end of the 1/4. Pulling a big hill where I can stay in it, the water/meth will drop EGTs about 175*F with my 50/50 mix. I mostly just use it for a little kick at the strip though. I have another 600 jet that I plan on running next summer. Two 600 jets and bump the pump up to about 200 psi. That should provide a pretty sizeable kick.

 

akram,
wow 1480 is unreal for that combo. my egt gauge only goes to 1500 and its there in a sec but comes down to 1450 or so but when od kicks in up she goes again. do you take your truck out of od at the track or leave it in? i usually leave it in just so thats one less button to push but maybe i should take it out. have u tried both ways?

 

I actually have tried it. It is nothing to do 20+ runs in an afternoon depending on how long the line is, so there is not much I haven't tried at one time or another. With overdrive off, I just about run out of RPMs before I run out of track, so it doesn't do too well for me. I just leave overdrive on and lock the converter as soon as I hit second gear, 4X4 HI all the way. Works best for me.

 

I think I just sold my ticket (BDDL) and am going to miss out on 13's I guess I'll find out soon enough.

 

ramirezh,
i think youll see 13's with a tst /ez stack. tst 5/6 - ez on 4 yielded me a 13.47 in the 1/4 mile.

 

It looks like your 60ft time suck. I take it you have a Built up tranny w/ billet shafts????? Anyways you could make up a few thnths at the light. Put it in 4WD and stand on the brake pedel and slowly build your boost up to 20psi and when it turns green let off the brake asap and floor the gas. once your in 2nd gear lock your TCC take it out of 4WD. Almost redline 3rd gear using the OD button.

Just locking the tranny after 2nd gear cut 2/10's of my ET. These 3rd gens seem to be slower at the track then 2nd gen's with similar mods. Heck my little old 1999 215HP stock with edge drag comp and full DTT was running 14.6 after mach 5 injectors future b1/b2 twins at 600hp I would of been low, low 12's and high 11 w/ mach 7's.