The tune is $2,499.99 and the high flow air filter set is $199.99. This will give you an additional 136hp and 145tq. Is it worth it?

 

I would say yes but I could be bias...I have the Weistec catless downpipes, stage 2 tune and BMC drop in filters. My coupe runs very strong!

I have two tunes. I have their pump gas tune and a custom Weistec race fuel tune for when I go 1/2 mile racing. I am very happy with the cars performance!

 

How do you go back and fort between race and pump gas tune without removing the ECU for bench flashing?

 

Weistec now also offers ODB2 flash tunes

 

Hand held unit...it has three tunes loaded on it...Stock, Pump Gas and Race Fuel. Very handy and easy to change the tunes.

 

Curious - how long does it take to upload it with Weistec (assume they use Genie too?). My updates take what feels like forever (10 ish minutes) while I always hope the battery does not crap out or some other accidental interruption happens (I do put the car on a 15A constant charger while updating).

 

This must be very recent developments. I reached out to Wiestec a month or so ago for a tune and I was told I have to go to an authorized dealer for my ECU to be removed and bench flashed. Perhaps it needs to be removed for the first initial flash then the hand held for subsequent flashes? Did you ever do a before and after Dyno? Thanks.

 

Never timed it but 10 minutes sounds kind of long to me as I have swapped tunes a few times. But if I had to guess somewhere between 5-10 minutes???

And Weistec uses the Cypher handheld units (see attached).

I have done my changes without a charger or tender but I was recently talking to a tuner who said I really should to keep anything weird from happening...he also suggested always doing it with the door open so the car doesn't shut down.

 

Yeah, thats the standard handheld tuner most use. I keep my window open...

 

IDK about that? My car was built and tuned back in March 2020. See my prior post as Weistec uses the Cypher hand held. I did have one of their authorized dealers/installers do all the work but it was all done with the handheld and they never removed my ECU.

Kind of a long story but I DID NOT do a "before" dyno because I was having my build done two weeks out from a 1/2 mile event. Anyway we knew we were going to have Weistec do a custom Race Fuel tune (because their stage 2 tune is a pump gas tune) so I was told to show up with 1/2 tank of 101 race fuel...so a stock dyno would have been a waste of money. After the DP's were installed it took a few days of back and forth with Weistec looking at logs from the dyno runs to dial in my race fuel tune. Again all three tunes were loaded into the handheld and I was also told that Weistec keeps all the tunes on their database so if anything ever happened to the handheld I can still get my tunes from them.

So onto the dyno results...now I am not worried about HP numbers...I am more interested in my trap speed in the 1/2 mile but I realize additional HP/TQ help a car go faster. Also the dealer who did all the work is known (locally and by Wesitec) to produce lower numbers then most but they swear they do not mess with the numbers (like some tuners do) and their dyno is true. I have not yet dynoed the pump gas tune because two weeks after my build, I went 1/2 mile racing and then we had a very hot summer so waiting for the cooler weather to go have the pump gas tune dynoed. But in the course of tuning they had to do the Race Fuel dyno and my results were 560hp / 580tq at the wheels.

Sounds pretty good to me and all I know is I gained 7 more miles per hour in the 1/2 mile (146 stock / 153 tuned) and it was a hot and windy day in late March and all the really fast car guys were complaining about being slower than normal that day. I will run again this fall/winter and hopefully in some cooler weather and my goal is 155 or faster.

 

Yeah, well always good to do a before dyno just for the sake of at least a baseline and a data point more than anything else. Everybody's car is different. It also keeps tuner 'claims' honest. I'll circle back to Wiestec regarding the hand held ODBII flashing. Thanks for the information!

 

If you have a 2020 car, they can't be tuned via the OBD port as of yet and have to be bench flashed. I'm not sure what changed with the 2020 cars that made that the case.