couple of Q's on TT VVTI power delivery, remap possible?

[wrighty338]

Hi guys, really new to supras so not sure what to expect after only 1 drive - can anyone offer up some guidance?

 

I picked up my vvti tt supra at the weekend...iv only driven it for a day and the mods are: uprated fuel pump, Nur spec exhaust, and a blitz boost controller. Intake and intercooler are standard. it looks to be running 1 bar boost

 

I have a dyno print of the car at 390bhp so its fast enough while i learn the car - however it seems that when it comes on boost it comes on rather strong and 'all at once' is this normal power delivery for a vvti twin turbo?

 

The car feels great im not complaining at all as its a lot of fun, but is it possible to remap the stock ecu or install a piggyback chip to do so or is this generally a waste of time? im considering a fmic if this is the case simply as this will bring it in line with a 410bhp bpu install but otherwise il just save my money and keep it twinned until i can afford a single turbo kit and standalone ecu.

 

Edit: will the stock twins struggle to fill a 4' fmic kit?

 

cheers

Edited October 5, 2016 by wrighty338 (see edit history)

[fastcar]

Don't bother with a front mount the stock turbos will just be trying to fill the intercooler. Stick with a good condition sidemount, will get much better response from the stock tubbys

[Scooter]

You may have the turbo's in true twin and not stock sequential. Look up ttc or true twin conversion on here and check your vsv's pipework.

 

You should get 0,7-0.8 bar on the first turbo fairly quickly and it hold there till close to 4000rpm, do you? Or does boost pressure build more slowly to max boost?

[wrighty338]

Thats what is sounds like