Lots of people will tell you GTD nozzles are bigger/better etc etc.

If you spend a lifetime on google you will still not find conclusive yes/no that they are a bigger nozzle than the 1.9 (im guessing ABL uses 293s). Lots of experts/bench racers have opions that appear to be formed from chinese whispers on the forums.

I have not found one person/forum who has listed the actual nozzle sizes. Numerical listing/title isnt the nozzle size.

The only conclusive/tested evidence i can find is a yank whom appears to know his stuff stating he has tested 293s (ABL/AAZ type nozzles) against GTD and states you cannot tell any noticeable difference in performance on same engine.

You will read "i put in a set of GTD nozzles and it really woke my car up" you replace any stuffed set of nozzles and it will wake it up. I recently swapped out a set of single stage 293s for a recon set. Properly set up with correct breaking pressure and unworn nozzles giving good/correct spray pattern etc.Any new nozzles will be an improvement.

Contrary to popular belief , 'banging in' a set of nozzles takes a little more than following an internet 'how to'. I paid £100 for a fully recon set including new bleed off hose and flame traps.

 

Thankyou for your your reply i have been looking for ages on the web to come up with nothing. i am part way through building a hybrid turbo and just wanted a bit more squirt lol cheers again stuT:

 

Try www.futbus.com for injectors. (also top engineer and do just about anything)