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I have a stock b5 a4 1.8t with a tiptronic. i was wondering how safe it is to mod with the auto trans, and what path should i go for more power without blowing up the tranny
I've been researching this quite a bit over the past week, we just bought a 2005 B6 1.8T Tiptronic and the wife said she wants a bit more punch. I was also concerned about the tranny being able to hold any power increase.
From what I gather the weak point is the torque converter on the automatics. However, people seem to be going with a Stage 1+ (235hp/275tq) without any issues. I don't know at what point the torque converter fails.
If you're not looking for anything too drastic (ie big turbo etc), an ECU flash Stage 1 or 1+ is easy and affordable.
In the end I decided on Motoza stage 1+ ($389), along with 710N diverter valve ($40-50) and Bosch 440cc injectors ($150).
Other tunes available are from APR, Unitronics, etc,
I liked the Motoza because of the remote tuning and the price is lower than some of the other big names.
what you decided on is about what im interested in. my budget is around $1000 to $1500, so what you did is what im going to look into. i thought it would be way more expensive than that tbh.
But my overall goal is to gain as much speed and power as i can while retaining daily drivability (and not grenading my tranny). no big turbos or anything i just want more speed than it has now, cause my 1.8t is heavily lacking in the acceleration department.
tl;dr = I want to accelerate faster and not blow up my transmission.
Keep in mind the same options that are available for the B6 chassis are not available for the B5. I don't believe Motoza supports the B5 chassis and APR, Unitronic etc only list a Stage 1 upgrade, which is a re-flash on stock engine (including stock injectors).
I also have a 99 A4 1.8T, manual transmission, and just ordered a re-flashed ECU from a guy named k0mpresd on Audizine (he is affiliated with Reflect Tuning :: Home). His tune doesn't call for upgraded injectors and is in the $250 range, and will increase HP by about 50 (160 to about 210). The ECU is en-route so I will update in a week or so on how it performs. You'd have to touch base with him to determine the compatibility with the auto trans.
This option would leave you with $ for other mods, like suspension etc.
07-24-2016, 06:17 PM
Starting mods
