TechnoTorque or Underdrive Pulley - 986 Forum - The Community for Porsche Boxster & Cayman Owners

dsisco · 12-02-2010, 05:00 PM

Thanks guys for the feedback,

My water pump has just blown so looks like ill be doing the pulley while im in there.

will order from Tarret engineering or flat 6,

any reccomendations? or are they all pretty much the same?

will let you know how it goes

thanks

Johnny Danger · 12-03-2010, 05:39 PM

Quote:

Originally Posted by dsisco

Thanks guys for the feedback,

My water pump has just blown so looks like ill be doing the pulley while im in there.

will order from Tarret engineering or flat 6,

any reccomendations? or are they all pretty much the same?

will let you know how it goes

thanks

I installed the BBI on my vehicle about a year ago . At the time, it was considered the lightest and best designed pulley of the lot. However, Jake at Flat 6 has since come out with his own which I'm sure is excellent also.

dsisco · 12-09-2010, 08:30 PM

ended up going with the newest design from BB1 from tarrett engineering,

will be installing over the weekend along with my engine mount, water pump and LN thermostat,

will let you know how it goes.

ps. is there any gains to be had from removing the cats on a 2.5?

thanks

JAAY · 12-09-2010, 08:57 PM

8hp. and a check engine.. Fabspeed makes some sweet bypass pipes.. That is what I am running.

Mark_T · 12-10-2010, 08:09 PM

"ended up going with the newest design from BB1 from tarrett engineering"

Are you changing to a shorter belt as well, or were you going to see if the oem belt works? Any trouble with grinding down the boss that apparently is in the way?

Be nice to see some pics!

Mark

dsisco · 12-11-2010, 10:34 PM

Quote:

Originally Posted by JAAY

8hp. and a check engine.. Fabspeed makes some sweet bypass pipes.. That is what I am running.

how do you get rid of the check engine light?

Johnny Danger · 12-12-2010, 05:19 AM

Quote:

Originally Posted by dsisco

how do you get rid of the check engine light?

To clear the CEL, you would have to reprogram the ecu in order for it to disregard the fact that the cats have been deleted. In my experience, going "catless" resulted in a significant loss of low end and mid range torque. Since the 2.5 engine only has one set of cats, you would be better off upgrading to a set of high quality lower cell units. This, however, can be an expen$$$$ive .

JAAY · 12-12-2010, 06:51 AM

Probably true on the 2.5. I have a 3.4 so in my case it is different.

dsisco · 12-13-2010, 03:23 AM

Quote:

Originally Posted by Johnny Danger

To clear the CEL, you would have to reprogram the ecu in order for it to disregard the fact that the cats have been deleted. In my experiencing, going "catless" resulted in a significant loss of low end and mid range torque. Since the 2.5 engine only has one set of cats, you would be better off upgrading to a set of high quality lower cell units. This, however, can be an expen$$$$ive .

my ecu already has powerchip software,
so u don't recommend removing the cats? losing torque is the last thing i wanted to do,