The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Re: performance advice S40-V40 2001

posted by  someone claiming to be Arno Griffioen on  Sun Dec 10 10:21 CST 2000 [RELATED]

The 2001 Phase-II cars may be better in this respect, but the final silencer on my 1998 T4 was the biggest source of backpressure on the entire system. Just replacing that gave a much better feel when opening up the higher rpm's under full boost. Turbo's hate backpressure. Sorry, don't have any dyno data.

Of course the 2 1/2" stainless TME catback system I'm now runing is even better in that respect. It pulls strong in 4th gear all the way to 125mph (top end used to lose power pretty quickly with the stock exhaust). Top speed in 5th depends a lot on the outside temperature. Lower=higher top end, but it does at least 150mph.

Another thing to keep an eye out for (and perhaps something to install in the car) is the exhaust/turbo temperature with an upgraded ECU program and higher boost. If it gets too high (add an EGT gague and a boost gague) it means you need a better flowing exhaust and (biggest gain in this area) downpipe, because the hot gas isn't removed quickly enough. You don't want the turbo or cat to overheat as that can kill them off pretty quickly.

Bye, Arno.





USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.