my new exhaust,what yer reckon???
Turbo Mini Forums

decided to try something a bit different...







mark

that looks familiar :) all mine is is a straight piece of stainless from the downpipe to the can aswell.

Does it sound as nice as it looks though?

yes its sounds good

mark

what doewnpipe is that?

Previous Engine: 1040cc Morespeed engine, 1275 turbo head T2 Turbo Mirage Manifolds Megajolt
Previous engine: STD metro turbo, megajolt
Drives: 399bananahp (flywheel) Honda Civic Vtec b18c4 T28 Turbo 1968 Mini

Megajolt maps to download: http://www.jamesfawcett.co.uk/cms/index.ph...&gid=3&Itemid=3

avonbar turbo item i believe

mark

looks good, a bit different, don't see a problem.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

you will lose power using that backbox,

U snuck up and rolling roaded his car like?

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

sauber, I was thinking of doing the same as mark, why do you think he will lose power?

Team Racing

i had my car rolling roaded with an exhaust pretty much the same as that on it when it was N/A. came out with 61bhp for an MG engine with that exhaust and a K&N. not too bad seeing as it was a £50 special engine that had done over 100k miles when i put it in my car. did go bang a month later though :)

we tried the same exhaust on a 1380,
lost 15bhp against an rc 40,correct me if im wrong but turbo exhausts are even more critical for good results,back pressure etc.

I was under the impression that the least backpressure the better for a turbo? is this the case?? I was planning on running twin bike cans

Team Racing

i thought turbo cars worked better with the least back pressure aswell jim.in fact i thought it was only 2 strokes that required back pressure to get the best from them

mark

Edited by mark4765 on 21st Aug, 2004.

correct the least back pressure the better,but the backbox has to have the correct packing to work right,thats why companys like maniflow
make a backbox especially for turbos.

sauber I see what your saying mate But that's not ALWAYS the case. it just depends on what you want from the car.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

hmm, found this article a few months back when choosing my exhaust ..... could help settle a few arguments between you guys ....

http://www.nsxprime.com/FAQ/Miscellaneous/exhausttheory.htm

If you are short on time/patience, just read the last 3 sections. Very useful i thought anyway. It seems back pressure isnt quite as important as everyone makes out to be.
The way i see it, your exhaust system should work just fine buddy :)

NO LONGER A <3 lover of BOLT-ON plastic <3 .... (and DOUBLE proud of it)

i have two of these backboxes for sale,
carbon fibre, £30.00 each

what exhausts? no pic came up?

NO LONGER A <3 lover of BOLT-ON plastic <3 .... (and DOUBLE proud of it)

there was no pics,they are the same as the ones marks got here.