Fiat Coupe Forum
- Funded by the Club for the benefit of all owners
- Please consider joining the Club to help keep the Forum running
- Or you can choose to make a Donation
JOIN THE CLUB

Donate with PayPal button
Forums Calendar Active Threads Forum Help
Fiat Coupe Club UK
join the club
Fiat Coupe Forum
 
» Announced
    Posting images

» Related sites
    Main club site
    fiatcoupe.net
 
Who's Online Now
1 registered members (Edinburgh), 884 guests, and 3 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums48
Topics103,723
Posts1,170,146
Members1,666
Most Online39,516
Apr 16th, 2026
Top Posters(All Time)
barnacle 33,794
stan 32,123
Theresa 23,347
PeteP 22,311
bockers 21,083
Edinburgh 18,920
JimO 17,919
Nigel 17,386
Previous Thread
Next Thread
Print Thread
Exhaust standart #1634140
23/07/2019 07:35 23/07/2019 07:35
Joined: Dec 2011
Posts: 49
spain
P
patadaturbo Offline OP
Discoverer
patadaturbo  Offline OP
Discoverer
P

Joined: Dec 2011
Posts: 49
spain
Hi guys
Is it possible to exceed 300 hp with standard exhaust line in a 20vt? without catalyst

Last edited by patadaturbo; 23/07/2019 07:35.
20vt forever
Re: Exhaust standart [Re: patadaturbo] #1634147
23/07/2019 14:58 23/07/2019 14:58
Joined: Dec 2005
Posts: 17,386
Staffordshire
Nigel Offline
Forum veteran
Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,386
Staffordshire
It is possible, but only just. The back-pressure will be very high, meaning that the turbo is having to work harder than it should. This in turn means the exhaust gas temperatures will be high

The first two or three feet of exhaust is the critical bit, so I would recommend you find a larger-bore downpipe as a minimum
Re: Exhaust standart [Re: patadaturbo] #1634157
23/07/2019 21:33 23/07/2019 21:33
Joined: Dec 2011
Posts: 49
spain
P
patadaturbo Offline OP
Discoverer
patadaturbo  Offline OP
Discoverer
P

Joined: Dec 2011
Posts: 49
spain
okay. Thanks.

I understand you. I will put a downpipe of 3, and also the intermediate section of 3, and leave only the standard silent end, not to make much noise

20vt forever
Re: Exhaust standart [Re: patadaturbo] #1634169
24/07/2019 15:27 24/07/2019 15:27
Joined: Dec 2005
Posts: 17,386
Staffordshire
Nigel Offline
Forum veteran
Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,386
Staffordshire
You will probably need a centre silencer as well - the exhaust can be very "boomy" at cruising speeds with only a rear silencer

Privacy Policy · Forum Rules · Mark All Read · Fiat Coupe Club UK
Powered by UBB.threads™ PHP Forum Software 7.7.1
(Release build 20190129)
PHP: 7.4.33 Page Time: 0.014s Queries: 14 (0.009s) Memory: 0.6045 MB (Peak: 0.6515 MB) Data Comp: Off Server Time: 2026-10-12 12:41:06 UTC