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downpipes etc #1608251
21/09/2017 22:04
21/09/2017 22:04
Joined: Aug 2017
Posts: 338
Camberley, Surrey
J
jonnyboy54321 Offline OP
Making a profit
jonnyboy54321  Offline OP
Making a profit
J

Joined: Aug 2017
Posts: 338
Camberley, Surrey
All
Have done a search etc but confused.
My 20vt project is ongoing. Just got a nice Milltek system for it.
Engine likely to come out as have got belts/alternator/clutch/eng bay refresh to do.
While it's in bits, would you suggest a bigger downpipe? Race cat etc? It's done 167k but had an engine (23k) at 120k.
Otherwise standard.
Cheers
John


Always seem to have too many 20VT's to count......
Re: downpipes etc [Re: jonnyboy54321] #1608257
22/09/2017 06:28
22/09/2017 06:28
Joined: Oct 2008
Posts: 6,799
In the coupe.
magooagain Offline
Club member 259
magooagain  Offline
Club member 259
Forum is my life

Joined: Oct 2008
Posts: 6,799
In the coupe.
What's the intention for the engine? Raise the hp?

Standard is ok but a bigger one has to be better for flow etc. I think there a quite a few here that run sports cat.

Mine is 3 inch all the way,but the limiting factor is the standard turbo flange at the beginning imo. Although the turbo is a hybrid and puts out 300+ hp.



Re: downpipes etc [Re: jonnyboy54321] #1608258
22/09/2017 06:34
22/09/2017 06:34
Joined: Aug 2017
Posts: 338
Camberley, Surrey
J
jonnyboy54321 Offline OP
Making a profit
jonnyboy54321  Offline OP
Making a profit
J

Joined: Aug 2017
Posts: 338
Camberley, Surrey
Not particularly looking to go mad on the engine - just while it's out figured bolt-on mods may be worth it - but only if they're worth it!


Always seem to have too many 20VT's to count......
Re: downpipes etc [Re: jonnyboy54321] #1608272
22/09/2017 14:20
22/09/2017 14:20
Joined: Dec 2005
Posts: 17,386
Staffordshire
Nigel Offline
Forum veteran
Nigel  Offline
Forum veteran

Joined: Dec 2005
Posts: 17,386
Staffordshire
If you are looking to go much above 250-275 bhp, the standard downpipe will become a restriction.

Just so happens that I have an aftermarket downpipe available..... wink

Re: downpipes etc [Re: jonnyboy54321] #1608352
23/09/2017 19:13
23/09/2017 19:13
Joined: Aug 2017
Posts: 338
Camberley, Surrey
J
jonnyboy54321 Offline OP
Making a profit
jonnyboy54321  Offline OP
Making a profit
J

Joined: Aug 2017
Posts: 338
Camberley, Surrey
Yes i saw that Nigel
I have a stainless fella who just did a blinding job on Mrs JB's c70 exhaust - considered having him make me one


Always seem to have too many 20VT's to count......
Re: downpipes etc [Re: jonnyboy54321] #1608357
23/09/2017 20:04
23/09/2017 20:04
Joined: Oct 2008
Posts: 6,799
In the coupe.
magooagain Offline
Club member 259
magooagain  Offline
Club member 259
Forum is my life

Joined: Oct 2008
Posts: 6,799
In the coupe.
Jonnyboy you have a message,there should be a flashing icon by your
" my stuff" choice at the top of the page.




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