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140/164 Series General Forum for the Volvo 140 and 164 cars |
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142 Track day car! :)Views : 2633 Replies : 13Users Viewing This Thread : |
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Dec 3rd, 2008, 12:52 | #11 |
Member
Last Online: May 21st, 2023 08:35
Join Date: Aug 2008
Location: Cape Town
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DGV Carb setup
Hi Guys
Thanks for all the input so far. will definately be picking a few brains when we start at the beginning of next year! What is the general consensus about the Weber DGV carb conversion(Pictured below)? I've heard that a decently modified set of SU's can be just as good as the DCOE conversion and that the DGV conversion is a bit of a waste of time. Can anyone confirm this or have some input? Dylan Last edited by Dylan144GT; Dec 3rd, 2008 at 12:56. |
Dec 3rd, 2008, 13:02 | #12 |
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Last Online: Aug 26th, 2020 14:12
Join Date: Apr 2006
Location: Lymm
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I've always though that single webers were a bit pointless, as you say twin SUs do the business, I'm on them, and I think Snowman is too. If you've already got a set then get them rebuilt, if you don't then they'll probably be cheaper.
Single Webers supposed to give more torque due to air/fuel velocity being higher at lower revs vs. twin webers which give more top end power. I've had a lot of Alfas on twin Webers/Dellortos and they've been ace, although it was a factory fit so designed that way. I know other people that view fitting twins as a good way to make a noisey thirsty car that isn't faster. I think any carb alteration needs to be treated as a whole with exhaust and camshaft changes to maximise everything. My engine didn't rev beyond 4,000 very well till I stuck on a simonz exhaust, now it slows around 5,500. First time I'd ever seen anything as a real noticable improvement. Still got the 4 branch manifold to fit. So, it's how much money do you have to burn? Think about s/h parts but be aware that a lot of old carbs are worn out and shagged, which is why they're for sale. |
Dec 3rd, 2008, 14:29 | #13 |
never knowingly slow
Last Online: Aug 8th, 2012 09:31
Join Date: Nov 2006
Location: near Bath
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Tend to agree with Sam on this, taking the air/fuel mixture through 90 degrees seems like doing it the hard way when the SU option is a clean side draught.
On SU's, mine will run well over 6000rpm having had the various mods needed and I seriously doubt going the Weber route would have that much effect other than right at the top of that range. You can get them to look good too! Last edited by Snowman; Dec 3rd, 2008 at 14:33. |
Dec 13th, 2008, 15:29 | #14 |
New Member
Last Online: Sep 22nd, 2009 12:26
Join Date: Jul 2007
Location: Goor
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Here in Holland we have an engineer, who has developed all the goodies for suspension etc. for classic Volvo's. It's a partime business, but the man knows his fast Volvo's!!
He also has developed some camshafts: the socalled TT8 is for fast rally/race use. You need double valvesprings too. http://www.tinustechniek.nl Look under "Motor intern" for the camshafts. It is all in dutch I'm affraid. Maybe it is a good idea to send him an email for he can tell you what to do best? Good luck with your project! |
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