When I finally get the beast and it's turbo working I'd like to fit a dump valve, decat pipe and chip.
What are your recommendations?
wrinx
Minor upgrades?
When I finally get the beast and it's turbo working I'd like to fit a dump valve, decat pipe and chip.
What are your recommendations?
wrinx
Re: Minor upgrades?
Forge FMDV004 - Dual Piston Ram Dump ValveOriginally Posted by wrinx
Think you need to fabricate your own.decat pipe
I would say Squadra, but I read on a other forum you don't want to use RON98 petrol. It will run on RON95, but is not recomended.chip
Greetings,
Marc
Yes, I'd rather run on 95 as 98 was hard to find round here, and very expensive...are Superchips still going???
wrinx
The normal Sqaudra chip can still be orded, the combi-prom like mine isn't available anymore.
Greetings,
Marc
i have a bailey piston dump valve,
de-cat is indeed home made, as mentioned.
and mine has the evo-eng chip which may be still available as Jack has mentioned the garage is up and running again now.
Vice President
Site Admin
He isnt really in to chips right now at the new Evo's - but I guess it wouldnt hurt to ask if his 'grale man wants to start the trade in those up again
1993 Alfa Romeo 155 Q4 , 2.0 Turbo
Forge dump valve, custom made catless exhaust and Squadra chip have transformed my car. It is now everything it should be.
It will run 95 RON feul with no major problem but I tend to run it on 98 which I found smoother even befroe the mods.
Just do what suits you and enjoy
Thanks guys, the two votes for the forge DV
Turns out I'm already Squadra'd so that saves a few pennies
The car has a single downpipe, which is good, and a little cat...it's half the size of "normal" cats (racing cat?) but I'll have that out once I've confirmed the MOT story
wrinx
Quick question...single or double piston dump valve?
wrinx
President
Site Admin
The MOT thing is written in DVLA doctrine so you'll be fine, and the small cat in the downpipe is a pre-cat. Its in addition to the two cats under the car. So yes the Q4 has 3 cats + 3 silencer boxes, so not a restrictive system at all.
The car seemsot have a single downpipe, which is good, and a little cat...it's half the size of "normal" cats (racing cat?) but I'll have that out once I've confirmed the MOT story
wrinx
An Integrale Evo2 downpipe can be modified to fit the route under the engine and comes minus the pre-cat.
Steve
1994 Alfa Romeo 155 Q4: Dozeing in the garage.
2009 Audi A4 tdi: Everyday drive.1994 Alfa Romeo 155 , 1995cc Std Standard Black
Right, interesting...3!!! :shock: :shock: :shock:
I'll have that out as well then
wrinx
"Unlike single piston or diaphragm diverter valves, this uses counter balanced springs and dual pistons to prevent the valve from leaking air into the intake system at idle. This prevents our diverter valves suffering any of the failures associated with single piston and diaphragm type diverter valves."
I guess this says it all
Greetings,
Marc
...it certainly does
wrinx
Forge recommend the Dual Piston valves for "turbo cars with air flow meters" hence my car has an FMDVF003 fitted.
I noticed that...got me all confused again now
wrinx
Q4 = Confusion
Forge do not have Dual Piston valves listed for the Lancia Delta!
The FMDVF003 does the stuff on my car, it sounds good and it has no problem with leaking boost. The turbo does seem to spin up better since the valve was installed. It is easy to fit, remember you need the blanking plug to blank off the recircultion pipe.
Both blow of valves are okay to use. Mine was recommended by Stephan from Sqaudra-Tuning. Otherwise I might have bought an other version from Forge.I noticed that...got me all confused again now
Greetings,
Marc
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