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antera309

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Posts posted by antera309

  2. Positioning Of MFA On A Z-Engineering Charger

    in Engine Tuning

    Posted

    The vortech charger has its own oil feed and more complex internal gearing than the ZR1 - this makes the Votech more reliable than the ZR1, but also makes it sap more power from the engine.

    A ZR1 will require periodic checkups & maintenance. The Vortech is "fit and forget". But a ZR1 will make more power than a Vortech at the same PSi.

    I'll leave you to decide which is "better" !

    The MAF can be fitted either between the air filter and the charger (upstream of the charger) or between the charger and the throttle (downstream of the charger) as long as the ECU is running an appropriate map. If you switch from upstream to downstream (or vice versa), you need to have your ECU remapped.

    Most tuners recommend that the MAF be fitted upstream of the charger because in a downstream install, hot air blowing out of the charger distorts the MAF reading, causing fuelling problems. Blasting the MAF with hot air can also cause premature MAF failure.

    So, unless your tuner has specifically told you to install the MAF downstream (and given you a good reason why), I would fit it upstream.

  5. Had an idea but need your opinions

    in General Chat

    Posted

    Converting a mk3 from something else to a VR6 is only really worthwhile if:

    - You've spent a fortune on non-removable body mods & a respray

    - Your mk3 is an Estate or Cabrio, which were never available with the VR6 engine from the factory

    - You get given the VR engine, gearbox, subframe etc. for nothing.

    Otherwise, selling your car and buying a VR6 will be the cheapest and easiest option.

  9. [poll] Louvres

    in Bodywork and Styling

    Posted

    I don't think it's a jap thing. I've seen some really nice Euro-styled mk3s with the Mercedes sprinter type vents.

    If you're running a supercharger, fitting a wing vent makes a lot of sense - the cool air blowing onto the charger will prevent overheating and prolong its life.

  10. Common Oil Leaks

    in Engine Maintenance and Problems

    Posted

    Well have just done an oil change and on refilling it is coming from the oil cooler as i cleaned it all up and ran the engine and you can watch it come from the bottom section above what i am imagining is the oil level switch which is beside this. Do you just have to undo the 24mm socket at the end of the oil cooler for it to come off??

    Yes, it's just one 24mm bolt that holds the cooler to the engine. There are 2 rubber seals - one inside the cap that forms part of the retaining bolt, and another between the oil cooler and the engine.

  19. Cold air intake hose location

    in Engine Tuning

    Posted

    Your arrangement will prevent the intake of hot air from inside the engine bay, which is good. However, it will not give you the "ram" effect at speed like fitting to the bumper intake will. I can understand your concerns about water ingress, but I ran a BMC CDA with a cold air feed hose going to the bumper for 2 years on my last VR and never had any problems in bad weather.

  20. S/C OR SHCRICK!!??

    in Engine Tuning

    Posted

    I have experience of both.

    A Schrick manifold will improve mid-range punch but doesnt give you much more at high revs.

    A supercharger running 8psi improves things below 4000RPM at least as well as the Schrick does (slightly more IMO) and has the added advantage of MUCH more kick at the top end.

    Supercharging is more expensive than a Schrick manifold & cams, but you do get a lot more for your money.

  23. You've GOT to read this....

    in General Chat

    Posted

    I liked:

    The VR is based on a diesel so the bottom end is pretty strong. I heard it's fairly easy to get a 24v head on too!

    WTF?!?

    There are some pretty sheddy VRs out there, to be fair, but given the choice between a 150,000 mile 1994 VR6 and a mk3 Astra GSi, mk5 Escort 16V or Renault 19 16V of the same age and mileage, I know which one I'd trust most on a long journey...

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