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  1. TAZ67

    2.0L supercharged opel corsa B

    I've helped a friend who supercharged a X1.6XE 16v using a Rotrex Supercharger. Air was cooled by a water cooled small finned plenum. Also injected Meth/water mix when the temperature got high. All forged internals and ported head fitted with 1mm oversize valves. That was dynoed at 342bhp with...
  2. TAZ67

    My rover 45 project

    Very underrated cars the Rovers! Most people slag them off. I had a 216 Gti the older shape. Half leather seats and wood trim looked lovely inside. I was amazed how fast it was for a 1600. Handled well also. I never had any problems the time i had it. I put on over 50,000miles on it making it...
  3. TAZ67

    Cornering, going fast or accelerating

    Rally driving is one of the most dangerous motorsports. Safety is paramount importance knowing one day your going to crash! The safety of a well engineered roll cage can only help in certain situations. I've lost a friend that had went into some tree's at about 40mph missing them all. But a...
  4. TAZ67

    Ever been stopped by the police

    Speed trap over 15 years ago. Passing a lorry on a 60 road and was clocked at 80mph as I was passing!! Tried everything to get off with it. B- - - - - - - !?
  5. TAZ67

    Longest and shortest times for owning a car

    Purchased a cheap Jaguar XJ6 sovereign with wings rusted out but everything else spot on for £150 in 1987. The next day I got a quote for replacement wings and was flabbergasted by the price. £325 each!! The same day I sold it regrettably to one of my mate's for £300! So only had it less than 2...
  6. TAZ67

    Build it or buy it

    I've modified most car's I thought of keeping but change the things that were not good. I had a mk2 2dr vauxhall astra estate over 8 years and upgraded the brakes and suspension aswell as engine. Ended up being a great handling fast sleeper I had great fun with. I would still have that sleeper...
  7. TAZ67

    Cornering, going fast or accelerating

    When I rally my 285bhp 0-60 in 4 seconds on tarmac mk2 Escort the rear oversteer that is controlled going round corners is what makes me grin! Especially if high speeds are involved! So really have 2 with this, first one getting pushed into the seat all the way to it's top speed of only just...
  8. TAZ67

    How mechanically skilled are you

    Most people have Learned from others if a interest of how things work is in their curiosity. From a young age on my dad's farm I was asking what,why,how and annoying the *#*#*#*# out of him about farm machinery and it's workings. Had 2 older crazy brothers that car's and bike's were always being...
  9. TAZ67

    vauxhaul tigra

    I think that is a XER engine in that model? Start with making it breath better by fitting a sport's air filter like the K&N panel filter! The restrictive exhaust manifold can be replaced with a sport's 200cell cat manifold or even better a 4/2/1 with no cat then into middle box then straight...
  10. TAZ67

    Are carbs the same as throttle bodies

    A carburator is like a valve in a way. It draws in air to feed engine a fuel and air mixture controlled by a plate that is the same diameter as carb. The plate when closed decreases the amount of air entering engine. Fuel is introduced through small orifices, air pulls out metered amounts...
  11. TAZ67

    Best head gaskets

    I've had Cometic head gasket fitted in many tuned engines and no problems so far. Highly recommended!
  12. TAZ67

    Principles of porting an engine and big valve conversions

    Matching manifold to ports definitely helps increase power. Having pins fitted is needed so alignment always matches. Turbulence of incoming air/fuel is beneficial. Port shape also play's a big part. Combustion chamber can also determine how well mixture behaves entering, then how well flame...
  13. TAZ67

    Polishing the ports?

    I polish to a mirror finish only combustion chamber's and exhaust ports. Inlets are hand finished with 100grit emery to help with aerodynamic efficiency of air/fuel mixing better and minimize fuel drop out. Manifolds matched and pinned so minimising alignment points of port to manifolds. But...
  14. TAZ67

    High performance valve springs

    Valve Springs can also lose power if you use a spring combination that is over specced for your engine. Cam can prematurely wearing out aswell as turning forces having more forces to deal with so power lose is commonly the result. Pointless fitting stronger springs that are capable revving to...
  15. TAZ67

    How to lower the engines compression ratio

    The best way is to get proper low compression pistons and having a low squish/quench area by keeping the piston to head clearance no more than 1mm, helps to reduce detonation. Also making sure that any sharp edges are reduced in head and pistons.
  16. TAZ67

    Hi everyone and thanks for letting me join! I'm nuts about motors aswell as motorsports!!

    I have been into anything mechanical from a young age. My Father owned a farm so was always curious about farm equipment and how it worked. I was always asking questions as to the workings of all the equipment on the farm. When machinery my father worked on repairing or setting up I often...

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