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Subject: Enging Tuner || New Question
Sender's Name: Mark Chandler
Question: I own a 205 Turbo Technics, I have just fitted a Digtial AFR Guage. I would like to know what the ideal AFR would be on high boost 0.65bar (9.75psi)? Thanks for your time.
Answer: Hi- Around 12 to 1 would give best power, 11 to 1 for safety if you're uncertain about comp. ratio or ignition settings.
 
Subject: Enging Tuner || New Question
Sender's Name: Mark
Question: Hi Alan, I have a 1.8 pinto in my kit car. I have bought a 38 DGAS weber and manifold from a RS2000 to put on. The manifold has been ported. Should I get my cylinder head ported also ? Are there any other mods that you could suggest for performance improvements ? you set the car up for me back in may and it's been perfect ever since, just want more bhp !! Thanks Mark (Bob's son from Staverton)
Answer: Hi Mark - Glad to hear the car's going well! The dgas will be fine, although it will need re-jetting. No harm in lightly porting the head, you could probably raise the compression a little as well.
 
Subject: Enging Tuner || New Question
Sender's Name: marie
Question: hi alan im wondering can u help me i have a diesel car rover 115sld n reg and it wont start were putting it down to the bubbles how do we get rid of the bubbles and do u think this is the problem so far its cost us big style(?700)and its also had new glow plugs new battery and money spent on mechanics for it not to work is dissapointing please help me thanks mrs m moore
Answer: Hi Marie- Regret we don't do much with diesels, so I can't be specific. They function through fuel being injected under high pressure, and speed is controlled by fuel quantity and not air flow as in a petrol engine. Bubbles in a pressurised line would indicate a lack of pressure. Bubbles in a feed line could indicate a leak somewhere, ie air getting in. If you've paid someone to sort this already, you really should be going right back there, and ask them politely to sort the damn thing out. It doesn't sound like rocket science to me!
 
Subject: Enging Tuner || New Question
Sender's Name: Roy
Question: How can I increase my Toyota's Bhp??? The last modification i made was the carbon fiber body kit from USA.
Answer: Hi.. Try Fensport, who do more with Toyota than anyone else.
 
Subject: Enging Tuner || New Question
Sender's Name: robert
Question: hi alan my mk2 fiesta turbo technics is mis fireing and i have changed every thing ie plugs/leads/dizzy/dizzy cap/coil could you please help me with what the problem may be cheers ps compression is fine and the head gasket is ok
Answer: Hi.. Chances are it's a fuelling problem. The carb has to be fed with fuel at the correct pressure relative to boost, which is why it has a high pressure pump and boost regulated pressure control. The system works the same as a Renault 5 GT turbo if that helps! Apart from that, you may well need help with that one. I'd say most rolling road tuners could deal with it.
 
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