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Subject: Enging Tuner || New Question
Sender's Name: dane
Question: hi alan i have a 1997 subaru turbo 2000 i used to work at scorpion exhausts and prodrive came one day and said my dump valve will do more harm than good. something to do with the air flow meter is this true?
Answer: To a certain extent, yes. If you have some types of vent to atmosphere dump valve, you can introduce pulses into the intake system. The car uses a mass air flow sensor which measures incoming air volume. If you cause any kind of leak between the throttle body and the MAF sensor, the resulting interruption of air flow can cause load measurement variations and poor running as a result. Subaru took the trouble to develop a perfectly good recirculating dump valve system, and I can't see any good reason to change it frankly.
 
Subject: Enging Tuner || New Question
Sender's Name: Steve
Question: Hi Alan I need your help once again! I\'ve just bought myself another type ra. This time I\'ve gone for an sti v2 v limited which is totally standard. Trouble is when under hard acceleration it\' seems to be flat then it coughs then pulls like you\'d expect it. It only does it when going up through the gears if you accelerate in say 4th or 5th it\'s pulls fine?? I know a rolling road session will be on the cards but is there anything obvious I can check myself?don\'t think it\'s had plugs recently so I will do those and check the coil packs for cracks at the same time.Once again thankyou for your help steve
Answer: Hi Steve - You've answered your own question! That's the first place I'd go. Failing that, book it in for a dyno session and check over. In fact, do that anyway!
 
Subject: Enging Tuner || New Question
Sender's Name: rob
Question: i have just brought a impreza wrx on 52 plate, but i dont know what bhp they run at,(uk model)if i get the engine remapped, what would it cost and get out of it
Answer: Hi Rob - A remap using Ecutek software would cost 500 inc vat, including the licence. this would cover tuning work and dyno graphs. A decat downpipe would free up a little more power, and these are commonly done together. The downpipe fitted costs 276 inc vat. I'd expect to see 210 bhp from the standard car, and up to 260 bhp after tuning.
 
Subject: Enging Tuner || New Question
Sender's Name: anthony
Question: hi again alan, the audi i have is the 1989 2ltr 8v. i\'ve been told that u have worked on it before, back in january this year.
Answer: They normally put out around 115 bhp on our dyno. It's possible to tune these, although you'd need to spend around 1300 or so for the necessary head work and camshaft change needed to make much difference.
 
Subject: Enging Tuner || New Question
Sender's Name: Jimbo
Question: As you may recall, back in \'86 or thereabouts Robin Rew had a handful of Reliant Scimitar SS1s fitted with a Turbo Technics turbo (as far as I know, only onto the Ford 1.6 CVH engined version, as the Nissan-engined 1.8 turbo was just around the corner and rendered the conversion superflous). Having found one of these rare gems, with the turbo seemingly in surprisingly good condition, is it worth having a specialist give it a good looking at and/or what should I pay special attention to on this 25 year old unit to extend its life a bit further?
Answer: Hi Jimbo - I wouldn't see any particular problem with running that car. The turbo is most likely a T3, and easily dealt with. We could overhaul it for 200 plus vat, or supply a new one from around 350 plus vat. We would be happy to help you maintain the car, be it hands on or just free advice.
 
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