Recent content by Harvey

  1. H

    water/methanol injection

    Sorry but this is not the case. The purpose of an intercooler is to lower air charge temperature and on a turbo charged petrol engine 10 deg.C. equates to approximately 3% power so if you are running at 30 degC. ACT and can reduce that to 20 deg.C on a 400 bhp engine at 30 deg.C. you will have...
  2. H

    Air/Fuel Meter

    Great piece of kit. I use both an LM2 and LM1 so the older LM1 is now for sale. You can buy new from Innovate in the U.S. or seek out stokists who will give you a discount.
  3. H

    water/methanol injection

    I have experience of water methanol injection on both turbocharged diesle and petrol engines. Injected it is used 50:50 water to methanol. A high pressure pump injects the fluid through a nozzle into the air flow from the intercooler to the inlet manifold. On a 2 litre Subaru flat four I produce...
  4. H

    Tuning bits. Vectra C 1.9 CDTi SRi 150

    Yes. There are some big power diesles about. The VAG guys have been at it for some time so the modification route is fairly well marked out and off the shelf parts are relatively easy to obtain. The 1.9 Fiat engine as fitted to Vectras, Astras,Saabs, Cromas, Alpha Romeos is not as well developed...
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    Tuning bits. Vectra C 1.9 CDTi SRi 150

    Cheers mate. If there is anything you want to know about specifically I can share my experience with you but some times I don't get on here for a few days.
  6. H

    Tuning bits. Vectra C 1.9 CDTi SRi 150

    Thanks for the information. In every day trim the car is running the 279 bhp/437lbs ft map with water methanol. I did nothing with the injectors until around the 250 bhp bracket but remember I also had water methanol injection assisting power development. (10-18 bhp subject to how it was...
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    Tuning bits. Vectra C 1.9 CDTi SRi 150

    Interesting that Cummins are doing this too. I suspect a lot of diesel manufacturers will go down this route in the future but obviously they need experience in the field for such a radical change. Why do you think the O/E pistons are OK beyond 280 bhp and greater boost than I am running...
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    Tuning bits. Vectra C 1.9 CDTi SRi 150

    I have already been offered custom rods and pistons but the cost is prohibitively expensive. I also note that the latest development pistons for BMW, Mercedes and others are actually steel items not weighing any more than the aluminium counterparts because they are thinner. If you were to go...
  9. H

    Tuning bits. Vectra C 1.9 CDTi SRi 150

    Thanks for that T9. Your views are different to those of the local Saab dealers or at least a couple of their mechanics. My only experience on a Saab Twin Turbo was that there was a bit of a step in pull when the second turbo came in higher up the rev range. This has also been my experience...
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    Tuning bits. Vectra C 1.9 CDTi SRi 150

    With latest turbo after mapping. In February this year at a rolling road day the car did 268 bhp/437 lbs.ft. On the first visit to RS Tuning February 2011 the car did 216 bhp. All mapping over the last 14 months at RS Tuning, Leeds.
  11. H

    Tuning bits. Vectra C 1.9 CDTi SRi 150

    For me that is too much work and complication for not very great gains. The space available is a major consideration and why run 2 turbos when one will do? The reason for running 2 small turbos is no lag and immediate spool but we are only dealing with a four cylinder engine so I don't think...
  12. H

    Tuning bits. Vectra C 1.9 CDTi SRi 150

    So far all I have done with the 1.9 CDTi manifold and exhaust housing is port it and I think I have gone as far as I possibly can using the original 17/49 turbo as a base. I have just fitted another incarnation of the same turbo which will be mapping soon and the results, good or bad, will be...
  13. H

    Tuning bits. Vectra C 1.9 CDTi SRi 150

    I think there is a bit more to come. I will know mid June. The turbo fitted last Wednesday spools even quicker but I have no idea as to ultimate power until it is mapped so there is a delay. My experience and within the mods I have done and relying only on RS Tuning rollers to keep...
  14. H

    Progress on 150 CDTi Engine.

    http://www.torquecars.com/forums/f134/tuning-bits-vectra-c-1-9-cdti-sri-150-a-16350/
  15. H

    engine re maps

    Speak to Pat Herborn at ScoobyClinic or the owner Kevin Knight. They can Ecutek remap your M/Y 2000 ECU. This pre-supposes that it is an M/Y 99-00. If it is prior to that date you will need an aftermarket ECU or board which can be specifically mapped to your car. They usually do this on their...

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