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Denso Alternator


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#21 vocky

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Posted 01 September 2011 - 12:55 PM

cheeky fecker :P I spotted a silver vxT for sale at Buckingham on my travels today, the last vx I spotted whilst driving mine was a mandarin whose driver never even recognised me :lol:

#22 The Batman

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Posted 01 September 2011 - 01:13 PM

:lol: i thought my mind was playing tricks on me as I knew it couldnt have been you :lol: you are just 'claiming' it is!! No witness's :lol:

#23 Seb.F

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Posted 01 September 2011 - 01:44 PM

I think the 55A will be better, personally, don't compromise 15A just for the sake of a few kg, just in case you ever need it. Eat less and drive with no clothes on.

#24 starlight

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Posted 01 September 2011 - 01:57 PM

Also worth adding is for a given load, what are the losses of the alternator? i.e. Does the 45A running at 40A take more or less torque than the 55A one at the same load? Is this parasitic loss greater than the effect of the greater mass? :)

#25 vocky

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Posted 24 September 2011 - 09:11 PM

well I bought a 60Amp in the end :P

Plus I finally got chance to use the USA L61 alloy alternator pulley which I bought many years ago, it was too short for the z22se alternator but perfect for the Denso :D

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#26 JG

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Posted 24 September 2011 - 09:15 PM

thats tiny!

#27 vocky

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Posted 24 September 2011 - 09:18 PM

just over 3Kg and so small it's easily held in one hand :o I'm going to mount it to the engine as low as possible too :D

#28 vocky

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Posted 22 October 2011 - 12:15 PM

Alternator mounting bracket has been machined which allowed the Denso alternator to be mounted onto my spare engine, bought a 5PK750 drivebelt and just need to make the adjuster. Then it will be time to fit it to my vx :D

#29 vocky

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Posted 22 October 2011 - 02:56 PM

adjuster made and the final mock up before painting etc

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#30 Steffe

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Posted 23 October 2011 - 08:43 PM

How much weight did you save? How much did it cost? Where did you buy it? Is it only for weight reduction or are there other benefits?

#31 vocky

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Posted 23 October 2011 - 09:07 PM

How much weight did you save? - new alternator weighs just 3Kg
How much did it cost? - all brand new parts = £130
Where did you buy it? - all from ebay

Is it only for weight reduction or are there other benefits? - Weight reduction was the main reason [lighter alternator, belt tensioner removed, shorter belt]. Plus I wanted the alternator mounted lower on the engine and of course the fun of fitting it :D

I also saved more weight because I had to make a new trigger wheel bracket, due to the new belt position, which I made from alloy plate. I know it doesn't sound like much but when you compared the two brackets there was a huge difference in weight :blink:

Edited by vocky, 23 October 2011 - 09:07 PM.


#32 Steffe

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Posted 24 October 2011 - 10:28 AM

OK, but what was the old alternators weight? :)

#33 alanoo

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Posted 24 October 2011 - 01:56 PM

Sell me one of those (brackets) Imnotworthy

Edited by alanoo, 24 October 2011 - 02:00 PM.


#34 vocky

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Posted 24 October 2011 - 02:08 PM

standard alternator weighs 6Kg

I weighed everything removed = 9Kg * and everything going back on = 4Kg **, total weight saving = 5 Kg Imnotworthy

*That includes the z22se alternator, tensioner, belt, bolts and standard crank pulley
**That includes the Denso alternator, bracket, belt, bolts and underdrive crank pulley

Just finished fitting it, just the wiring to do, also had to make a new dipstick bracket :rolleyes:

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Edited by vocky, 24 October 2011 - 02:12 PM.


#35 rabidh

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Posted 24 October 2011 - 02:13 PM

Looks great! By the way, you forgot to bolt up the battery terminal ;) Did the ITB cable attachment come with the ITBs? Looks completely different to the thing I have... It comes off at a much better angle.

#36 vocky

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Posted 24 October 2011 - 02:17 PM

By the way, you forgot to bolt up the battery terminal ;)

Did the ITB cable attachment come with the ITBs? Looks completely different to the thing I have... It comes off at a much better angle.

I knew someone would pick that up :lol:

I've ordered the denso plug for the wiring loom, so it's not finished yet :closedeyes:

I have an early set of Webcon Throttle bodies so it has the stronger motorsport linkage thumbsup

ps: I'm surprised nobody has asked how I took a picture of my engine from the drivers seat :P

#37 techieboy

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Posted 24 October 2011 - 02:24 PM

ps: I'm surprised nobody has asked how I took a picture of my engine from the drivers seat :P

I figured it out. :lol:

#38 rabidh

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Posted 24 October 2011 - 02:33 PM

ps: I'm surprised nobody has asked how I took a picture of my engine from the drivers seat :P


Have you just removed the whole front end of the car to save weight? It's not like you use it much anyway :)

#39 vocky

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Posted 24 October 2011 - 02:39 PM

I hadn't thought of that :lol: I have a removable alloy bulkhead these days, makes access so much easier :D

#40 vocky

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Posted 24 October 2011 - 02:42 PM

And before anyone notices .... the drivebelt was a 6PK750 from a VW Polo 1.3 which I trimmed down to create a 5PK750 :P




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