Broom broom

[Valver.]

noice noice!!! im curious as to what brake booster and mc are u running there, got any specs on it?

i really cant wait to see this at the nats!!

It's a 24mm m/c off a VW Multivan and then just a Cupra booster with some white paint slopped on top

[Water Boy]

That is some serious motor there...

BTW Stu have u had it on the dyno yet?

[Valver.]

Not yet - still ironing out niggling problems... I probably won't take it out there until it can be driven properly, which is still a few weeks off now The map in the car now looks quite good, but I also need a secondary one for lower boost as the car will need reigning back quite a lot to be even mildly driveable on the street

[Water Boy]

Isnt it best to tune the car on the dyno

[Preen59]

Running happily - plenty of things to address/tidy-up/clean etc, though!

Err, Tidy up? Looks pretty damn clean to me! .

What's the Alternator off? I'm in need of one the same. If you could tell me that'd be fan-bloody-tastic.

Nice work. People keep saying my engine is going to be insane, but it'll just be fast. Yours is INSANE!

Hope to see it run some day.

[peedman]

Isnt it best to tune the car on the dyno

Quit rushing the poor fella , dyno tuning costs time and money so theres no point getting it tuned now if something is gonna change down the line.

Shotgun first spin at the nats!!!!!!!!!

[Water Boy]

Quit rushing the poor fella , dyno tuning costs time and money so theres no point getting it tuned now if something is gonna change down the line.

Shotgun first spin at the nats!!!!!!!!!

If he works at a performance workshop wouldnt they have a dyno

[Valver.]

Isnt it best to tune the car on the dyno

Well no, actually! You should never use a dyno as the only method of tuning, as you can't replicate the driveability you need in a street car as it's too much of a regulated environment (plus the car runs a lot hotter, no matter how big the fan is)

Dynos make life easier for getting a very solid base map with all the figures right in front of you, but it's still not quite the same as taking out a laptop for half and hour with an O2 probe in the exhaust.

Still an important part of the process, but not the be-all-and-end-all like most people seem to think

[JP-009]

It's a 24mm m/c off a VW Multivan and then just a Cupra booster with some white paint slopped on top

Hi Stu, I'm no engineer, but I have yet to see any 'slop' in your work.

Not yet finished, but already an amazing car

[Valver.]

Err, Tidy up? Looks pretty damn clean to me! .

What's the Alternator off? I'm in need of one the same. If you could tell me that'd be fan-bloody-tastic.

Nice work. People keep saying my engine is going to be insane, but it'll just be fast. Yours is INSANE!

Hope to see it run some day.

Thanks for the comments all - it's nice to get positive feedback

The alternator is a stock 90amp one from a Mk3. You can get the non-A/C version, which is spring loaded underneath, or the roller-sprung unit as I have (meaning you need to change to a VR6 water pump pulley and use a 6PK1040 belt).

You could use a VR6 alternator (120amp IIRC?), but perhaps a bit excessive for a Mk1

P.S. Re first spin at the nats: is it even possible to drive 'quickly' on the mainland without getting bitchslapped by the police?! Our rules are getting full on down here, but there's still plenty of room for early morning runs

[static1800]

The alternator is a stock 90amp one from a Mk3. You can get the non-A/C version, which is spring loaded underneath, or the roller-sprung unit as I have (meaning you need to change to a VR6 water pump pulley and use a 6PK1040 belt).

Is that a kit? or do you just run a normal non a/c alternator? like off a cl or something? need to sort that out for my project

Looking good Stu.

[Valver.]

The non-ac ones are spring loaded underneath - they did come on some GL 2.0s but rare as hen's teeth. More chance on a CL, as you say.

They definitely make the conversion easier. When you use a roller tensioned (previously ac) setup in a Mk1, the pulley bolt is very close to the chassis rail, so you really need to 'modify' it - with a hammer... - to get some clearance.

Both serpentine setups require the Mk3 style alternator mount - you can't just bolt on the new alternator in place of the old v-belt dinosaur.

Very worthwhile conversion, though - you can change a belt literally under a minute; it's WAY quieter and smoother aswell

You can buy a kit from INA in the US - good price, but due to the weight, their charge freight is huge Try asking around on here - someone will have one.

[ValveBounce]

I only just went through this thread, dunno how I missed it before.
Awesome car Valver! Did ya start and stop the stop-watch to see how long its taken you? How many 100's of hours has it taken you? haha

[Jarred]

excellent work stu! this is turning out to be a real clean monster! cant wait to see it in the fibre

[Preen59]

Very worthwhile conversion, though - you can change a belt literally under a minute; it's WAY quieter and smoother aswell

Haha, i don't think you'll be able to hear the alternator belt on my engine..

Thanks for the help dude, i'll start sourcing parts now. I'm glad its a VW one, i mainly just want a small alternator because i don't need a ridiculous amount of amps and i wanted it to be nice and compact to fit under the carbies, so i was going to go looking for a Daihatsu alternator or something and make my own brackets, but this is much easier.