As you say, most people go for the bigger one to begin with to save having to change it later on if/when they go HB.

If you only intend to go LB, then I would go with the smaller IC as it seems to help with the stalling issue from what I've read. As there is a smaller volume of air for the ICV to deal with compared to the bigger IC, it's able to cope slightly better.

If it's being custom mapped, then there shouldn't be anything to worry about.

As long as the person doing the mapping is any good, they should be able to eliminate any stalling issues and achieve an adequate power output.

What cooler is the low blow using??

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Was your friend's ECU custom mapped though Simon?

Wayne did manage to get round the issue in the end and it has worked for the majority of cars.

Basically what he did was to send pulses to the injectors when they dropped down to 1100rpm. That way, if you was coming down the revs from 3000rpm for example, and suddenly put the clutch in, the revs would try and drop to about 600rpm and stall, but because fuel was injected at 1100rpm, it would save the stall and keep the idle around 850rpm.

Luckily, I don't suffer from this issue myself as I don't use an ICV on my setup and I have an aftermarket ECU controlling everything anyway.

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone

No it just runs the standard map that the low boost cars run - it's the setup which has been installed now in my Rallye as the other car was stripped.

I'm familiar with the modifications to the early maps to cure the stalling, mine will probably be running the updated variant. The issue on any car, early or late map will still be exacerbated by the lightening of the fly.

I used to get this on my Rover, where 1 of of maybe 50 clutch in stops, the engine would fail to catch the revs and result in a stall. This only occurred after I installed a lightweight flywheel, a TTV Racing one just like Rich's, only in this case it was in the region of 1/3 of the weight of the original (3.5 vs 9) whereas I understand the GTI one is circa 6-7 to start with. Revving of the engine was massively different to standard.

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I'm Si btw

Night Blue VW Golf GTD
Bianca LBSC Rallye - Track/Road Slag Project Thread
Sparkling Silver Mini Cooper D - Super Dooper - (The other half's wheels)

Ok so riddle me this then
Two options
Low boost intercooler + map + lightened fly
High boost intercooler + map + lightened fly
Is one better than the other? both are mapped...

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Ex- Phase 3 China GTi-6 T-Reg

intercooler only :p

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Ex- Phase 3 China GTi-6 T-Reg

Thats my question.
As most low boost setups seem to have a high boost cooler, is there an advantage OTHER than easier (hardly) upgrade to high boost.
I.E in a purely low boost car does the high boost sized intercooler give any advantage.

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Ex- Phase 3 China GTi-6 T-Reg

Thats what i thought :/ i know thats how it works in turbo land too, in the sense that the larger the intercooler the more lag you have etc.
My main worry is whether theres an effect to the power figure.

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Ex- Phase 3 China GTi-6 T-Reg

Exactly this.

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"Supercharged - 454.1bhp/317.5lb/ft"
Peugeot 306 GTi-6
2000 (X), Moonstone