Big Turbo time!!

[Teutonic_Tamer]

A quick comparison shows that the ED30 volume is quite sparse compared with even the S3 cooler let alone the THS one.



Although the ED30 outlet appears better than the S3 version it is restricted after the connector down to under 40mm. The THS is straight in to the cooler at 57mm.

Do I see an error in your calculations?  Whilst you have included the relevent 'OEM' sited coolers, what about the Forge unit?  Because, some peeps (me included) have the S3 cooler in the OEM site, along with the Forge.  How does this compare with just the THS cooler. 

Secondly, how does the THS address the longstanding issue of the siting of the OEM cooler from heat-soak from the mega-hot coolant rad, and the equally hot air con condensor? 

Oh, and to be really pedant - shouldn't 'cubic area' better be described as 'volume'? 

[Hurdy]

Hurdy, how come you don't walk with bandy legs - 'cause you have some mooohassive cahoonies!!! 

I'm really waiting for updates on this - you crazy genius!!!   

I'm just waiting for the stuff to come from the USA, but I appear to have chosen the worst time of the year as they are all on summer break

Once everything has arrived then it should be about two to three weeks to build the engine and install it.

It should be a real step change in how it works.....going from around 350bhp to 450bhp, plus the Quaife, engine mounts and the all important R888's (track and fair weather permitting!)
One of the mods I'm quite interested in is the type of injector that they will be putting in. It has been designed specifically for the TFSI to match the spray pattern. Regal have changed to this injector and it bumped their car from the low to mid 400's with a little software tweakage

Certainly going to be exciting. As far as I know I will be the only person in the UK with a MKV gti who will have done this level of tuning with their own car (ie..not a company funded car!). I will also be the only one in the UK to have the rods and pistons as well as the turbo on a DSG motor.

[Hurdy]

A quick comparison shows that the ED30 volume is quite sparse compared with even the S3 cooler let alone the THS one.



Although the ED30 outlet appears better than the S3 version it is restricted after the connector down to under 40mm. The THS is straight in to the cooler at 57mm.

Do I see an error in your calculations?  Whilst you have included the relevent 'OEM' sited coolers, what about the Forge unit?  Because, some peeps (me included) have the S3 cooler in the OEM site, along with the Forge.  How does this compare with just the THS cooler. 

Secondly, how does the THS address the longstanding issue of the siting of the OEM cooler from heat-soak from the mega-hot coolant rad, and the equally hot air con condensor? 

Oh, and to be really pedant - shouldn't 'cubic area' better be described as 'volume'? 

Yes, you are right Sean, the combo of the Forge and an S3 would give a larger volume than the THS unit on it's own It was the flow rate that I was more interested in. The THS unit means that I can do away with the Forge front mounted IC and have the hot weather climate radiator added as well. This is added to Regal's car and does help cool the engine a little better.
DomT on the "other" forum has done some extensive logging and found that the cooler maintains a good 7 to 9 degrees above ambient even when driving hard as well as a flow rate of over 480g/s which is more than enough to cool the car at 450bhp levels.
You are right about the volume thing, but it wasn't my original table

[Teutonic_Tamer]

A quick comparison shows that the ED30 volume is quite sparse compared with even the S3 cooler let alone the THS one.



Although the ED30 outlet appears better than the S3 version it is restricted after the connector down to under 40mm. The THS is straight in to the cooler at 57mm.

Do I see an error in your calculations?  Whilst you have included the relevent 'OEM' sited coolers, what about the Forge unit?  Because, some peeps (me included) have the S3 cooler in the OEM site, along with the Forge.  How does this compare with just the THS cooler. 

Secondly, how does the THS address the longstanding issue of the siting of the OEM cooler from heat-soak from the mega-hot coolant rad, and the equally hot air con condensor? 

Oh, and to be really pedant - shouldn't 'cubic area' better be described as 'volume'? 

Yes, you are right Sean, the combo of the Forge and an S3 would give a larger volume than the THS unit on it's own It was the flow rate that I was more interested in. The THS unit means that I can do away with the Forge front mounted IC and have the hot weather climate radiator added as well.

OK, I sort of see your logic - but I still don't see how ditching the Forge can be fully compensated for when just using a cooler in the OEM position.    And anyway, wasn't the Forge proven to have a vastly improved flow rate too? 

This is added to Regal's car and does help cool the engine a little better.

But in the UK, acutal cooling of the engine hasn't been an issue!  Or have I missed sommat?

And how is the flow of coolant to the additional hot climate rad controlled?  On Audis, they are only flowed into when the ECU actually opens up separate thermostats - but I didn't think the Golf ECU supported that method?

DomT on the "other" forum has done some extensive logging and found that the cooler maintains a good 7 to 9 degrees above ambient even when driving hard as well as a flow rate of over 480g/s which is more than enough to cool the car at 450bhp levels.

Hmmmm . . . but I'm still having difficulty accepting that just the THS cooler can flow better than the S3 and Forge.  And I am still fairly adamant that the OEM mount cooler location (be that the standard plastic one, the S3, or the THS) can not overcome the inherent issues of heatsoak from the air con condensor, and the main coolant rad.  Even IF the hot clime rad can be flowed at max coolant volume, it will never be more efficient than the main central coolant rad - and therefore, the main coolant rad will still be dissipating the lions share of the engines heat - and some of that heat WILL radiate and conduct into the THS - irrespective of its flow rate.  It is this specific area which the Forge is able to 100% overcome - but standard location coolers cant.!!

You are right about the volume thing, but it wasn't my original table

Feeble excuse, John! 

[Hurdy]

OK, I sort of see your logic - but I still don't see how ditching the Forge can be fully compensated for when just using a cooler in the OEM position.    And anyway, wasn't the Forge proven to have a vastly improved flow rate too? 

Yes, Forge's has an improved rate too. There are a couple of reasons behind my decision. The THS cooler is basically the same size and flow rate as the APR offering, which they use on their stage 3 kits to good effect. Pipework for a THS to a twintercooler hasn't been developed (and most likely won't be due to cost etc v return), but if it was, then I would probably have both....'cos I'm greedy like that Steve was looking at changing the order of the rad/cooler/air con combo, to put the cooler first, but doesn't know if this is feasible or what effect it would have on the rad and air con operation.

Regarding the hot climate rad - I don't know how they make it work, but it does. I'll have to ask them exactly how though, for future reference

As for the table - it's my excuse and I'm sticking to it

[Dave-turbo]

sorry to drag up a old thread but im very intreasted in this turbo kit.

one question i have is what are the limits of the gearboxes in these cars?

[Teutonic_Tamer]

sorry to drag up a old thread but im very intreasted in this turbo kit.

one question i have is what are the limits of the gearboxes in these cars?

The actual gearboxes seem fairly bullet proof.  The clutches are always the weakest link, be that on a manual box, or the DSG.  But with the DSG, if you are looking at over 350bhp, then strongly consider a DSG oil change every year or 10k miles - 2 years or 20k at the very longest.

[Hurdy]

sorry to drag up a old thread but im very intreasted in this turbo kit.

one question i have is what are the limits of the gearboxes in these cars?

The actual gearboxes seem fairly bullet proof.  The clutches are always the weakest link, be that on a manual box, or the DSG.  But with the DSG, if you are looking at over 350bhp, then strongly consider a DSG oil change every year or 10k miles - 2 years or 20k at the very longest.

I did thanks to Sean (T_T) and it does work.

[RedRobin]

sorry to drag up a old thread but im very intreasted in this turbo kit.

one question i have is what are the limits of the gearboxes in these cars?

The actual gearboxes seem fairly bullet proof.  The clutches are always the weakest link, be that on a manual box, or the DSG.  But with the DSG, if you are looking at over 350bhp, then strongly consider a DSG oil change every year or 10k miles - 2 years or 20k at the very longest.

....Apart from the wisdom of more frequent DSG oil changes on cars over 350 bhp, what about a threshold for torque? - Cars over 300 ft lb?

[Teutonic_Tamer]

sorry to drag up a old thread but im very intreasted in this turbo kit.

one question i have is what are the limits of the gearboxes in these cars?

The actual gearboxes seem fairly bullet proof.  The clutches are always the weakest link, be that on a manual box, or the DSG.  But with the DSG, if you are looking at over 350bhp, then strongly consider a DSG oil change every year or 10k miles - 2 years or 20k at the very longest.

....Apart from the wisdom of more frequent DSG oil changes on cars over 350 bhp, what about a threshold for torque? - Cars over 300 ft lb?

I don't really know the definative answer to that.  The 'official' figure from VW was a torque limit of 250Nm, but in reality, there are many many highly tuned cars which must be pushing 350Nm, maybe even more - and not experiencing any DSG issues at all.

But regarding the actual oil change - this really is important - especially because when it is 'drained', it doesn't completely empty the transmission.  The 'total' volume of oil in the DSG is 7.2 litres, but only around 5.5 litres gets changed, so you'll always be left with some of the 'old' oil in the box.