Regal Autosport Vf Engineering RS/S S3

[Juber]

Lol you guys are pretty funny!

You can believe what you like, it seems like a few of you have no idea what power these S3's are actually making, the turbo I have is a GT2871R with a .86 hotside which is non standard.. Hence the increased power over the standard RS/S numbers, also with the S3 running stronger internals the engine is being pushed slightly further..

Comparing power made on the 1.8T to the 2.0T FSI is completely pointless, its a completely different engine.. Also the K04 on the 1.8T and the K04 found on the 2.0T are completely different, for starters the 2.0T K04 is a twin scroll turbo..

What are you basing your estimates of power on exactly? Figures made with K04 and GT28 turbos on a 1.8T?? If so then you need to do a little research..

Woah chill out mate! No ones bi*ching at you :

 

[RobDon]

You may want to have a quick look at the VF Engineering site..

More like 385BHP & 350FT/LBS for the RS/S and 485bhp & 410FT/LBS for the RS/R

http://www.vf-accessories.com/

You need to read it better m8 :

http://www.vf-engineering.com/index.php?v=/cat-index-turbo.php

RSS kit - 345bhp, 328lbft torque.

Also their demo car has more on it than the kit. Even so, 336whp on a dynojet is pretty much the same as 345 at the crank.

http://www.vf-accessories.com/rss.php

Doesn't really matter as the figures just don't add up either before or after so come to your own conclusions. Regal have a terrible reputation, especially in Vauxhall circles.

 

[jonnyc]

Im completely chilled but it doesnt look like im going to get anywhere here..

Im very happy with all of the work and the result (which is the most important thing) and have no reason to believe that its running anything less than 400bhp after a couple of run in's with some different cars..

I would just like to know why you are so skeptical of the figures?

The S3 runs a much bigger intercooler as standard and higher compression over the Golf GTI's 2.0T FSI engine, combined with the larger than standard RS/S turbo, thats the difference in power..

APR have made 420+ WHP on a GT2871R turbo fitted to a MK5 GTI in the US.. It is possible with this turbo..

 

[ibizacupra]

anyone seen UK figures on a few dyno's yet to see how they fare in real life on these shores.

 

[jonnyc]

When I get a chance Ill be taking my car to a few of the group Dyno days, will have a fair comparison then, as we did on the day where my car ran along with Zboyd's Cupra, mine made 337bhp and 342ft/lbs, that was on the K04 turbo before the full 3inch exhaust and PCV mods were fitted..

 

[Deckedr32]

You need to read it better m8 :

http://www.vf-engineering.com/index.php?v=/cat-index-turbo.php

RSS kit - 345bhp, 328lbft torque.

Also their demo car has more on it than the kit. Even so, 336whp on a dynojet is pretty much the same as 345 at the crank.

http://www.vf-accessories.com/rss.php

Doesn't really matter as the figures just don't add up either before or after so come to your own conclusions. Regal have a terrible reputation, especially in Vauxhall circles.

Are you referring to the plot done on 91 or 93 octane?

Here in the UK I tend to use 99 octane.... Not sure where you get ur fuel from but I have a suspicion that the fuel you buy will be a higher octane rating too, this will give you more power over quoted figures on a lower grade fuel. Generally the higher the octane the bigger the bang, therefore more power......

I'm sure JonnyC would be using a higher octane fuel therefore would be up on power.
I have seen cars dyno'd once on 95 ron, then 98 ron and gained 30HP (Subaru impreza). Therefore a specifically tuned car on 99ron, I could see gaining 30-40bhp with ease.
I don't doubt those figures at all.

I say fair shout to the guy who’s come on here to inform you of what your Cupras are capable of if anyone was looking into tuning these VAG engines.

 

[ibizacupra]

dont forget RON vs MON comparison when looking at octanes cross atlantic

 

[RobDon]

Indeed, 93 octane in the US is more like 98 over here.

 

[Deckedr32]

It's PON in the US, 93 is about 97 IIRC.

 

[ZBOYD]

When I get a chance Ill be taking my car to a few of the group Dyno days, will have a fair comparison then, as we did on the day where my car ran along with Zboyd's Cupra, mine made 337bhp and 342ft/lbs, that was on the K04 turbo before the full 3inch exhaust and PCV mods were fitted..

337 isn't 350 plus though Jonny with a k04. Adding a full 3" exhaust really doesn't make that much difference, S3 or not.

I pretty much discounted all my figures that I can't compare against other people under the similar conditions. Mine did 316hp indicated at ProSport where we also discovered it used a PS style german figure so in fact was running nearer to 311hp. Not sure if you rounded your 337 figure down or not. I would have to remind myself on your graph, but mine held it's power consistently across the rev band. Where it might not give a huge headline figure it holds its headline figure solidly from 4500rpm up to the limiter with little fall off.

The point people have been trying to make is that some of the calculations look a bit on the optimistic side that's all.

Awesome's rollers have indicated mine around 305hp, -+ either way it isn't bad compared to the figures from ProSport. Mine of course doesn't have the intake or larger core intercooler that your S3 had/has. however you look at it.

I think i covered this in my posts on Audi-sport that people get far to hung up on headline figures. Figures which may or may not be accurate especially when run on a single RR which is run by the tuner in question. Which also appear were not run under ideal conditions, same gear runs etc..

Plus that different tuners tend to map differently, some look for solid midrange or torque, others just want to see how much horsepower they can squeeze out of them in a straight line (not always that great for driving).

There are some very knowledgeable people here on SCN, who have been messing about with big turbo kits in some cases for a very longtime, and know them inside out. Rather than telling them how to suck eggs, I've learned a great deal from them.

Skepticism is a healthy thing and it's not because we disbelieve you. You only know what your told in essence, years of going over this kind of subject a great deal tells us don't believe everything your told and do you own research.

As i've already said no doubting you have a great kit, but when people post something up on these forums at least. We don't just stick our head in the sand and say that's a great product we'll buy it. We tend to ask questions, sometimes the questions we ask can be the opposite to the tuners point of view.

 

[ryan_s3]

The new 2.0t k04 is the one slightly smaller size to a gt28r not the 1.8t one.
The cc of the car doesn't affect the power potential of a turbocharger. It only affects how the power is delivered in the rev range.
I think it's a bit presumptuous to say we have "no idea" ,i think most of the people on this thread probably have more clue than regal do.
A .86 a/r is just a option on a gt2871r there is no such thing as a standard gt2871r.
power is power whatever engine we are comparing it on,your not running twin scroll now are you!

"I would just like to know why you are so skeptical of the figures?"

because there is no way that a gt2871r at that boost levels will get 400bhp,let alone with that aweful adapter.

Not getting at you mate i have been guilty of tuner rose tinted glasses in the past,i'd be interested to see you attend a dyno day at either marlin(maha) or awesome(dynojet) with others.
my predictions ,305 atw awesome gti
360 fwhp maha

 

[m0rk]

is there a pic of this adaptor? I'm curious now

 

[ryan_s3]

 

[m0rk]

square facing onto the exhaust? that's not the smooth line it'll want

 

[ryan_s3]

it's not ideal.Basically a adapter.look at the size of the hotside.They claim 50hp over remapped figures at 1.5bar held to redline and 360fwhp.regal's dyno is nowhere near 1.5bar.

 

[chungster]

didn't realise they used an adapter! thought it was a straight match up with the OEM downpipe or same spec (like Millteks)

 

[HTC]

Can't see all the inside edges of that spacer, but as far as I can tell, thats not a great design. Overlapping edges can be beneficial for NA engines creating a scavenging effect. However, for a turbo engine any restriction is bad. Can only see the bottom edge protruding. Can't see if it's flush at the turbine end.

Also those exposed edges will get extremely hot

 

[jonnyc]

Sorry when I said .86 AR compared to standard, I was meaning over the 'standard' RS/S 2871r which comes with a .64 AR

I appreciate that some of you guys will know a lot more than me when it comes to this stuff, but I have a good understanding of how power relates to feel in a car, and mine is not 360bhp now..

The reason for the adapter plate is for customers who would prefer to run the kit with the standard downpipe or a readily available downpipe for whatever car the kit may be installed on..

I dont really think that Regal/GIAC are number hunting, the car is making over 340bhp & 385ft/lbs at just over 4000rpm, I would class that as a pretty strong mid range!

As far as I know the adapter plate does not interfere with the flow of the turbo, ill try and find some pics of the piece in question, I agree, and restriction that close to the turbo is pretty bad news!

Jonny

 

[ryan_s3]

Increasing the a/r will no doubt help the tiny hotside but probably 20bhp at most imo.
At the end of the day if your happy with the power then don't get too hung up on figures.
Regal will try and get the numbers as this is what brings in business,as a matter of course i have always taken my car onto a independant dyno to check tuners claims.
Get along to the next RR day and enjoy what you have paid your hard earned for.

 

[h17och]

i think a marlin rr day is in need