RE: 3.5 Bar Fuel Pressure Regulator

[ope126]

Hi Guys,

After some input here...

I am after added performance for minimal outlay.

I am aware that the stock 1.8L runs a 3.0 Bar FPR.

I have just installed a Turbosmart Manual Boost Controller (Tee Piece), after checking initial Boost 6 - 7psi; I just raised it to around 9psi (Big Difference!)

Anyway, I have heared that these cars can get starved of fuel under high boost / load in high gears.

I was thinking of adding a 3.5 Bar FPR and increasing the boost so it spikes; but holds a constant 12psi.

Now the car is currentley stock with only the addition of a K&N Panel Air Filter, full service history, synthetic oil etc.

However I have not modded exhaust / intercooler etc. In fact, I will never make mods to these areas due to cost / noise etc. (Personal Choice!)

If I was to add it and raise the boost again, I would get the car dynoed to check the boost/timing/air fuel mixtures etc.

So what are your thoughts!

Is th the 3.5 Bar FPR a waste of time?
Will it work with standad ecu, or will the A/F ratios be upset?
Is 12psi too much? (I put the boost guage on my mates MK4 GTI with an Oettinger Chip and it returned 12 -13psi!)
Will the stock 3.0 Bar FPR be able to cope with the increased boost?

I have searched / looked in depth on the vwvortex website, however they talk more about the 4.0 Bar FPR and generally don't give straight answers.

Thoughts / ideas...

Glenn

[ope126]

Back again...

I do know that there is also another dircetion that I can go;
- Silicone Tubo inlet Pipe (from airbox to turbo)
- Silicone Throttle Body to Intercoler Pipe
- Replace Pancake pipe (Lower Intercooler Pipe)
- TT Air Vent Kit for guard area.

But I would like to retain the stock apperance as much as possble, so that might rule out most of the above. Unless someone can convince me otherwise to the performance gains vs boost / 3.5 Bar FPR...

An no...I will not be going out to spend more than $1000.00 on a computer / chip!

Glenn

[Oli]

Hi mate
I try with 4 bar reg,stock ecu,it wont go....put back 3 bar again.

Oli

[ope126]

Hi mate
I try with 4 bar reg,stock ecu,it wont go....put back 3 bar again.

Oli

When you say it wont go; ECU dosen't respond to change / idles rough / no fuel delivery??? What do you mean?

That is why I thought I would go with the 3.5Bar FPR, as it is a happy medien. Also not much has been talked about in relation to the 3.5Bar FPR as it is still only fairly new on the market, so not too many people have had experiences with it.
I have heared that some Audi's A3/A4/S3/S4 VW Passat use a 4.0Bar FPR on stock 1.8L Turbo. Maybe they recalibrate the ecu?

Glenn

[fuzion]

you wont spend the $$ to get a chip and do things right which you will get a decent result, but you will spend, $80-200 here there to try get what a chip is getting (smoothly/safely) for that matter.. dude!

anyone who has a chipped golf can tell you the HUGE difference their getting!

save and get one you wont regret it!

i got 127.4kw and still missing a beat too with the chip and mods. without any mods i still his the 115+ mark. stock is 85-90. with a mbc you would be around the 90-95 mark

[gpk_gti]

- Silicone Tubo inlet Pipe (from airbox to turbo)
- Silicone Throttle Body to Intercoler Pipe
- Replace Pancake pipe (Lower Intercooler Pipe)
- TT Air Vent Kit for guard area.

these things you have mentioned are good,especially the TIP,as for the intercooler pipework,its good but not that noticable,maybe more noticable in hotter weather.you can change the lower turbo inlet pipe,which I have a second hand ABD racing one here,which does not need to change all the pipework,check my how to on installing a TIP for picks of the differences.

now,that in it self was a BIG difference in power,the stock one is very restrictive.TT vent mod,talk to shaneth for differences.Chips,,,well um,,,if I had my time again,I would have gone for a HALTECh or something similar that can be independantly tuned to the mods and car requirements,and best of all ,its interchangable with your car.another mod you can do thats "stock" is get your self a k03s of ebay or similar,bolt on,and feel the difference instantly! keep us up to date with your progress!!
have you noticed any problems with the car since adding the boost controller??

http://www.vwwatercooled.org.au/newforum/upload/showthread.php?t=3885

[DUB 20V]

these things you have mentioned are good,especially the TIP,as for the intercooler pipework,its good but not that noticable,maybe more noticable in hotter weather.you can change the lower turbo inlet pipe,which I have a second hand ABD racing one here,which does not need to change all the pipework,check my how to on installing a TIP for picks of the differences.

now,that in it self was a BIG difference in power,the stock one is very restrictive.TT vent mod,talk to shaneth for differences.Chips,,,well um,,,if I had my time again,I would have gone for a HALTECh or something similar that can be independantly tuned to the mods and car requirements,and best of all ,its interchangable with your car.another mod you can do thats "stock" is get your self a k03s of ebay or similar,bolt on,and feel the difference instantly! keep us up to date with your progress!!
have you noticed any problems with the car since adding the boost controller??

go haltech you cant go wrong...............

[shami]

Hey gpk,

the ko3, is that a direct bolt on without any other mods required???

[h100vw]

KO3s bolts straight on, no mods but you need new software to get the best from it.

Gavin

[fuzion]

k03s (k03 sport)
k04

same deal with both, for about $150-350US you can get a k0s3.

alternatively you can get a k04 for $900us new too

[shami]

Does that mean i cant use the oettinger chip i have??? Probably not...

[fuzion]

welll yes and no

yes, you will have to pay another x amount of dollars to get another for the k03s or k04 program

and no, i am serious.. lol

giac offer free upgrades for their customers apparently, so if u got a k03 chip and oyu upgrade to k03s/k04/gt28 you can get another chip free

but if you also go a haltch etc you could do the same by tuning it specifically.

[ope126]

Thanks for all the input guys, but can anyone help with the following;

Is th the 3.5 Bar FPR a waste of time?
Will it work with standad ecu, or will the A/F ratios be upset?
Is 12psi too much for the stock turbo? (I put the boost guage on my mates MK4 GTI with an Oettinger Chip and it returned 12 -13psi!)
Will the stock 3.0 Bar FPR be able to cope with the increased boost?

And once again, a $1000.00+ chip is out of the question.

Glenn

[fuzion]

Thanks for all the input guys, but can anyone help with the following;

Is th the 3.5 Bar FPR a waste of time?
Will it work with standad ecu, or will the A/F ratios be upset?
Is 12psi too much for the stock turbo? (I put the boost guage on my mates MK4 GTI with an Oettinger Chip and it returned 12 -13psi!)
Will the stock 3.0 Bar FPR be able to cope with the increased boost?

And once again, a $1000.00+ chip is out of the question.

Glenn

my 2psi would be to save and grab a chip when you have the money dude. you definately wont regret it, that or a standalone.

12 isnt to much but imo i wouldnt be doing it from what ive read/heard from people! but saying that some ppl hve no issues..

im sure everyone will give an opinion on this however!

[shami]

I agree with Fuzion get it chipped...it does cost a bit but oh soo worth it!