turbo options

[VWindahouse]

They say the Polo's engine (well rods) can handle 300hp and 400nm crank power so I'm at the limit with torque and that's what will bend your rods. So without doing rods would be a gamble for sure. If that's what you mean by pray?

The only thing you missed is a custom dyno tune from someone with E85 experience. I'm lucky in James from BPS has done plenty. This is the only way to get the big gains and safely. Oh and if you just pulled up to a E85 pump and drove off you would send your little 1.8t to heavan.

[kaanage]

Basically E85 has been heralded as the miracle fuel. All the Internationl drift and time attack cars are moving to it but it's only good for forced induction.

It'll give decent gains for N/A engines if they are tuned for it (and by that I mean increased compression as well as ECU tweaking) but just as with boosted engines, you need to up the fuel delivery a LOT to allow for the lower caloric value of the fuel. It's just that you can never get the same power increase for a N/A engine vs a boosted one.

[noone]

http://forums.vwvortex.com/showthread.php?4782217-DIY-a-complete-guide-to-convert-your-chipped-1.8T-to-run-on-E85-FlexFuel-ethanol-(in-4-easy-steps)

Looks doable, maybe I should look around for vendors before I get carried away...

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Oh, 1 place sorta close.... Painful.
I wonder how much it would cost if the govt stopped covering the price difference, I think it would be a lot more than 98 if there wasn't government input.

[VWindahouse]

Fair enough!

[clicht]

And just when I thought I had settled on a larger turbo, this comes about .... Thanks Anthony ))

[VWindahouse]

It never ends lol! You should see my wish list at the moment

[Bug_racer]

I would suggest a Franken or JBS04 with E85 tune. That way no lag and even more power than the garrett and safe for the engine. Although rods would be a great idea. Stock position for your new 3" DP too

I doubt it . Look at the flange size of a gt28rs vs stock , then look at rear exhaust housing sizes , inlet size and even if the wheels are bigger (which Im kinda doubting but it is possible since ATP use to do it but stopped due to exhaust housing cracking) , youve got restrictions everywhere stopping decent flow !

[Bug_racer]

Our resident VW specialist (JMac) told me to steer clear of anything larger than a K04 untill I'm ready for an engine rebuild .... Whilst we have a 1.8 20V T, not all 1.8 20V Ts were created equal ..... VW skimped on the internals on the BJX a bit apparently. (Also the reason any dyno of a MK4 GTI with bigger turbo is pointless as a comparison as the MK4 had a "better" engine)

So if you want to go larger than a K04 in a Polo, get ready to spend $$$ on strenghtened internals.

Hence the reason I'm going K04 1st and then later larger when the car has done enough kms to warrant a full rebuild on the engine and internals. Forged pistons, rods and other bits need to be upgraded to run a GT reliably for more than a few 1000 kms.

I beleieve a K04 can be had, installed for less than $2500 including software ...... With other mods I'm expecting 160kw atw then. Problem is that is the level where clucth and other drivetrain components need to be done as well.

You dont have to do pistons if they are still in good conditions . The only musts if your doing a gt28RS would be a set of rods and decent piston rings . If youve done higher mileage look at getting the valve springs checked and replace the exhaust valves . The VR6 clutch is plenty for a gt28rs . Remember your going to struggle to get much more than 200kw ATWs with it .

[VWindahouse]

I doubt it . Look at the flange size of a gt28rs vs stock , then look at rear exhaust housing sizes , inlet size and even if the wheels are bigger (which Im kinda doubting but it is possible since ATP use to do it but stopped due to exhaust housing cracking) , youve got restrictions everywhere stopping decent flow !

So you've tried the combo then? Spend much time on Vortex? It's very common to have Franken Turbos hit 300hp with Meth and E85. Not to mention JBS04 has bigger inlet and rear housing than the Franken http://www.jbsautodesigns.co.uk/prod...age-3-supplied Not sure if the compressor wheel size is bigger then franken.

[Njay]

can you go with the Frankenturbo F23, they make a more power compared to the Franken F4HT, personally I wouldnt go with anything bigger on a k04 cause your just good end up with a lot of traction issues

[vwthunder]

can you go with the Frankenturbo F23, they make a more power compared to the Franken F4HT, personally I wouldnt go with anything bigger on a k04 cause your just good end up with a lot of traction issues

Let us know when it is done, will be interesting to see how it is. even tho i would like a bit more power, in the cold weather it struggles for traction in 2nd gear, you can be doing 60 and stab the loud pedal and it will spin one wheel, only gets traction at 90-100km/h

[Njay]

[Njay]

im gonna put an electronic boost controller so that for everyday driving im not gonna be wheel spinning everywhere

[Bug_racer]

So you've tried the combo then? Spend much time on Vortex?

No , I havent and I wont try it .
I use to , got sucked in by an advertiser claiming to be the greatest thing since sliced bread , turned to **** . Ever since then my belief has always been take anything said by sponsoring vendor on forum with a grain of salt . If you know of any actual 1/4 mile times with car weight to back the power claims Im happy to analyse that .