What is the easiest way to get extra BHP without remapping?

I'm thinking of things i can do myself to learn a bit, before i give it to some one else to do things for me.

Which Octavia is this on?

The only real things you can do is help with airflow through the engine, so you'd be looking at fitting a performance exhaust system, air filter, FMIC would help a lot even without a remap. If its a petrol, simply using Super UL / Optimax would help a fair bit.

Its an Octavia vRS.

Was looking at a Cold Air Intake but was told would not improve BHP.

A remap is probably the most cost effective tweak

You have a 20V turbocharged 1.8 litre engine that is *not* using what it *already* has in the way of components to anywhere near its full potential.

In my case I saw little point in adding expensive parts that would make little difference when I could gain a large difference in driveability and performance form a quick visit to Awesome GTI.

If you wanted to go further than a 'phase 1' re-map then it would make sense to fit any extra parts before having it tuned on a rolling road.

I'm not planning to take it any further, hence getting the re-map at the outset.

Its an Octavia vRS.

Was looking at a Cold Air Intake but was told would not improve BHP.

True, most of the bolt on bits of piping will only assist you in making the peak power out put go further over the rev range, ie, flatter dyno plots. This applies to a larger intercooler too. This does make the car more driveable in that you'll get more torque lower down or longer peak power the closer the red line you get.

For more power you need to remap to instruct the injectors to chuck more fuel in for a greater volume of air generated by higher boost from the turbo.

Mechanically-speaking you need to do stuff to proper engineering (the old-fashioned way of tuning), like increase cc and different cam profiles etc.

:wavey: Hi Lee. Is yours anywhere closer to nearing completion?

As you say though, the good old fashioned tuning is needed if no remap. How about a bigger turbo? I personally wouldn't do any mechanical mods to an engine if I didn't have the ultimate aim to refine the way the engine runs to make use of those mods. Its standard, or tuned. There's very little inbetween those two....

:wavey: Hi Lee. Is yours anywhere closer to nearing completion?

Soon I am assured by Neal (turbo has been ordered)

You want more bhp without a remap? Install This:

It is beautiful. I have it in my 02 4x4 hatch and it's my only mod. Dial to the left and you get stock performance for everyday driving. If you happen to find some raceboy at the lights, just dial to the right and you get up to 14.5 psi (1 bar) boost which should allow you to spank a few. This is completly plug-n-play. It modifies the signal to the N75 to control the boost. I dont know how it works/feels in a vRS, but it works like a charm in my 4x4.

After this, i think you should install the usual bolt-ons (intake, exhaust, downpipe, TIP, etc etc) which are in my to-do list for this year.

where can you buy that? wanting a boost controller for mine! but mine is running 16 psi solid!?

where can you buy that? wanting a boost controller for mine! but mine is running 16 psi solid!?

I see in your sig that you've done a remap and you said you're running at 16psi, so by installing this you'll lose about 1.5 ~ 2psi.

http://www.freedomdesign.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=FD&Product_Code=93545

hi just fitted one of those in my vrs makes the car so much quicker removes the flats spots as well plus turbo spoils up quicker

but without a proper remap doesn't that run the risk of running lean? that is a very bad thing indeed. POP!

The best way to get any car out perform any others in the range is to improve the handling!

If you can break later into a corner, drive like it's on rails round the corner, you'll get away and smile!

Start with the suspension, then the breaks. You'll need all this when & if you go for the re-map.

Do this first mate, you'll be amaized.

the ecu compansates with more fuel i have run the controller with no problems standard map with be fine up to 14.5 psi

so just how good is this thing then because it sounds a bit too good to be true especially for something that you can fit yourself:confused:

does it give a very noticable increase in performance as no doubt their bhp claims are going to be a bit ott:D

the ecu compansates with more fuel i have run the controller with no problems standard map with be fine up to 14.5 psi

What does a standard car run in terms of psi?

standard it runs at 7psi now i dont run at 14 psi all the time. the controller is fairly easy to install you have to wire it up to the ecu wire harnes ive had mine on for a while now and its handy if you wanna spank a few butts dont get me wrong car is still fast at standard psi its just nice to have that little extra.plus the online shops that sell them are vag specialists not some back street shop

You want more bhp without a remap? Install This:

It is beautiful. I have it in my 02 4x4 hatch and it's my only mod. Dial to the left and you get stock performance for everyday driving. If you happen to find some raceboy at the lights' date=' just dial to the right and you get up to 14.5 psi (1 bar) boost which should allow you to spank a few. This is completly plug-n-play. It modifies the signal to the N75 to control the boost. I dont know how it works/feels in a vRS, but it works like a charm in my 4x4.

After this, i think you should install the usual bolt-ons (intake, exhaust, downpipe, TIP, etc etc) which are in my to-do list for this year.[/quote']

How do you deal with running out of fuelling at high boost, using standard injectors?

well all i can say is ive had no probs with mine i dont run at 14.5 all the time surley if the engine run that lean the lamba senser would pick it up if any one has delts about it maybe ask the supplyier some questions

What about laughing gas............:orb_laugh

well all i can say is ive had no probs with mine i dont run at 14.5 all the time surley if the engine run that lean the lamba senser would pick it up if any one has delts about it maybe ask the supplyier some questions

Well yes and no. The Llambda sensor will try to enrich the mixture if it thinks the car is running lean, but I was talking about running out of ability to flow more fuel through the injectors.

Suppose that the standard car flows A litres of air per minute at B peak revs and boost, and that demands F cc/min of fuel.

You now increase boost, with the effect of increasing peak airflow to 2A l/min, then retaining the same mixture requires 2F cc/min of fuel. Typically production injectors will be specified to supply 1.1 to 1.5 F at peak demand, so you'd finish up running lean at high boost, as the injectors just can't flow the fuel you need.

shouldn't be a problem, think about all the people with just a remap - a regular remap would probably see you at over 14PSI, peaking at 18-20PSI

What does a standard car run in terms of psi?

150bhp 1.8T's run around 7psi, 180bhp 1.8T's run around 11.5psi

My understanding regarding the running lean issue is that the lambda will adjust fueling on part throttle but on full throttle the car runs in closed loop so is likely to run lean.

150bhp 1.8T's run around 7psi' date=' 180bhp 1.8T's run around 11.5psi

[/quote']

if thats the case then upping the boost to 14psi isnt going to do a great deal for performance then:confused: