Volkswagen Mark IV Forum banner
1 - 20 of 28 Posts

·
Registered
Joined
·
1,561 Posts
Discussion Starter · #1 ·
Hi people, i need a simple question answered.. has my 150bhp (log book says that!) been modified by its previous owner? -

(2001 Y reg Golf 1.8Turbo - standard wheels etc.. - totally stock..)

ill put some examples of why i think it has...

I have read on other posts that most peoples 150bhp golf tops out @ 120-125... mine does 145

Max Speeds in each gear.

1st gear - 45mph

2nd gear - 75mph

3rd gear - 100mph

4th gear - 120mph

5th gear 140-145mph

on the engine itself, someone has written " 2.4 Bar " - is this a standard for fuel / turbo pressures?

on pull away it keeps exactly level with a BMW 330 up to around 100, where the beemer then gradually pulls away (this is not a one off... have had several instances like that!)

I have butchered other GTi's reguarly.. and have never (yet) been out accellerated with another.

Id like to say its obviously because its not what you've got its how you drive it, but i think id be flattering myself a little too much lol.

oh, and ive had the car 3 years, and im coming up to needing my second clutch.

Any comments or suggestions would be cool.. and obviously i could take it to a Rolling road, but i just dont have the cash at the moment, so just personal experiences would be a great help!

Thanks!
 

·
Registered
Joined
·
1,561 Posts
Discussion Starter · #3 ·
From around 3500rpm right upto 6000 it pulls hard, and everything gets louder!

i have pretty much NO power either side of that rev range
 

·
Registered
Joined
·
15 Posts
sounds as though its already been played with then mate

when i first had my A3 it was standard and as i remember it the turbo was audible up to around 3krpm and then after that it sounded as though it stopped working

the remap turned it into a completely different animal!

reminds me a few months ago i had a play with a BMW 330 and he couldnt lose me, i would have no doubt i wouldnt have been able to keep up if i was running a standard map, unless it was actually a 316 with a 330 badge [:p]
 

·
Registered
Joined
·
438 Posts
I have read on other posts that most peoples 150bhp golf tops out @ 120-125... mine does 145
Is that top speed based on the speedo. If so I wouldnt read to much into that as I've had my 1.4 up to an indicated 120mph with several miles run up (reading to swindon.....) and the book speed for that is 107mph.

But based on your power band and whats been written on the engine, I'd say its been modified!

Peter
 

·
Registered
Joined
·
165 Posts
Fit a boost gauge, even if only temporary. They are cheap and easy to fit, and it will soon let you know what the deal is. Does sound like its been tweaked though. It will be pumping a good 15psi or so if fiddled with.
My AWU (KO3S) Jabba'd Bug can just about shake 330's even on the motorways. Its close, but can definitely have them.
 

·
Registered
Joined
·
1,561 Posts
Discussion Starter · #8 ·
Peter,

thanks for the reply, i did forget to mention that i also use an origin B2 GPS camera detector, and that my speedo is no more than 7% out using the current speed indicator on the B2 (and yes, i know there is around a second delay between changes in speed.. but if you are doing the same speed for 30seconds its a fairly good benchmark)

:)
 

·
Registered
Joined
·
438 Posts
Fairplay then mate, sounds like its definately been modded already!

What does 150 feel like in the golf, feels rock steady at my vmax?

Peter
 

·
Registered
Joined
·
1,686 Posts
Seems strange you get to race a 330 (Edit; forget the D [;)]) on several occasions, you must have a friend with one? If not then how do you know they are racing, probably just toying with you, i think if you`re going out to buy a 1.8t and it pulls like a 330d you should know when you first put your foot to the floor its modified.
 

·
Registered
Joined
·
438 Posts
Seems strange you get to race a 330d on several occasions, you must have a friend with one? If not then how do you know they are racing, probably just toying with you, i think if you`re going out to buy a 1.8t and it pulls like a 330d you should know when you first put your foot to the floor its modified.
Who said anything about it being a derv, but fair point none the less, for instance i've raced a 911 and won.......

Peter
 

·
Registered
Joined
·
1,561 Posts
Discussion Starter · #12 ·
Seems strange you get to race a 330d on several occasions, you must have a friend with one? If not then how do you know they are racing, probably just toying with you, i think if you`re going out to buy a 1.8t and it pulls like a 330d you should know when you first put your foot to the floor its modified.
it wasnt a 330d was a 330 !

No, the nearest my friends have is a 320d :) - ive had my car 3 years, and ive encountered around 4 of the above mentioned Beemers.. What can i say, perhaps im just lucky?

As far as cars 'toying' with you, u can normally tell by the way the cars lurch when they change gear, and also.. i have ears...! - a 330 thats being driven hard isnt quiet.
 

·
Registered
Joined
·
1,686 Posts
Yeah someone else pointed out that i was on about a D, but infact i didnt mean to put it there,i edited it before your post i think.Anyways to be honest though the majoirty of 330`s sold are Auto`s, and i doubt they`d take their ?20,000++++ car to redline, and i cant imagine many of them being racers, more like business men, i hate to put labels on people but i see the customers who bring their Bmw`s to where i work.You get M3`s that are never taken past 3000Rpm. Ill "borrow" a customers car and race you , hah just joking, fair play if you can prove me wrong
 

·
Registered
Joined
·
1,729 Posts
You've had the car 3 (THREE) YEARS and you ask this question now?

You gotta be kidding!!!!!!!

PS: the 2.4 bar does NOT mean that is the amount of boost your car is now running. If it was...it would have a humongous turbo that firstly can cope with running that much boost and even if it was standard turbo your engine/turbo would both have blown up by now.

And if you were getting 2.4 bar of boost with a bigger turbo...you'd be killing a lot more cars than BMW 330's I'd imagine and should comfortably see 150mph in no time at all.

So all in all....no idea about what your car has. Put it on a Rolling Road and see what it is pumping out.
 

·
Registered
Joined
·
1,561 Posts
Discussion Starter · #16 ·
Yeah someone else pointed out that i was on about a D, but infact i didnt mean to put it there,i edited it before your post i think.Anyways to be honest though the majoirty of 330`s sold are Auto`s, and i doubt they`d take their ?20,000++++ car to redline, and i cant imagine many of them being racers, more like business men, i hate to put labels on people but i see the customers who bring their Bmw`s to where i work.You get M3`s that are never taken past 3000Rpm. Ill "borrow" a customers car and race you , hah just joking, fair play if you can prove me wrong
I do hear ya... but remember where im from... Essex, the land of boyracers and drug dealers, the type of people who drive M3's and 330's etc are not people in suits.. (shell suits maybe ho ho ho)

this wasnt meant to get into a 'i can whooop a 330' i was just trying to give examples of what i have seen as a benchmark...

not having any test equipment to hand, and not having the cash at this time to spend out on a dyno.. i can only give examples :)

borrow a customers car.. that sounds like the way forward.. lol
 

·
Registered
Joined
·
1,561 Posts
Discussion Starter · #17 ·
You've had the car 3 (THREE) YEARS and you ask this question now?

You gotta be kidding!!!!!!!
I have been asking the question, but its not been the most important thing going on in my life.! - and ive only joined the forum today, and asked today!

PS: the 2.4 bar does NOT mean that is the amount of boost your car is now running. If it was...it would have a humongous turbo that firstly can cope with running that much boost and even if it was standard turbo your engine/turbo would both have blown up by now.
i wasnt sure what the 2.4bar meant, thats why i mentioned it, and as for blowing up.. about 9months after buying the car, it developed a very noticeable blow, i took it to kwikfit thinking it was the exhaust, only to be told there was a blow from the turbo, had it 'repaired' at my local garage, who had the turbo reconditioned (apparently) - and its now making that sound again.. so i dont know..

the problem ive got is i got the car when i had money, however the business went tits up, and im still trying to get my feet back on the ground, so i have not had the time/money to have the car properly looked at. The local garage is by no means 'specialist'

So all in all....no idea about what your car has. Put it on a Rolling Road and see what it is pumping out.
hmm... i have no idea either! - that was the whole idea of the post! and as already mentioned, dont have the cash for a dyno right now!

[*-)]
 

·
Registered
Joined
·
1,729 Posts
actually, in light of your problems with the car going on a RR is probably the last place you wanna take it as they will be doing Full throttle power runs and with a dodgy sounding turbo thats been reconditioned already due to previous probs it might be on its last legs again. But they should analyse the problems for you tho.

I reckon you've got a remapped ECU of some sort but it doesn't sound too good a map if its killed a turbo already and has now killed a clutch for the 2nd time. May even be a bleed valve mod (cheap and nasty)

That is too much torque/boost too quickly. Previous owner might have even done some other adjustments on the turbo (actuator etc) on top of a map to make the turbo perform the way you have mentioned.

Sorry to hear about ya cashflow problems but if this isn't looked at properly by a reputable mechanic now u're looking at a much bigger bill in the future I say.

Hope it doesn't cost you too much to sort it when you get round to it.
 

·
Registered
Joined
·
1,561 Posts
Discussion Starter · #19 ·
actually, in light of your problems with the car going on a RR is probably the last place you wanna take it as they will be doing Full throttle power runs and with a dodgy sounding turbo thats been reconditioned already due to previous probs it might be on its last legs again. But they should analyse the problems for you tho.

I reckon you've got a remapped ECU of some sort but it doesn't sound too good a map if its killed a turbo already and has now killed a clutch for the 2nd time. May even be a bleed valve mod (cheap and nasty)

That is too much torque/boost too quickly. Previous owner might have even done some other adjustments on the turbo (actuator etc) on top of a map to make the turbo perform the way you have mentioned.

Sorry to hear about ya cashflow problems but if this isn't looked at properly by a reputable mechanic now u're looking at a much bigger bill in the future I say.

Hope it doesn't cost you too much to sort it when you get round to it.
my plan is to look at the K04 turbo upgrade, i would rather physical upgrades instead of software ones (just a reliability issue i feel) seen as the turbo will prob need replacing anyway, getting a K04 with a remap sounds like the way forward, - ive read up breifly and i think im looking at around ?2k - (if anyone has any experiences on the K04 thing please let me know!) i just hope the car lasts long enough for me to get the spondooolies together...

anyone in essex area know of any tuners that would take on that kinda upgrade ?

:)
 
1 - 20 of 28 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top