golf gt tdi 150 performance mods.
golf gt tdi 150 performance mods.
Author
Discussion

SteveGy

Original Poster:

24 posts

175 months

Wednesday 18th April 2012
quotequote all
hi i have a mk4 golf gt tdi 150 and was wondering if there are any performance modifications i can do to get it running at 200bhp give or take a little, if so what can be done and how much cost wise

Thanks smile

BorkFactor

7,278 posts

186 months

Wednesday 18th April 2012
quotequote all
Start off with a good remap, should set you back £200 - £400 depending where you go and you can get some pretty impressive power gains.

See here :

http://www.pistonheads.com/gassing/topic.asp?h=0&a...

SystemParanoia

14,343 posts

226 months

Wednesday 18th April 2012
quotequote all
fit a r32 engine

SteveGy

Original Poster:

24 posts

175 months

Wednesday 18th April 2012
quotequote all
thanks , someone mentioned getting a intercooler for a good power gain, any ideas what intercooler to go for and how much they cost?

SteveGy

Original Poster:

24 posts

175 months

Wednesday 18th April 2012
quotequote all
lol, dont think my budget covers an R32 engine

Bezerk

475 posts

187 months

SteveGy

Original Poster:

24 posts

175 months

Wednesday 18th April 2012
quotequote all
wasnt exactly thinking Nos either lol

SystemParanoia

14,343 posts

226 months

Wednesday 18th April 2012
quotequote all
open the glove box and fold the back seats down ? hehe

chris watton

22,547 posts

288 months

Wednesday 18th April 2012
quotequote all
First, I would ensure that the brakes, suspension, bushes and cooling system are designed to take/handle an extra 50bhp - if not, these need addressing before anything else.

SteveGy

Original Poster:

24 posts

175 months

Wednesday 18th April 2012
quotequote all
SystemParanoia said:
open the glove box and fold the back seats down ? hehe
lol

Motorrad

6,811 posts

215 months

Wednesday 18th April 2012
quotequote all
A remap will take you to near 190bhp. You could fk about with charge cooling and exhausts but ultimately why bother? The chassis can't really handle the 190bhp and the clutch can't handle the torque. An aggressive remap is enough given the capabilities of the rest of the car IMO.

300bhp/ton

41,030 posts

218 months

Wednesday 18th April 2012
quotequote all
SteveGy said:
wasnt exactly thinking Nos either lol
Why not it's very affective.

Diesel tuning is all about getting as much fuel into the motor and not melting anything. So maps work well as an increased boost. Bigger intercooler to keep the AIT's down and bigger exhaust to try and reduce EGT's.

Bigger turbo's, head work and cams are all further tuning options too, but evidently add cost and complexity.

Other options then come from running propane kits and/or nitrous oxide. Try YouTube and find the vid where Fifth Gear added Nitrous to a Golf and very nearly upset a Honda NSX. If you speak to the guys at Wizards of Nos they'll tell you the article was slightly fluffed and it was a lower spec car to start with and they wouldn't do all the mods, if they had chances are it would be been even quicker again.

J4CKO

46,612 posts

228 months

Wednesday 18th April 2012
quotequote all
chris watton said:
First, I would ensure that the brakes, suspension, bushes and cooling system are designed to take/handle an extra 50bhp - if not, these need addressing before anything else.
It is sort of down to the driver, still have to pay attention to speed limits, you dont have to use all the extra power all of the time, it will handle it but it is down to how well, but the main concern is the clutch as they generally dont, not for very long.

podwin

652 posts

230 months

Wednesday 18th April 2012
quotequote all
I have heard of the phrase "chocolate camshaft" when referring to the 150 engine.

Don't know the ins and outs, but it's why the 130 is often regarded as the best compromise.

Have a quick google.

chris watton

22,547 posts

288 months

Wednesday 18th April 2012
quotequote all
J4CKO said:
chris watton said:
First, I would ensure that the brakes, suspension, bushes and cooling system are designed to take/handle an extra 50bhp - if not, these need addressing before anything else.
It is sort of down to the driver, still have to pay attention to speed limits, you dont have to use all the extra power all of the time, it will handle it but it is down to how well, but the main concern is the clutch as they generally dont, not for very long.
Respectfully, I don't agree. If you add a lot more power, you will use that extra power, without a doubt. Now, if the brakes and suspension are set up for that car's standard power output, the first time you hit a corner at a little extra speed than you're used to, then you could be in trouble. Equally, if you're on a straight and approach a roundabout/junction a little too fast - the brakes may fade before you need to stop. These are big issues, and I maintain that they need to be sorted before any other mods are implemented.

ETA - from what I have read on here (I don't know Golfs at all), if the posts about the camshaft are true, then a bottom end rebuild would be required before moving onto the top end - if you don't want the engine to explode..)

Edited by chris watton on Wednesday 18th April 10:40

300bhp/ton

41,030 posts

218 months

Wednesday 18th April 2012
quotequote all
chris watton said:
J4CKO said:
chris watton said:
First, I would ensure that the brakes, suspension, bushes and cooling system are designed to take/handle an extra 50bhp - if not, these need addressing before anything else.
It is sort of down to the driver, still have to pay attention to speed limits, you dont have to use all the extra power all of the time, it will handle it but it is down to how well, but the main concern is the clutch as they generally dont, not for very long.
Respectfully, I don't agree. If you add a lot more power, you will use that extra power, without a doubt. Now, if the brakes and suspension are set up for that car's standard power output, the first time you hit a corner at a little extra speed than you're used to, then you could be in trouble.
Respectfully that's a stupid opinion. If you are such a bad driver then you shouldn't be on a road at all.

What would happen if the same person jumped from a standard 150PD Golf into a 300hp '71 Trans Am? Such a change would be a far bigger leap than what you've just described.

chris watton said:
Equally, if you're on a straight and approach a roundabout/junction a little too fast - the brakes may fade before you need to stop. These are big issues, and I maintain that they need to be sorted before any other mods are implemented.
How can you sort them when you don't know?

What if it's a standard car and they drive too quickly and it's hot out, the brakes might still fade.... same result as you've just described.

J4CKO

46,612 posts

228 months

Wednesday 18th April 2012
quotequote all
chris watton said:
J4CKO said:
chris watton said:
First, I would ensure that the brakes, suspension, bushes and cooling system are designed to take/handle an extra 50bhp - if not, these need addressing before anything else.
It is sort of down to the driver, still have to pay attention to speed limits, you dont have to use all the extra power all of the time, it will handle it but it is down to how well, but the main concern is the clutch as they generally dont, not for very long.
Respectfully, I don't agree. If you add a lot more power, you will use that extra power, without a doubt. Now, if the brakes and suspension are set up for that car's standard power output, the first time you hit a corner at a little extra speed than you're used to, then you could be in trouble. Equally, if you're on a straight and approach a roundabout/junction a little too fast - the brakes may fade before you need to stop. These are big issues, and I maintain that they need to be sorted before any other mods are implemented.

ETA - from what I have read on here (I don't know Golfs at all), if the posts about the camshaft are true, then a bottom end rebuild would be required before moving onto the top end - if you don't want the engine to explode..)

Edited by chris watton on Wednesday 18th April 10:40
The Mk4 Golf was a bit of a wobbly thing anyway, can see your point and you are right but realistically on an old Golf I dont think the OP will be rebuilding the car to take account of the extra power.

I remapped my Saab 9-3 and it gained nearly 40 bhp (210 to 250) and the standard setup coped admirably, the brakes were epic before and were still so with the additional power, never saw any fade. The suspension coped though I did put some Eibach springs on due to one cracking but I dotn think that was power related, just a common fault so to me the having to uprate everything argument is slightly out of date and does depends to a certain extent on the specific car, modern cars tend to be better endowed in terms of brakes and suspension, my older cars tended to be marginal under braking at standard power outputs, Mantas, Capri's, Mk1 Golf's but now the braking hardware is way way more powerful relative to the performance, ditto wheels and tyres and the suspension, if in good order and at the higher end of the manufacturers range is usually up to the job, pretty much everything has anti roll bars nowadays which didnt use to be the case.

Also, and this might not be a very popular response but most cars nowadays have some form of Stability control to keep the ham fisted driver a bit safer than they would have been in the past.

So, my thinking is most modern cars will cope with a hike in power, it is the driver that really needs uprating most of the time.

SteveGy

Original Poster:

24 posts

175 months

Wednesday 18th April 2012
quotequote all
300bhp/ton said:
Why not it's very affective.

Diesel tuning is all about getting as much fuel into the motor and not melting anything. So maps work well as an increased boost. Bigger intercooler to keep the AIT's down and bigger exhaust to try and reduce EGT's.

Bigger turbo's, head work and cams are all further tuning options too, but evidently add cost and complexity.

Other options then come from running propane kits and/or nitrous oxide. Try YouTube and find the vid where Fifth Gear added Nitrous to a Golf and very nearly upset a Honda NSX. If you speak to the guys at Wizards of Nos they'll tell you the article was slightly fluffed and it was a lower spec car to start with and they wouldn't do all the mods, if they had chances are it would be been even quicker again.
would Nos not cause any damage to any part of the car mechanically ?

chris watton

22,547 posts

288 months

Wednesday 18th April 2012
quotequote all
300bhp/ton said:
chris watton said:
J4CKO said:
chris watton said:
First, I would ensure that the brakes, suspension, bushes and cooling system are designed to take/handle an extra 50bhp - if not, these need addressing before anything else.
It is sort of down to the driver, still have to pay attention to speed limits, you dont have to use all the extra power all of the time, it will handle it but it is down to how well, but the main concern is the clutch as they generally dont, not for very long.
Respectfully, I don't agree. If you add a lot more power, you will use that extra power, without a doubt. Now, if the brakes and suspension are set up for that car's standard power output, the first time you hit a corner at a little extra speed than you're used to, then you could be in trouble.
Respectfully that's a stupid opinion. If you are such a bad driver then you shouldn't be on a road at all.

What would happen if the same person jumped from a standard 150PD Golf into a 300hp '71 Trans Am? Such a change would be a far bigger leap than what you've just described.

chris watton said:
Equally, if you're on a straight and approach a roundabout/junction a little too fast - the brakes may fade before you need to stop. These are big issues, and I maintain that they need to be sorted before any other mods are implemented.
How can you sort them when you don't know?

What if it's a standard car and they drive too quickly and it's hot out, the brakes might still fade.... same result as you've just described.
So in summary, you think it's ok to work one the engine only, increase the power significantly, and not touch the standard brakes, which are designed to stop a car with less BHP and torque?

When researching into upgrading one of our cars, I was always hit with the same advice - get brakes and suspension sorted first. You don't think that's a good doctrine?


SystemParanoia

14,343 posts

226 months

Wednesday 18th April 2012
quotequote all
SteveGy said:
300bhp/ton said:
Why not it's very affective.

Diesel tuning is all about getting as much fuel into the motor and not melting anything. So maps work well as an increased boost. Bigger intercooler to keep the AIT's down and bigger exhaust to try and reduce EGT's.

Bigger turbo's, head work and cams are all further tuning options too, but evidently add cost and complexity.

Other options then come from running propane kits and/or nitrous oxide. Try YouTube and find the vid where Fifth Gear added Nitrous to a Golf and very nearly upset a Honda NSX. If you speak to the guys at Wizards of Nos they'll tell you the article was slightly fluffed and it was a lower spec car to start with and they wouldn't do all the mods, if they had chances are it would be been even quicker again.
would Nos not cause any damage to any part of the car mechanically ?
your floor will fall out..