Should a mk1 172 pull from a.....

[_Tom]

Chipped, filtered ,exhaust and decated valver?

Say you were both on a dual carridgeway in the right hand lane but being held up by a car infront, the car moves over and say you both go for it? Basically from about 4k revs in both?

Should the 172 pull and by how much?



(This is all hypothetical BTW)

 

[viceroy]

theoretically Id think the 172 would pull a few carlengths to topend because of the extra power and torque

 

[_Tom]

Yeha i could see that deffo happening. 5th is probs stronger in the 172.

What about to the end of 4th though as we are talking about on a dual carridgeway?

 

[geordiepaul]

Trouble with the MK1 172 is that there is big difference (too big) between 4th and 5th which make 5th pretty much a cruising gear only. The MK2 has much better gearing for driving fast (tho the MK1 handles better )

 

[George16v]

I prefer the mk1s gearing by a long way to the cup I had. I can cruise in 5th gear at 80 and the car is sits at about 3800rpm where as the cup would sit just above this, meaning more noise and less economy. The mk1 I have does 120 in 4th if this helps you to work out the difference..

 

[Smokey]

The Mk1 172 would win fella, however if it was a Williyfied Valver then its very close but the Hybrid has the edge. From personal experiances of owning both

 

[_Tom]

Cheers Smokey!

You say your willyfied valver has the edge, what mods does it have?

 

[Smokey]

Its got a HillPower IK and Magnex Catback Exhaust with homemade straight throu pipe de-cat.

It is close but its the power below 5k rpm that makes the difference.

The 172 is very similar to the 16v (just a bit slower), you find yourself waiting for the revs to build up then it takes off at 4.5-5k rpm, but waiting for those revs seems to take an age when youve got some chav in his Nova/Saxo sat on your tail pipe.

However the Williams is like the 182, you have 80% of your power from 2.5k rpm and you get the extra 20% at 4.5-5k rpm.

This is the best way i can describe the differences.

 

[_Tom]

Yeah im feeling you smokey!

So with regards to my first post, if you were in second gear in a modded 16v following a standard 172 on a dual carridgeway. Road clears, both in second at 4k revs-ish would the 172 leave the 16v? Because in my experience they dont? Bearing in mind the valver will always be on cam from the start.

 

[geordiepaul]

I dont think its so much down to power with the differences between MK1 172 and the MK2 172/182 but the fact the fact that the gearing is different. It was the first thing I noticed getting the Mk1. Its a much better motorway cruiser but a little harder to keep in the power!

 

[George16v]

Quote: Originally posted by geordiepaul on 02 November 2004

I dont think its so much down to power with the differences between MK1 172 and the MK2 172/182 but the fact the fact that the gearing is different. It was the first thing I noticed getting the Mk1. Its a much better motorway cruiser but a little harder to keep in the power!

Agree with you mate, But would advise you to get a chip as it makes all the difference with regards to keeping it in the power!!

 

[geordiepaul]

Quote: Originally posted by George16v on 02 November 2004

Quote: Originally posted by geordiepaul on 02 November 2004

I dont think its so much down to power with the differences between MK1 172 and the MK2 172/182 but the fact the fact that the gearing is different. It was the first thing I noticed getting the Mk1. Its a much better motorway cruiser but a little harder to keep in the power!

Agree with you mate, But would advise you to get a chip as it makes all the difference with regards to keeping it in the power!!



What chip?

 

[Smokey]

Quote: Originally posted by Tom16v on 02 November 2004


Yeah im feeling you smokey!

So with regards to my first post, if you were in second gear in a modded 16v following a standard 172 on a dual carridgeway. Road clears, both in second at 4k revs-ish would the 172 leave the 16v? Because in my experience they dont? Bearing in mind the valver will always be on cam from the start.





Id say it would be very close call mate. I dont think either would have the advantage

 

[_Tom]

Quote: Originally posted by Smokey on 02 November 2004

Quote: Originally posted by Tom16v on 02 November 2004


Yeah im feeling you smokey!

So with regards to my first post, if you were in second gear in a modded 16v following a standard 172 on a dual carridgeway. Road clears, both in second at 4k revs-ish would the 172 leave the 16v? Because in my experience they dont? Bearing in mind the valver will always be on cam from the start.






Id say it would be very close call mate. I dont think either would have the advantage

fair enough which seemed pretty much the case in my experience!

Cheers for your knowledge smokey! Legend

 

[Martin]

I would expect the 172s power to give it a definate edge over 100 but they vary so much- Ive heard of 172s running between 14.6 and 15.7 up the 1/4 all standard(ish)...

 

[viceroy]

Quote: Originally posted by geordiepaul on 02 November 2004

Quote: Originally posted by George16v on 02 November 2004

Quote: Originally posted by geordiepaul on 02 November 2004

I dont think its so much down to power with the differences between MK1 172 and the MK2 172/182 but the fact the fact that the gearing is different. It was the first thing I noticed getting the Mk1. Its a much better motorway cruiser but a little harder to keep in the power!

Agree with you mate, But would advise you to get a chip as it makes all the difference with regards to keeping it in the power!!




What chip?

something like the SMT6 or Unichip will help.

Ive got the mk1 172 and my power band went from 5400-6500 to 4500-7000

but the biggest gains were at 1500-2000 rpm where I gained another 17lb.ft

 

[u33db]

Quote: Originally posted by Tom16v on 02 November 2004


Chipped, filtered ,exhaust and decated valver?

Say you were both on a dual carridgeway in the right hand lane but being held up by a car infront, the car moves over and say you both go for it? Basically from about 4k revs in both?

Should the 172 pull and by how much?



(This is all hypothetical BTW)

IMO with those mods the 172 will pull the minute the valver hits 4th gear (90 or so). Throw in some cams, straightthough exhaust, loose the IK and 17s and itll even things up a bit more - maybe keep you ahead until you hit 5th. Once in 5th though itll be 172 all the way - however by then youll be doing about 110 - fast enough i think...

 

[_Tom]

Hmm dont know what happened n this occasion then!? Seemed very very very close!

i havent got a I/K on there mate. Ive got an ITG panel filter. Have got 17s though....

 

[u33db]

Probably your chips raised limit helping you out i think. 172s seem to suffer from being off cam in the same way that valvers do IMO - a little gutless when not on it.

 

[Smokey]

^^^^^^^^^Bingo