How many HP is enough?

How many HP is enough?

Author
Discussion

antonio.cocchi

Original Poster:

172 posts

44 months

Sunday 13th September 2020
quotequote all
I know, hp is never enough, but...
Road use (italian's Alps and Appennini) and maybe a couple of track day. Which is the right Power? Is 130/140 enough for not to be bored? 200?

Discombobulate

4,840 posts

186 months

Sunday 13th September 2020
quotequote all
antonio.cocchi said:
I know, hp is never enough, but...
Road use (italian's Alps and Appennini) and maybe a couple of track day. Which is the right Power? Is 130/140 enough for not to be bored? 200?
I used to think 110 was a lot (Mk1 GTI) but it's amazing how you get used to more (560 in my latest car - albeit much heavier than the Golf). I think 300 is my min now for daily.

antonio.cocchi

Original Poster:

172 posts

44 months

Sunday 13th September 2020
quotequote all
Discombobulate said:
antonio.cocchi said:
I know, hp is never enough, but...
Road use (italian's Alps and Appennini) and maybe a couple of track day. Which is the right Power? Is 130/140 enough for not to be bored? 200?
I used to think 110 was a lot (Mk1 GTI) but it's amazing how you get used to more (560 in my latest car - albeit much heavier than the Golf). I think 300 is my min now for daily.
I'm Just refering in a Caterham or other kit car, wow, 300 on 500kg must be funny😬

Turn7

23,608 posts

221 months

Sunday 13th September 2020
quotequote all
Mine has 150 and thats fine, more HP could make potentially more overtakes an option, but thats about it on the road......

antonio.cocchi

Original Poster:

172 posts

44 months

Sunday 13th September 2020
quotequote all
Turn7 said:
Mine has 150 and thats fine, more HP could make potentially more overtakes an option, but thats about it on the road......
thumbup

ForzaGilles

558 posts

224 months

Monday 14th September 2020
quotequote all
I would say for road use, 160-170bhp is enough - if you intend to track it, 200bhp+. 160bhp to 200bhp doesn't sound like that much, but I swapped out my 1.6 160bhp K-Series for a VHPD 200bhp K-Series and it's quite a big difference - I remember the first drive after the engine swap vividly smile

antonio.cocchi

Original Poster:

172 posts

44 months

Monday 14th September 2020
quotequote all
ForzaGilles said:
I would say for road use, 160-170bhp is enough - if you intend to track it, 200bhp+. 160bhp to 200bhp doesn't sound like that much, but I swapped out my 1.6 160bhp K-Series for a VHPD 200bhp K-Series and it's quite a big difference - I remember the first drive after the engine swap vividly smile
driving

Amris

157 posts

168 months

Monday 14th September 2020
quotequote all
I would say between 180-220 for road and track, maybe 180-200bhp in a k series, or 200-220 in the later Duratec's as they are a fair bit heavier.

Also helps to have some extra oomph if you have passenger and boot full when touring :-)

antonio.cocchi

Original Poster:

172 posts

44 months

Monday 14th September 2020
quotequote all
Amris said:
I would say between 180-220 for road and track, maybe 180-200bhp in a k series, or 200-220 in the later Duratec's as they are a fair bit heavier.

Also helps to have some extra oomph if you have passenger and boot full when touring :-)
Forgot to say
I have to buy at least a 20YO car

Amris

157 posts

168 months

Monday 14th September 2020
quotequote all
i'd definitely say Superlight R then :-)

antonio.cocchi

Original Poster:

172 posts

44 months

Monday 14th September 2020
quotequote all
Amris said:
i'd definitely say Superlight R then :-)
yes

jimPH

3,981 posts

80 months

Monday 14th September 2020
quotequote all
I had 220, but it was lacking, so upped it to 270 and that was much bigger improvement. The only problem was i added a 6 speed sequential, fully stripped and bare bones carbon trimming so it was, how can i put it, a bit harsh. As such, driving was fun, but any more than an hour or so and it was tiring. Always felt a bit too highly strung too and mad me sweat on account of breaking lots of engines, so i sold it.

Was a great car, but if i got another one, it would be geared more towards road use so i can enjoy it more.

antonio.cocchi

Original Poster:

172 posts

44 months

Monday 14th September 2020
quotequote all
jimPH said:
I had 220, but it was lacking, so upped it to 270 and that was much bigger improvement. The only problem was i added a 6 speed sequential, fully stripped and bare bones carbon trimming so it was, how can i put it, a bit harsh. As such, driving was fun, but any more than an hour or so and it was tiring. Always felt a bit too highly strung too and mad me sweat on account of breaking lots of engines, so i sold it.

Was a great car, but if i got another one, it would be geared more towards road use so i can enjoy it more.
Which engine?

BertBert

19,039 posts

211 months

Monday 14th September 2020
quotequote all
For me I'm happy with k series supersport levels of power, so max 140. I've been up to 230, then down again.

The concept that tracks are boring unless you up the hp is a strange concept to me. straights are inherently dull so having 260 bhp or more doesn't make them more interesting.

Reaching the available grip on corners is where the fun is, not mega acceleration for me.

YMMV
Bert

antonio.cocchi

Original Poster:

172 posts

44 months

Monday 14th September 2020
quotequote all
BertBert said:
For me I'm happy with k series supersport levels of power, so max 140. I've been up to 230, then down again.

The concept that tracks are boring unless you up the hp is a strange concept to me. straights are inherently dull so having 260 bhp or more doesn't make them more interesting.

Reaching the available grip on corners is where the fun is, not mega acceleration for me.

YMMV
Bert
thumbup

PiersR

107 posts

156 months

Tuesday 15th September 2020
quotequote all
In all the old reviews, the sweet spot was always the R300K with 160 BHP. If you can get a K series with this, it will be perfect. However, 130 - 150 BHP with a Superlight or Roadsport will also be pretty rapid. Although very high power is fun, you will have to maintain it more and reliability could be an issue. My advice is to get a standard car and work from there. There are plenty of Caterham Owners in Italy as they have a great meeting there once a year. You should make contact with them for information. They may even know of a car for sale that may suit you.

antonio.cocchi

Original Poster:

172 posts

44 months

Tuesday 15th September 2020
quotequote all
PiersR said:
In all the old reviews, the sweet spot was always the R300K with 160 BHP. If you can get a K series with this, it will be perfect. However, 130 - 150 BHP with a Superlight or Roadsport will also be pretty rapid. Although very high power is fun, you will have to maintain it more and reliability could be an issue. My advice is to get a standard car and work from there. There are plenty of Caterham Owners in Italy as they have a great meeting there once a year. You should make contact with them for information. They may even know of a car for sale that may suit you.
Price in Italy are crazy and there are not a lot of choice. I will pick up a from UK.😉

jimPH

3,981 posts

80 months

Tuesday 15th September 2020
quotequote all
antonio.cocchi said:
jimPH said:
I had 220, but it was lacking, so upped it to 270 and that was much bigger improvement. The only problem was i added a 6 speed sequential, fully stripped and bare bones carbon trimming so it was, how can i put it, a bit harsh. As such, driving was fun, but any more than an hour or so and it was tiring. Always felt a bit too highly strung too and mad me sweat on account of breaking lots of engines, so i sold it.

Was a great car, but if i got another one, it would be geared more towards road use so i can enjoy it more.
Which engine?
2.0 Duratec, 54mm raceline bodies, big valve hi port head, dry sump, saenz rods, hi comp pistons, kent cams plus various other bits. I was going to put extensions on the trumpets and it could have done with a good 4-2-1 exhaust instead of the 4-1, but it was pretty fruity.

antonio.cocchi

Original Poster:

172 posts

44 months

Tuesday 15th September 2020
quotequote all
jimPH said:
antonio.cocchi said:
jimPH said:
I had 220, but it was lacking, so upped it to 270 and that was much bigger improvement. The only problem was i added a 6 speed sequential, fully stripped and bare bones carbon trimming so it was, how can i put it, a bit harsh. As such, driving was fun, but any more than an hour or so and it was tiring. Always felt a bit too highly strung too and mad me sweat on account of breaking lots of engines, so i sold it.

Was a great car, but if i got another one, it would be geared more towards road use so i can enjoy it more.
Which engine?
2.0 Duratec, 54mm raceline bodies, big valve hi port head, dry sump, saenz rods, hi comp pistons, kent cams plus various other bits. I was going to put extensions on the trumpets and it could have done with a good 4-2-1 exhaust instead of the 4-1, but it was pretty fruity.
Wow...
Reliability?

Murph7355

37,714 posts

256 months

Tuesday 15th September 2020
quotequote all
BertBert said:
...
The concept that tracks are boring unless you up the hp is a strange concept to me. straights are inherently dull so having 260 bhp or more doesn't make them more interesting....
The one time you want more is when on a track day with heavy metal that is hopeless around corners but demonic down straights.

I remember being in my 140bhp 7 on track with a Cerbera and experiencing precisely this. It was getting in the way on the twisty parts, then leaving me for dead on the straights and the process would repeat.

Of course I could hold right back to gain space...but before very long at all I'd be on its tail and the same thing would repeat.

200bhp, plus more practice, saw an end to that.

This is in a K-series car before the Duratec era. Mine was a home brew 200bhp car (DVA head etc) and much more civilised than Caterham's own versions. Eminently usable on the road.

Go much higher in a K-series and usability diminishes quickly IME. Duratecs may be different (never driven one) but a K is nice and light and they sound great on throttle bodies.