Does the soft rev limiter sap power?

Does the soft rev limiter sap power?

Author
Discussion

SkinnyP

Original Poster:

1,411 posts

148 months

Monday 20th October 2014
quotequote all
The book figure for peak power is 7,200rpm however the soft rev limiter (when SPORT is not active) kicks in at 6,700rpm and the power starts tailing off.

Does this mean cars without Sport Chrono will never make peak power? 320BHP in the case of the Cayman S.

Hopefully there is no such thing as stupid questions...

WindyMiller67

426 posts

139 months

Monday 20th October 2014
quotequote all
My 997.2 3.8 doesn't have a Sport button and it definitely revs > 7000 on the tachometer.

SkinnyP

Original Poster:

1,411 posts

148 months

Monday 20th October 2014
quotequote all
Yes mine doesnt have SPORT either and it revs to over 7k, but by then the engine mapping is backing off completely and its time to shift up.

My point being, how can these cars make the quoted power if the engine is dying early?

I'm booked in to have SPORT retrofitted and I am looking forward to to getting rid of the girly rev limiter.

WindyMiller67

426 posts

139 months

Monday 20th October 2014
quotequote all
I thought it did that to protect itself (and warranty). Do you think the SPORT button is going to allow you to rev higher? Like Spinal Tap's Marshall amp going up to 11?!
Please post your experiences once you've had the retrofit.

SkinnyP

Original Poster:

1,411 posts

148 months

Monday 20th October 2014
quotequote all
It doesnt increase the maximum revs (at least in manual form), it simply keeps fueling all the way to the rev limiter.

More revs and more fuel means more power, at least that is my understanding.

Callughan

6,312 posts

191 months

Monday 20th October 2014
quotequote all
Same power different delivery

mollytherocker

14,365 posts

208 months

Monday 20th October 2014
quotequote all
You ask an interesting question skinny. Let us know your findings once youve had the work done.

SkinnyP

Original Poster:

1,411 posts

148 months

Monday 20th October 2014
quotequote all
mollytherocker said:
You ask an interesting question skinny. Let us know your findings once youve had the work done.
Off topic, but Molly your Insignia isnt red is it?

mollytherocker

14,365 posts

208 months

Monday 20th October 2014
quotequote all
SkinnyP said:
mollytherocker said:
You ask an interesting question skinny. Let us know your findings once youve had the work done.
Off topic, but Molly your Insignia isnt red is it?
No, boring silver I am afraid.

SkinnyP

Original Poster:

1,411 posts

148 months

Monday 20th October 2014
quotequote all
Was next to a red one in your neck of the woods with a PH sticker on it, hence the question smile

mollytherocker

14,365 posts

208 months

Monday 20th October 2014
quotequote all
SkinnyP said:
Was next to a red one in your neck of the woods with a PH sticker on it, hence the question smile
Ah right. Theres no PH sticker on mine, its not really a PH type of car! Its good at what it does though, snot up and down the motorways in comfort.

I did nearly buy a red one but this one was cheaper.