Red Rose?

Red Rose?

Author
Discussion

chimi500

Original Poster:

307 posts

260 months

Tuesday 13th May 2003
quotequote all
Ihave a chimaera 500 , but my dad has a 4.5 l/w . he wants to know more about the conversion,
has anyone here has this done etc.
also is this the best way of getting more power from this engine
All help appreciated!

gazzab

21,108 posts

283 months

Tuesday 13th May 2003
quotequote all
Danny is the man to fill you in.
It is worth it if you want over 400bhp.
I think it is the only tested way of getting more power from a 4.5.
It is about 4.5K for the conversion.
Best to spend money on suspension and possibly brakes to get a better 'faster' car.
The engine mod is a faster car - but why do you need more speed? If you are a track day merchant with more cash than sense then do it!! Is that right Danny!!!?

dannylt

1,906 posts

285 months

Tuesday 13th May 2003
quotequote all
Absolutely spot on! But if you are a track day merchant, get a Caterham/Westfield/Radical instead.

danny

dannylt

1,906 posts

285 months

Tuesday 13th May 2003
quotequote all
Oh, the conversion entails higher compression, ported heads, different ECU mapping for 95 & 97 octane fuels, and different injectors. Possibly some other stuff too - like guaranteeing your engine is built consistently too.

danny

big t

1,337 posts

255 months

Tuesday 13th May 2003
quotequote all
Danny,

I know you've probably answered this on another thread but how long was your car at TVR to have the conversion done?

Also re the 95 / 97 ECU mapping, what benefit does that actually give having this dual mapping? My petrol cap says only use 95 but I was told I can also use Optimax (98), how does this work if I don't have an ECU mapping for the different octane fuels??

Do you think it was worth the 4 odd grand to have done if you probably don't get it back on the resell value and does it give you the 400BHP (or thereabouts) figure no matter what your engine was producing before the conversion?

T.

BCA

8,626 posts

258 months

Tuesday 13th May 2003
quotequote all
It produces that figure reguardless of the previous power output. Dannys car was already a good'un before it went in, there has been another car that was far lower on torque/bhp and has come out with even higher power and torque than Dannys. Not aloud to say anymore than that I dont think...

IF I owned the Cerb and had the spare cash I think I would go for it. However, your money is probably better spent on decent suspension/brakes/straight cut gearboxes etc etc. Im just a childish little kid who likes big numbers power wise

dannylt

1,906 posts

285 months

Wednesday 14th May 2003
quotequote all
The higher octane fuel on the standard car gives you same same power as 95, though less risk of pinking etc. You need to use more advanced ignition and more fuel to take advantage of the higher octane fuel, which is what the 97 map in the Red Rose conversion gives you.

danyn

d_drinks

1,426 posts

270 months

Wednesday 14th May 2003
quotequote all
As dannyit has said in order to get the benefit from a higher octane fuel weather Optimax (98 Octane) or a race fuel like 76 Racing Fuel (110-118 Octane) you need to have the engine tuned/re-mapped. Part of the RR conversion adds a mapping for 98 Octane fuel.

Dumping it in a standard car won't give you the full benefit, despite what Shell may offer on their adverts...

chimi500

Original Poster:

307 posts

260 months

Wednesday 14th May 2003
quotequote all
Well he's done it , booked in for 2nd june cost 4k plus vat and will take three weeks to do.....
will have to do somthing to the 500 next, h'e already taking the piss and calling it slow!!

markoso

52 posts

281 months

Wednesday 14th May 2003
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d_drinks said: Dumping it in a standard car won't give you the full benefit, despite what Shell may offer on their adverts...


If the car in question has an adaptive ECU then you will get some benefits without other mods. Unfortunately, not TVRs tho.

d_drinks

1,426 posts

270 months

Wednesday 14th May 2003
quotequote all

markoso said:

d_drinks said: Dumping it in a standard car won't give you the full benefit, despite what Shell may offer on their adverts...


If the car in question has an adaptive ECU then you will get some benefits without other mods. Unfortunately, not TVRs tho.





Yes i think that it can be assumed that if the car has an adaptive ECU then it will be more affective than a car without one. I should have mentioned that earlier

markoso

52 posts

281 months

Wednesday 14th May 2003
quotequote all
sorry for the pedantry - must be being at work that does it....

BCA

8,626 posts

258 months

Wednesday 14th May 2003
quotequote all
What is the standard ECU then?? It cant be a set map because it can get things incredibly wrong and then correct itself. We have had the car so it is slower than my Smart and quite literally hopped down a dual carriage way. After one slow 0-something run we turned around and did the same again. On the second run the car was nearly right again, the third run had it completely sorted.

If you have ever have the same problem you will notice the difference between it being confused and using the "correct" (still doubt any Cerbera is set up that well) set up.

Anyway, the higher octane stuff has improved our car, but only because it doesn't pink anymore, nothing noticeable performance wise though.

d_drinks

1,426 posts

270 months

Thursday 15th May 2003
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markoso said: sorry for the pedantry - must be being at work that does it....


Likewise – no offence intended

dannylt

1,906 posts

285 months

Thursday 15th May 2003
quotequote all
It is a set map, but has an adaptive map overlaid on top. This only happens below 4000rpm, and is according to the lambda sensors.

danny