Rumoured 300BHP RX8

[20B_boy]

Take a Renesis apart and check out the induction system - its a serious peice of work - they spent a lot of time to get the power out of it... Compare it to the power a normal N/A 13B makes...

[MikeLMR]

300hp N/A takes some serious work ... just look at the IPRA engines in aus !

[Carl]

The acheivable power potential of the 13 b is actually around 350hp in N/A form,some have made 380hp.(Flywheel)
To do this on a road car with emmissions gear,driveabilty and still N/A would be almost impossible.
The Renesis engine is a normal engine Rich, just the next phase of development of the 13b in N/A form.
The only way of achieving the power suggested by TW Whites in my opinion is by increasing the revs,and the ability of the engine to breathe through more engine porting,new inlet manifolds and exhaust manifolds too.then there is the fueling and ecu tuning.
Regards
Carl

[Ricco_04]

What would a optimax remap and a slightly higher flow cat give you?

I think the power output of the current one is impressive as it is.

The output of the engines they use in the Satar Mazda is 240Bhp and they dont have any emissions regulations?

[zevans]

The acheivable power potential of the 13 b is actually around 350hp in N/A form,some have made 380hp.(Flywheel)

Does the side-exhaust setup increase or decrease potential power? The idea as I understand it is to reduce overlap, so I guess that does lower the potential ceiling on revs and power. OTOH there\'s 30% more port x-section than on the 13B already, so if you port a 13B you\'ve only just caught up...

I imagine once you\'re over 10k revs you\'re into serious bespoke gearboxes and sparks, right? Which is cool in a race car, but in a car for the retail market?!

[Spectre26]

Just got an email from my dealer at T W Whites. An official update for all of u. So heres how it reads.


We have been developing the car since April this year.Originally  we made a rich fuel map and adjusted to suit.

We still have a lot  more mapping work to do including;

1.    Refine all aspects of acceleration

2.    Remove any flat spots

3.    Refine cold start/hot start performance

4.    Ensure all aspects of OBD are fully functional

5.    Confirm combustion temperatures and air fuel ratio generally

6.    Confirm acceptable emissions for future MOT tests

7.    Set up closed loop Lambda correction

Once this is complete we can then confirm power and torque output with final ECU settings. Coast down to establish accurate power/torque readings at flywheel (to compare to factory figures). Aside from performance figures we do need to finalise a few ‘cosmetic’ changes.

I am happy with pricing and can confirm a retail price of under £30k which will include full Mazda Speed Body Kit and track session with a current B.T.C driver.

We are now the largest RX 8 dealers in Europe and have sold over 1000 new/used RX 8’s. I will only bring this car to the market if my technical people ‘sign it off’. All the salespeople were shown the car on Monday 10th October. It does look ‘stunning’ but we need to get the magical 300 with back up official power/torque output graph that can be used in the marketing/sales of this model. If we have any doubts about the vehicle I will abandon the project.

Once we are happy (and I have sorted out the warranty) I would be happy for 3 or 4 of you to come to Bookham to ‘test it’ prior to its launch.You guys know your vehicles and ‘won’t pull any punches’.

A lot of dealers ‘stretch the facts’- we are trying to be honest with you and keeping you up to date with this project.

Give me a call if you want to try the car before launch â€" I think we will definitely get the 300 â€" but the car will never deliver the torque level found in Evo’s etc. It just can’t be done â€" that’s the downside.

Neil White


So wonder who would be up for that test drive then eh? :p

[mattmaclennan]

If they get 300hp out of it in N/A form for under £30k I\'ll do a quarter mile on a unicycle, naked, in december. If they get anywhere near that figure it will be unreliable, undrivable and the result of finding the "more power" button that Mazda haven\'t told anyone about.

Sorry... that sounded really angry... I\'m not angry, I\'m just ssssssssoooooooooooooooooo sceptical. I don\'t doubt the abilities of who ever is tuning their 8, I just can\'t see them getting the power out of it for under 30k

[20B_boy]

Originally  we made a rich fuel map and adjusted to suit.

We still have a lot  more mapping work to do including;

1.    Refine all aspects of acceleration

2.    Remove any flat spots

3.    Refine cold start/hot start performance

4.    Ensure all aspects of OBD are fully functional

5.    Confirm combustion temperatures and air fuel ratio generally

6.    Confirm acceptable emissions for future MOT tests

7.    Set up closed loop Lambda correction

Once this is complete we can then confirm power and torque output with final ECU settings. Coast down to establish accurate power/torque readings at flywheel (to compare to factory figures). Aside from performance figures we do need to finalise a few ‘cosmetic’ changes.

LOL, is that ALL they have left todo?

[zevans]

LOL, is that ALL they have left todo?

LOL - they\'ve done all of the mapping apart from any actual mapping then?

Matt - time to invest in a tandem!

[maximtaylor]

I\'ll join you Matt, can\'t see it happening without going forced induction.

If they get 300hp out of it in N/A form for under £30k I\'ll do a quarter mile on a unicycle, naked, in december.

[Ianmcurtis]

LOL - Maybe they should fit LED repeaters & bulbs to save on power loss too..........;-)

[mattmaclennan]

I hope I haven\'t started something here.... Strip @ The Strip? Someone should get in touch with SantaPod, the whole  Club could be doing it for Cancer Research next... I didn\'t say anything, I had nothing to do with it, I wasn\'t even there when someone suggested it.

A 300hp Rx8 would be a dodle anyway, just rip out the untuneable plastic engine and throw in a TII motor with some nice ports and a turbo... da daaa all for under £30K By the way, I\'d quite happily do this for £10k LOL

[zevans]

A 300hp Rx8 would be a dodle anyway, just rip out the untuneable plastic engine and throw in a TII motor with some nice ports and a turbo...

Must... not... feed... troll...

...although that would be a lot easier than getting a T-IIs brakes, suspension, stiffness, and drivetrain up to RX8 standard, eh? :p

[Ianmcurtis]

T2? Didn\'t James Cameron do that film ;-).

[kevint]

Saw this advert at the MPH show at Earl\'s Court today: