|
|
Post by roadtrackrace on Sept 11, 2010 12:29:05 GMT
Works demo car with soundtrack to die for...
RTR
|
|
|
|
Post by juddyjuddster on Sept 11, 2010 13:30:45 GMT
That is great to see and even better to hear that car looks very special.
Well done guys.
|
|
|
|
Post by nigel on Sept 12, 2010 9:44:22 GMT
Works demo car with soundtrack to die for... RTR Wicked video Guy's  So how about sharing some facts and figures with us  Like what engine is fitted and if its been tuned, whats been done as well as your preferred setup for tyres, suspension, brakes etc ? I appreciate its probably a bit early yet, but some some 'genuine' actual recorded (in car) performance figures would be nice, as theres just to much BS in this game. (I know Everyman Racing have got the equipment to do all this, so it shouldn't be a problem ) nigel |
|
|
|
Post by roadtrackrace on Sept 13, 2010 17:08:24 GMT
2 litre zetec with fast cams throttle bodies and WebCon engine management.
Momo Corse 16" wheels with 195-50-16 R888 tyres all round
Protech Shocks with 225lbs springs on the front and 350lbs springs on the back.
Infinitely varible camber adjusters all round.
It's being fine tuned at Webber in London tomorrow and next time we are out at Everyman we'll get it timed.
We did do lap times though and on the 1.7 mile track we managed 1'08" which is 2 seconds slower than the non supercharged Atom. Bear in mind that the engine is brand new and hasn't yet been tuned for our exhaust and manifold. It's also running standard brake pads which are still not bedded in yet. Mintex 1144 brake pads should see 1 second off of the lap times.
As a comparison, the best lap in our standard 1.8 Rocket was 1'16"... so therefore a result in anyones eyes.
RTR
|
|
|
|
Post by nigel on Sept 13, 2010 17:19:30 GMT
2 litre zetec with fast cams throttle bodies and WebCon engine management. Momo Corse 16" wheels with 195-50-16 tyres all round Protech Shocks with 175lbs springs on the front and 300lbs springs on the back. Infinitely varible camber adjusters all round. It's being fine tuned at Webber in London tomorrow and next time we are out at Everyman we'll get it timed. We did do lap times though and on the 1.7 mile track we managed 1'08" which is 2 seconds slower than the non supercharged Atom. Bear in mind that the engine is brand new and hasn't yet been tuned for our exhaust and manifold. It's also running standard brake pads which are still not bedded in yet. Mintex 1144 brake pads should see 1 second off of the lap times. As a comparison, the best lap in our standard 1.8 Rocket was 1'16"... so therefore a result in anyones eyes. RTR Thanks for the info that sounds wicked ;D Tyres R888's ? Little more info on the fast cams, throttle bodies and ECU used would be appreciated. I take it you'll be putting it on a rolling road while at Webber, love to see a printout of the results Can hardly wait to find out how well it will preform once its all setup correctly  Cracking Job RTR nigel |
|
|
|
Post by roadtrackrace on Sept 22, 2010 19:32:16 GMT
MEV Rocket M350 will be on track testing tomorrow weather permitting, exhaust mods, suspension tweaks, uprated brake pads, remapped to exhaust system..........more info to follow
184.3 bhp on the dyno yesterday and a whopping 208nm of torque, 90% of which is available between 3500 and 6500rpm.
Weight is 525kgs which gives 351bhp/tonne
It's now remarkably quick...
TEAM MEV
|
|
|
|
Post by bhowland on Sept 26, 2010 19:33:34 GMT
Could you please tell what the "conditions" were when the M350 was dyno ed? And the type of dyno used?
|
|
|
|
Post by roadtrackrace on Sept 27, 2010 6:34:48 GMT
Conditions? I'd have to check with the met office for that :-)
It was 18 degrees and dry.
It was dynoed by Troy at Northampton Motorsport after it had been tweaked by them.
I'm sure they would avail you of the Dyno spec if you contacted them.
RTR.
|
|
|
|
Post by roadtrackrace on Sept 30, 2010 19:07:43 GMT
Just thought I would update you guys after further track testing knocked nearly 2 seconds off the lap time at Everyman, Prestwold.
We have up-rated springs to 300lb 8" springs at the front and 500lb 7" springs at the back.
We then slowly increased the damping setting on the Protech shocks (standard fitment on all Rocket kits now) till the car was nicely settled on the track (turn 2 has a variety of bumps and cambers) and found that level 4 (out of 14) was spot on. Any more damping started to induce oversteer.
We also have 2 degrees of negative camber on both the front and the rear.
We then drove the car back from the track on trade plates on a variety of road surfaces with 2 people in the car and it was still compliant enough to be comfortable.
We will experiment with 600lb 7" springs at some stage but the front is now perfect.
RTR.
|
|
|
|
Post by The Joker on Sept 30, 2010 21:50:59 GMT
Thanks for the update, its nice to see some chassis development to complement the power increase.
I'm running 400lb rears (8") and 300lb (8") fronts and find the car is still too soft at the rear when cornering hard. I'm running about 4 clicks on the front with Gaz dampers and about 6 on the rear. It will be interesting to see where you get to with the rear spring rates.
2 degrees of camber sounds a lot (I'm at 1.5 front and was looking to reduce) but might now give it a try with more! Can you tell us the Castor setting (fully forward / back or somewhere in between) on the top arm?
How is the car under hard braking with this (front) camber setting?
How is high speed stability (90mph+)?
Keep up the good work !
|
|
|
|
Post by bhowland on Oct 1, 2010 2:00:15 GMT
Thank you RTR for publishing your dyno test and experiments with suspension setting.
|
|
mattsmev
Senior
It's only Rocket science...
Posts: 726
|
Post by mattsmev on Oct 1, 2010 10:53:40 GMT
Thanks RTR for the settings. very good to get some feedback from a car that is doing regular race laps with experienced drivers, I am the first to admit that i don't know enough about this complicated subject.
Even with my lighter engine I am running 400lbs 8" springs at the rear. I still have standard springs at the front, which appear OK, but maybe I need to up rate them.
Camber is a bit of a compromise between grip and tyre life. even though i use two sets of tyres i use the same camber setting on both and don't want to wear the inside edge out too quickly. I am running a bit less than 2 degs for this reason.
It would be really good to see the M350 on track. Will you be able to attend the next CKC/OMEX day at Llandow next year. (no dates yet), I'd like to see how far off it's pace I am.
Cheers
mattsmev
|
|
|
|
Post by Tim Kerr on Oct 1, 2010 14:56:00 GMT
Does anyone know what the original spring rates are that came with the original kit? Looking at upgrading my springs as part of my winter mods.
|
|
|
|
Post by The Joker on Oct 1, 2010 16:23:40 GMT
Tim,
I believe the standard springs as supplied are 300lb rear and 175lb front. Some kits may have been supplied with slightly higher rated front springs (200lb?).
If you still running the standard springs you won't be getting anywhere near the best out of the car on your track days. Just look at the Curborough (and CKC) photo's of my car with standard springs, body roll is 'significant'. Target for body roll on track should be just 1.5 degrees.
I think we need to start a 'handling thread' in the tech section ;D
|
|
|
|
Post by nigel on Oct 1, 2010 18:46:57 GMT
...............I think we need to start a 'handling thread' in the tech section ;D I think you'll find there is already a 'Handling and Suspension Set-up' sub-section within the 'Technical Section', where much of the above and any further posts on this subject would be better placed. nigel |
|
