JDM Castle Combe 2019 - Saturday 1st June

Past events that the Club & Members have attended. Read-only.
User avatar
mrspiller
Club Member
Club Member
Posts: 2458
Joined: Wed Dec 02, 2015 7:04 pm
RX-8: 231
Colour: Copper Red
Location: Hengoed - South Wales
Has thanked: 130 times
Been thanked: 285 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by mrspiller » Fri Jun 07, 2019 7:30 am

boosted wrote:There was a few off them thats fine get off the throttle follow through...i appreciate that 1 rx8 wants to overtake another and i have a distinct advantage with 120bhp more so we have fun, this was slam brakes on...wtf moment lol. I asked to go from the back so part n parcel of it...lol wish i hadnt said anything now lol...

Sent from my SM-N950F using Tapatalk
So Jon
What is the BHP on your 7 ?
I though it was more judging by the way you pass the RX8 in a straight line ?
M3’s don’t have that pull down the straights normally


Sent from my iPhone using Tapatalk

User avatar
boosted
Club Member
Club Member
Posts: 2776
Joined: Tue Jul 26, 2016 4:32 pm
RX-8: 231
Colour: Aurora Blue Mica
Location: Westbury Wilts
Has thanked: 74 times
Been thanked: 385 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by boosted » Fri Jun 07, 2019 12:05 pm

Im estimating it at 320bhp..
Got a few old dyno graphs...at 315 and 330bhp
Shes on twins at 13.5 psi. Working fully sequential. ( vitually no lag low down power).
Well documented what power to expect on the twins at various boost settings, they were at 16psi when i got it and it was faster but it was creeping up to 18psi and in blow up area...manily due to wastegate at this boost being unable to flow enough gas and getting boost creep.
13.5psi max as just become inefficient above this setting and very hot, and wont last long.
So i came up with 120hp advantage that a sorted 8 puts out 200bhp.

Sent from my SM-N950F using Tapatalk


231 streetported Rx8 renny powered Westfield kit race car.
92 Rx7 fd3s stock twins..est.320bhp. Track car.

User avatar
mrspiller
Club Member
Club Member
Posts: 2458
Joined: Wed Dec 02, 2015 7:04 pm
RX-8: 231
Colour: Copper Red
Location: Hengoed - South Wales
Has thanked: 130 times
Been thanked: 285 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by mrspiller » Fri Jun 07, 2019 12:53 pm

boosted wrote:Im estimating it at 320bhp..
Got a few old dyno graphs...at 315 and 330bhp
Shes on twins at 13.5 psi. Working fully sequential. ( vitually no lag low down power).
Well documented what power to expect on the twins at various boost settings, they were at 16psi when i got it and it was faster but it was creeping up to 18psi and in blow up area...manily due to wastegate at this boost being unable to flow enough gas and getting boost creep.
13.5psi max as just become inefficient above this setting and very hot, and wont last long.
So i came up with 120hp advantage that a sorted 8 puts out 200bhp.

Sent from my SM-N950F using Tapatalk
That’s a fair assumption
As said , yours seems to breeze past an 8 compared to M3
Must be the driver ImageImage


Sent from my iPhone using Tapatalk

User avatar
boosted
Club Member
Club Member
Posts: 2776
Joined: Tue Jul 26, 2016 4:32 pm
RX-8: 231
Colour: Aurora Blue Mica
Location: Westbury Wilts
Has thanked: 74 times
Been thanked: 385 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by boosted » Fri Jun 07, 2019 1:00 pm

The best thing on the FD is the brakes, the 6 pot aps are awesome. Thats where i catch up most people. Im off to Combe on 12th with Javelin....hope its not raining...ill be sat in Shogun all day.

Sent from my SM-N950F using Tapatalk


231 streetported Rx8 renny powered Westfield kit race car.
92 Rx7 fd3s stock twins..est.320bhp. Track car.

User avatar
mrspiller
Club Member
Club Member
Posts: 2458
Joined: Wed Dec 02, 2015 7:04 pm
RX-8: 231
Colour: Copper Red
Location: Hengoed - South Wales
Has thanked: 130 times
Been thanked: 285 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by mrspiller » Fri Jun 07, 2019 1:02 pm

boosted wrote:The best thing on the FD is the brakes, the 6 pot aps are awesome. Im off to Combe on 12th with Javelin....hope its not raining...ill be sat in Shogun all day.

Sent from my SM-N950F using Tapatalk
I’m doing Anglesey on 17th or I’d have joined you and sat in the shogun with you


Sent from my iPhone using Tapatalk

User avatar
boosted
Club Member
Club Member
Posts: 2776
Joined: Tue Jul 26, 2016 4:32 pm
RX-8: 231
Colour: Aurora Blue Mica
Location: Westbury Wilts
Has thanked: 74 times
Been thanked: 385 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by boosted » Fri Jun 07, 2019 1:04 pm

I aint going out in rain...need to fix the colt again..thats great in rain...

Sent from my SM-N950F using Tapatalk

231 streetported Rx8 renny powered Westfield kit race car.
92 Rx7 fd3s stock twins..est.320bhp. Track car.

User avatar
Lemon
Forum Moderator
Forum Moderator
Posts: 1308
Joined: Wed Nov 30, 2016 4:08 pm
RX-8: 231
Colour: Winning Blue
Location: Wiltshire
Has thanked: 29 times
Been thanked: 163 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by Lemon » Fri Jun 07, 2019 2:08 pm

boosted wrote:I aint going out in rain...need to fix the colt again..thats great in rain...

Sent from my SM-N950F using Tapatalk
And, as it turns out, the snow

Sent from my Nokia 6.1 using Tapatalk

Thanks, Stu

thegoose50
Former Member
Former Member
Posts: 26
Joined: Fri Feb 23, 2018 4:41 pm
RX-8: 231
Colour: Titanium Grey
Location: Trowbridge
Has thanked: 0
Been thanked: 14 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by thegoose50 » Fri Jun 07, 2019 3:16 pm

If anyone wants photos of our track session they are up on https://www.circuitphotos.com/f453336405
These users thanked the author thegoose50 for the post (total 2):
GreySilver Beast (Fri Jun 07, 2019 8:14 pm) • bc-49 (Thu Jun 13, 2019 7:24 pm)

User avatar
casey
Committee Member
Committee Member
Posts: 9402
Joined: Sun Jun 27, 2004 7:14 pm
RX-8: 231
Colour: Titanium Grey
Location: Colchester
Has thanked: 971 times
Been thanked: 1158 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by casey » Fri Jun 07, 2019 4:07 pm

Video of the 11.30am track session from my car....................


These users thanked the author casey for the post (total 3):
GreySilver Beast (Fri Jun 07, 2019 8:14 pm) • Reloy (Sat Jun 08, 2019 8:20 am) • bc-49 (Thu Jun 13, 2019 7:24 pm)
Club Secretary
Essex Rotary Full Bridgeport

Seibon Carbon Fibre Bonnet
"Racing Brake" front calipers, Racing Beat (RB) ARB's F&R, RB REVI intake, full RB Stainless Steel Exhaust & Mani, 20mm Eibach spacers, KOYO Ali Rad, Lightened Fly, Tein MonoFlex coilovers & strut brace, Axial short-shifter, BHR Coils & Engine Mounts, Greddy Sump
Federal 595RS-R or Rainsport 3

User avatar
ChrisHolmes
Committee Member
Committee Member
Posts: 17849
Joined: Sun Jan 29, 2006 10:04 pm
RX-8: 231
Colour: Velocity Red
Location: Cheltenham
Has thanked: 4647 times
Been thanked: 1957 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by ChrisHolmes » Fri Jun 07, 2019 8:05 pm

Every time I see a VR car in a video on here it remined me how much fun I had in my previous car. Really looking forward to getting the current one fixed, run in and out on track.
Bridge Ported 231
Light weight Flywheel
Tein MonoSports with EDFC Active
Racing Beat F&R ARBs
Racing Brake 4 Pot Front Calipers
Racing Brake two piece slotted & drilled discs
LED Rear Lights
LED 3rd Brake light with blink effect
MazdaSpeed sills
Safety Devices Full cage
Royal Steering wheel
Short shifter
Mishimoto Catch Tank

User avatar
SeanP
Club Member
Club Member
Posts: 6680
Joined: Sun Oct 10, 2004 1:06 am
RX-8: R3
Colour: Diamond Grey
Location: South Bucks, UK
Has thanked: 46 times
Been thanked: 153 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by SeanP » Sat Jun 08, 2019 2:11 am

What another fanstastic day at JDM...

Though I am still "plagued" by what I thought was "fuel cut" scenarios (even after bringing an extra 10L to top up with before the track sessions)...

After a good long chat with Clive@MRC, I now am convinced it's Temperature management - especially as this was a REAL problem on my second session out (sans RX-8s bar one), from the "get go"... That session was delayed by 20 minutes and I'd left the car idling in the pitlane all that time...

I recently had my gauges fitted for Oil pressure, Oil Temperature, and Coolant Temperature... BUT the one sensor not yet fitted was the Coolant - so was not monitoring that (nor from OBD)... 🙄

Anyhow - on way home monitored via OBD and noticed they are getting very high - and another observation that the engine often cuts at lights... which did occur on the way home - as the temperatures rose to 108C++ at lights...

SO - been doing some investigative work on R3 which appears to have a different control system to S1 for the Fans (5 relays vs 3 and differing combos bring on the two fans at varying speeds?) Could be a duff fan or a duff Relay - BUT there are NO PDCs 048x ever showing. So probably not the latter?

The Left hand Fan is VERY difficult to see if it's spinning or not - blocked by main air intakes... So any help in diagnosing & fixing are sought... May take Clive's advice and fit an override switch to bring them on full on track...

Other lessons learned... DON'T Run engine in Pitlane! Turn off Aircon on track... 😂

Good thing is that I have video where that S2000 was blasting around - he did take me early on, but that's because I was losing power from the outset... BUT still just about managed to keep up - even with the engine clearly cutting during that sessions...

Videos are being prepared for upload...
These users thanked the author SeanP for the post:
GreySilver Beast (Sat Jun 08, 2019 2:21 am)
R3, Diamond Grey = :twisted: HUGE smiles :twisted:
RoSPA & IAM (NO) Advanced Driving Tutor; Safe+Systematic+Smooth+Sparkle=FUN! Hayward rebuild@45K(s)miles, 17.5 MPG.
🏁Green Hell :D, Spa :D, AutoSolos 10+, Donnington, Oulton, Blyton, Prodrive x3, Thruxton, Brands Hatch x3, NorthWeald x5, Bedford SW. (Vids, Pics)🏁;
Never forget (28/08/09): 231, Titanium Grey, Leather.

User avatar
boosted
Club Member
Club Member
Posts: 2776
Joined: Tue Jul 26, 2016 4:32 pm
RX-8: 231
Colour: Aurora Blue Mica
Location: Westbury Wilts
Has thanked: 74 times
Been thanked: 385 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by boosted » Sat Jun 08, 2019 7:57 am

Fans are for cooling when the car is in traffic or stationary....when your on track or driving down a road the high pressure area on the front of the car is want forces the air through the rad.
The 20 min hold up yes the car wouldve got hot but the fans shouldve dealt with this, but as soom as you got on track, there wouldve been a massve amount of air flowing through rad....
I think your problem is something else...
When was the last time the rad system was flushed and fresh coolant?
Check the water pump pulley is not slipping on the belt.

Sent from my SM-N950F using Tapatalk

231 streetported Rx8 renny powered Westfield kit race car.
92 Rx7 fd3s stock twins..est.320bhp. Track car.

User avatar
TheJDMStereotype
Club Member
Club Member
Posts: 166
Joined: Fri Aug 10, 2018 2:50 pm
RX-8: R3
Colour: Sparkling Black
Location: Reigate, Surrey, UK
Has thanked: 120 times
Been thanked: 116 times

Re: JDM Castle Combe 2019 - Saturday 1st June

Post by TheJDMStereotype » Wed Jun 19, 2019 8:34 am

To everyone who asked for pictures,
I have now (attempted) to send all the pictures off, apologies for the delay as there seems to be an issue with our computer email, those who do not have photos I will try and send them on another email.
Thanks for your understanding,
Alex
P.S thanks for a fantastic day everyone :D
These users thanked the author TheJDMStereotype for the post (total 2):
GreySilver Beast (Wed Jun 19, 2019 10:30 pm) • bc-49 (Fri Jun 21, 2019 8:44 am)
2009 Sparkling black R3
- Japspeed sport cat
- Petit Racing exhaust
- Mapped
- EBC discs and pads all round
- K&N filters
- Michelin pilotsport 4s tyres

User avatar
GreySilver Beast
Committee Member
Committee Member
Posts: 53385
Joined: Sun Dec 10, 2006 6:57 pm
Colour: Custom
Location: Around The UK including West Sussex
Has thanked: 9566 times
Been thanked: 2298 times

JDM Castle Combe 2019 - Saturday 1st June

Post by GreySilver Beast » Thu Jun 20, 2019 12:58 pm

You have PM Alex :thumleft: - Events Team
These users thanked the author GreySilver Beast for the post:
TheJDMStereotype (Sat Jun 29, 2019 1:10 pm)
GSB-TDU - Committee - Events Coordinator & Events Team Admin
RX-8OC Club Calendar
R.A.C.E Car Club
NPT Website
GSB III 03/08/13 - Present

Post Reply

Return to “The Vault”