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Helpful ReplyHot!The MR2 Australia SW20

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Re: The MR2 Australia SW20 2019/01/16 13:16:11 (permalink)
+1 (1)
JANUARY 2019 UPDATE
Even though I had anticipated issues caused by radiant heat from the exhaust manifold, turbo and dump pipe and had fabricated lots of heat shields, they weren't enough.
I have driven it twice since the turbo upgrade, and it caught on fire both times. This was due to the top of the dipstick being too close to the dump pipe, which burnt the rubber seal and allowed oil to push out and then burn on the hot stuff. Thankfully there was no damage other than the mess from the fire extinguisher. Trust me - it's hard to get it off!
Another reason why oil pushed out of the dipstick was because of crankcase pressure.
Here is a list of changes that I made to help with heat management - 
  •  New home made custom dipstick with heat shield and retainer spring. I spent a LOT of time making this and ensuring that all of the clearances were good. There wasn't a lot of room to play with.
  •  Replaced braided turbo oil drain hose (that is super close to a manifold runner) with a hard line modified from a FG turbo Ford Falcon.
  •  Installed an additional heat shield to protect the rubber hose at the bottom of the turbo oil drain hard line. This is probably overkill, though I thought that it would be a good idea to make it seeing how it was all apart.
  •  Replace the turbo bag with a home made aluminium shield. This was primarily done to protect things in the engine bay from radiant heat.
  •  Added a heat shield to the wastegate. The wastegate is very close to the dump pipe, and although it is designed to operate in extreme heat, I was worried that heat conducted by the wastegate body from the dump pipe may damage it.
  •  Replaced all of the red fire sleeve with aluminium coated fire sleeve. 
  •  Replaced the oil drain system from the turbo and catch can with an upgraded and simpler design.
  •  Installed a modified cam cover that has two large breather holes - see previous post.
  •  Removed the aluminium cloth sheet that was glued with polyurethane to the block. This had soaked up the leaking oil and contributed to the fire once it started. Although there is value in keeping radiant heat away from the block, I thought that simplicity would be better in this case.
I have entered the CAMS NSW Supersprint series this year, and the first event will be at the Sydney Motorsport Park Gardner circuit in late March. I'm hoping to beat the MR2 lap record there which was set by John Boston. Fingers crossed!
My next upgrade will be to the rear wing. I bought a new wing from Canada, though the deal fell through and I'm still trying to get all of my money back. I've now decided to keep my current wing, though modify it as follows - 
  •  Change to a chassis mount
  •  Change the angle of the whole wing assembly. I think that it is tilting back too much.
  •  Raise the height by 30cms
  •  Add large end plates
I have all of the metal to do it. I just need to find the time to get it done. All of these super hot days don't help to motivate me...







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Mr Glengineering.
Please visit my other forums - 
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My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
Knightrous
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Re: The MR2 Australia SW20 2019/01/16 13:48:30 (permalink)
0
Buy a CO2 fire extinguisher and avoid the heart ache of scrubbing powder and corrosion off your motor post fire.

TrackDub - 89' AW11 3MZFE | SlushDub - 89' AW11 4AGZE | DailyDub - 02' ZZW30 1ZZFE | TurboTaxi - 99' GC8 WRX EJ20
Knightrous
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Re: The MR2 Australia SW20 2019/01/16 13:57:26 (permalink)
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And now that you're all #becauseracecar and installed the fires of hell into your engine bay, might as well take safety serious with a fire suppression system :)
 
http://www.racerindustries.com.au/afawcs0161690/CATID=284/ID=2098/SID=22324332/Zero-2000-4.0ltr-Aluminium-Mechanical-Extinguisher.html

TrackDub - 89' AW11 3MZFE | SlushDub - 89' AW11 4AGZE | DailyDub - 02' ZZW30 1ZZFE | TurboTaxi - 99' GC8 WRX EJ20

TonyMR2
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Re: The MR2 Australia SW20 2019/01/16 16:48:34 (permalink)
+1 (1)
Reason behind Sydney heat wave - Mr2 racecar :)-
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Re: The MR2 Australia SW20 2019/01/16 19:17:42 (permalink)
0
#firesofhell

Mr Glengineering.
Please visit my other forums - 
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www.classic-ford.org
 
 
My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
track_mr2
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Re: The MR2 Australia SW20 2019/01/16 22:06:38 (permalink)
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That aluminum fire sleeve doesn't do very much. Better off wrapping the fire sleeve with exhaust wrap over it. The fire sleeve will probably melt or have holes burnt in it at the next track event. Going cast iron manifold will solve all your heat issues. Also have a check from underneath where your clutch lines are running, you will need of wrap them in exhaust wrap if near the manifold or eventually when the clutch fluid gets a bit old it will boil. Running a duct from under the car to blow air on the whole manifold is helpful too.
5SGTE
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Re: The MR2 Australia SW20 2019/01/17 12:57:39 (permalink)
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Some unfortunate dipstick location isn't it...
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Re: The MR2 Australia SW20 2019/03/03 13:49:19 (permalink)
+2 (2)
I did some practice at Sydney Motorsport Park on Thursday, and I am happy to say that the car went very well. I got a chance to really get a good feel for the car, and was progressively pushing harder through turn 1, which makes a big difference to lap times. I'm happy to say that the car now feels awesome, and I can't really fault anything with it. The handling is great, the brakes are great, and the power is great. It was a hot day (31), so the power was down a bit. I'm looking forward to driving on a cool day.
I did have one slight problem where the engine protection was coming in too early - i.e. it was going into limp mode. A quick tweak with the laptop fixed that. 
My first event in the CAMS NSW Supersprint series is later this month, and I'm really looking forward to it. I'll have a fresh set of soft compound tyres on it, so I'm hoping that I will be able to get some great lap times.
Here's a recent tour of the car, and also with some Eastern Creek in-car video towards the end - 

 
https://www.youtube.com/watch?v=KaWTx_fAG8Q

Mr Glengineering.
Please visit my other forums - 
www.celica.org.au
www.classic-ford.org
 
 
My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
Carmikey
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Re: The MR2 Australia SW20 2019/03/03 14:49:00 (permalink)
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Great video Glenn. Car looks and sound beautiful!

Sent from my SM-J320ZN using Tapatalk

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Re: The MR2 Australia SW20 2019/03/17 12:13:16 (permalink)
+2 (2)
I've now fitted the 18x11 wheels on the rear, and I have been considering what I should do for the front. 

What I currently have is 17x9 with 245x40x17, and I have limited semi slick tyre options. The offset is +45mm and I have 40mm spacers fitted. 
I thought about getting a pair of wheels made for the front that are the exact size needed, and match the rears, which are Forgestar CF5 deep concave.
When I bought the rears, they included a pair of 18x10 +11mm wheels that match, though they weren't the size and offset that I wanted.
After a lot of calculating and pondering, I have decided to use the 18x10 Forgestars on the front with a 265x35x18 tyre. Most of the semi slick manufacturers make this size. I will need to use a 20mm spacer for them to clear the coilovers.
They will stick out by another 26.7mm, and although I have a lot of space under the flares, I will need to cut more material away from the front of the arch so that the tyre will clear it when turning.
There will be a bit of Glengineering required, though it shouldn't be too much of a stuff up.
This will be the first time that I have had a matching set of wheels!
I love the look of the Forgestars, though I'm worried that they'll make my brakes look small. 
That's all for now. I'll provide an update after my 24th of March Supersprint.
I have borrowed a mate's GoPro Hero5, so look forward to seeing some 4K in-car video.
 

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Mr Glengineering.
Please visit my other forums - 
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www.classic-ford.org
 
 
My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
92 Hard Top
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Re: The MR2 Australia SW20 2019/03/19 11:27:32 (permalink)
+1 (1)
Great Video Glenn, I believe you would have the fastest Mr2 track car in the land of Aus. Well done!
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Re: The MR2 Australia SW20 2019/03/25 07:27:24 (permalink)
+1 (1)
I improved my best again at SMSP Gardner circuit yesterday. It was a hot day again (over 30 degrees), so getting a great time just wasn't to be. I got my best time in the first session before it heated up. It was a 1m45.1s. I actually did two laps with that time in a row. I nearly got a low 44s lap (see the video) though the engine overheated which needed me to make an emergency pit stop. I ended up fixing it at the track, and the cause ended up being an electrical problem. It's complicated, though the root cause was a wiring issue that made the front cooling fans run slow, and restrict air flow.
Everything else was great. Grip was good, brakes were good etc.
It was just too bloody hot. I usually hate Winter, though I am looking forward to it meaning that I can improve my lap times significantly.
Here's the video of my "nearly" fast lap.

 
https://www.youtube.com/watch?v=0oicqcnzOpI

Mr Glengineering.
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www.classic-ford.org
 
 
My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
Lumix
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Re: The MR2 Australia SW20 2019/03/25 14:48:47 (permalink)
+1 (1)
Thoroughly enjoyed watching the walk around video. Very informative. Car sounds and looks great. I look forward to seeing your winter lap times. 
 
 
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Re: The MR2 Australia SW20 2019/03/30 20:48:37 (permalink)
+2 (2)





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Mr Glengineering.
Please visit my other forums - 
www.celica.org.au
www.classic-ford.org
 
 
My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
Blade
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Re: The MR2 Australia SW20 2019/03/31 11:56:11 (permalink)
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Nice!
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