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Helpful ReplyHot!The MR2 Australia SW20

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5SGTE
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Re: Eastern Creek 2016/06/05 21:12:13 (permalink)
+1 (1)
Love the first right hander, car sounds awesome.
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Re: Eastern Creek 2016/09/18 11:21:23 (permalink)
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The engine is out again. It idles badly and I found that I have low compression in one cylinder. There are also small aluminium flakes in the oil.
I dropped the engine off to Graeme Wilkins yesterday for him to strip it and identify what went wrong. I hope that it is relatively easy to fix.
Sucks hey?


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
kojab
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Re: Eastern Creek 2016/09/18 16:36:10 (permalink)
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That's not good.  Have you been out racing again?  I know you had a meeting in June.

92' SW20 3SGTE   GEN2 GT Hardtop Holden Ls1 ECU
87' AW11 3SGTE   Delco EFI ECU & 21 psi boost
71' KE25 3TGTE    Delco EFI ECU Standard engine 24 psi boost
78' KE55 L67        Delco EFI ECU

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Re: Eastern Creek 2016/09/18 16:44:07 (permalink)
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kojab
That's not good.  Have you been out racing again?  I know you had a meeting in June.

No. It's been sitting in the garage since June while I have been restoring my RA60 Celica.

Mr Glengineering.
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Re: Eastern Creek 2016/10/29 20:03:51 (permalink)
+2 (2)
UPDATE - The engine issue has been found. It is weak valve springs. The low compression was caused by the valves bouncing and eating into the valve seats. The valves I had were new genuine Toyota valve springs.
If any of you are going to build a high performance 3SGTE, you MUST buy stronger valve springs, or the same thing will happen to you. My combination of oversized valves (1mm) and higher boost, is too much for the standard valve springs to handle.
I have ordered a new set of Supertech valves, a new set of stronger Supertech valve springs, a new set of piston rings and new main and conrod bearings. The beast should be running again soon!
I have also bought a Haltech ECU (E11V2) and an AIM MXL Pista dash to go with it. I'm not going to put them in just yet though will bench test them both and set them up as much as I can before putting them into the car along with my turbo upgrade that I will do sometime next year, funds allowing. I haven't bought the turbo or any of the other physical parts yet, though at least I now have the Haltech and dash!
The car will be ready to rock at MR2WPC in January.

 

 
 

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
Falcon
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Re: Eastern Creek 2016/10/30 07:08:44 (permalink)
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Good to hear that it will be back together and improved again for MR2WPC.
January is getting very close now. Always worth having a close look at this car!
Can you remind me of the cam specs. Manufacturer, lift, duration.
Reason I ask is that it surprises me that brand new Toyota valve springs can't cope.
Are the new Supertech springs duel springs or just stronger?
You never appear to rev it very high so I wonder about the cam ramp areas.
Thanks for keeping us informed.

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Re: Eastern Creek 2016/10/30 07:43:30 (permalink)
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The new springs are just stronger. I'll post a link to them later today. The cams I have are from a 3SGE engine. I'm not sure which generation - probably gen2 as a guess.

Mr Glengineering.
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stuka
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Re: Eastern Creek 2016/11/03 12:22:24 (permalink)
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good to hear you diagnosed the problem Glenn, was this issue evident on exhaust and inlet valves?
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Re: Eastern Creek 2016/11/19 09:05:41 (permalink)
+1 (1)
Inlet. I have the engine back now and will start putting it in this weekend. I'll be busy driving Steve J's red EVO at Bathurst next weekend! Woohoo! #bucketlist

Mr Glengineering.
Please visit my other forums - 
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Nick
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Re: Eastern Creek 2016/12/01 22:08:38 (permalink)
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Steve the toolforce guy?
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Re: Eastern Creek 2016/12/01 22:10:34 (permalink)
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Nick
Steve the toolforce guy?

Yes. Here are some videos from the weekend. I have more coming.
https://www.youtube.com/user/mr2australia/videos

Mr Glengineering.
Please visit my other forums - 
www.celica.org.au
www.classic-ford.org
 
 
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The MR2 Australia SW20 racer 2016/12/19 15:28:29 (permalink)
+1 (1)
Here is a link to the valve springs I used - http://supertechperformance.com.au/s26918-toyota-valve-spring-kits?m=5580&ec=398&em=5646
The part number for the kit is SPRK-2081/MR
 
I'm waiting a new thermostat to arrive and then I'll be starting the engine for the first time since re-fitting it. I also installed new suspension components from these guys - http://wilhelmraceworks.com/suspension-geometry-kit
This should remove my bump steer issues once and for all. The car should be a lot easier to drive fast now.
 
Here are some up to date photos -

 

 

 

 

 

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
Nick
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Re: The MR2 Australia SW20 racer 2016/12/19 18:27:37 (permalink)
+1 (1)
I have also been looking at that kit it does look quite fantastic. However with that drop block? for the rear toe arm, it's just the two bolts one through the hub and the other through the arm? What stops the block from pivoting on those bolts resulting in uncontrolled toe in/ out? Or am I overthinking it haha
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Re: The MR2 Australia SW20 racer 2016/12/19 22:42:21 (permalink)
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There is a steel bush pressed into the hub assembly which the bolt goes through. The original bearing is gone.

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
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Re: The MR2 Australia SW20 racer 2016/12/19 22:43:07 (permalink)
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It's definitely a high quality kit. It all fits perfectly.

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
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