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Old 11-28-2003, 02:52   #1 (permalink)
methanol injected clevo
 
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interesting article... "10 sec clevo"

heyas,

i stumbled onto this article, was wondering what people's feedback was?

Probably the most interesting point i read was about "block grouting"

"Next important stage is grouting the block. You need to buy some grout, i found 'Hard Blok' is the best value for money. Clean and flush the block thoroughly. Take out the welch plugs and fill the block up to the bottom of the welch plug holes, preferably tilt the enginge one way a little so the grout goes up the bores a little. To do this you have to do one side at a time, and let dry in between. This process stops bore shudder that cracks the blocks at 6500 revs plus, which is a common problem in a Clevo. It doesn't seem to effect cooling, especially if you have a 3 core radiator."

Anyone care to share their comments?

thanks!

shane
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Old 11-28-2003, 02:59   #2 (permalink)
methanol injected clevo
 
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Re: interesting article... "10 sec clevo"

how about i post the link too

http://www.geocities.com/xtcracing1/10secclevo
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Old 11-28-2003, 03:26   #3 (permalink)
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Re: interesting article... "10 sec clevo"

If you look @ the chassis? Just imagine what any semi stock/shitter 351 would do in a Mk 1 Escort. Mk 1 Escort would weigh in around 900kgs.

10sec clevo bah! In a falcon it'd be lucky to do a 13.

http://www.geocities.com/xtcracing1/...W_n_Escort.jpg <---Link to what the 351 is in. It's in the Escort not the XW.

Brenden
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Old 11-28-2003, 03:32   #4 (permalink)
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Re: interesting article... "10 sec clevo"

block grouting is a wank in a proper street motor. I can't think of any reason I would bother unless you wanted to run 8000 rpm in traffic light drags to and from work every day.
I have never heard of block shudder .. not saying it doesn't exist but if it was as common as it is supposed to be I am sure I would have heard about it by now.
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Old 11-28-2003, 03:37   #5 (permalink)
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Re: interesting article... "10 sec clevo"

xacoupe is right, it isn't neccasary in anything but a 600hp plus race motor.

You can also use resin, and yes it does help in race use when the engine is constantly between 5000rpm and 8000rpm.

Rick.
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Old 11-28-2003, 03:43   #6 (permalink)
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Re: interesting article... "10 sec clevo"

hehe was gonna say - that engine sounded pretty similar with mine and i'd be stoked if i cracked a low 13 lol
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Old 11-28-2003, 05:43   #7 (permalink)
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Re: interesting article... "10 sec clevo"

Not recomended for a Street Engine, causes over heating problems.
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Old 11-28-2003, 09:03   #8 (permalink)
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Re: interesting article... "10 sec clevo"

They never used it for Australian Touring cars either, Dick Johnson's XE I remember used to rev 7500 and stay at those revs.

Apparantly Cleveland's have one of the strongest bottom ends around.

Long live the mighty Cleveland!
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Old 11-28-2003, 13:50   #9 (permalink)
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Re: interesting article... "10 sec clevo"

My Bros motor has been grouted.
No problem at all with the cooling , but he does run a custom 3 core radiator.

The only downside to this process is the additional weight over standard block with no grout.

You are all however quite right about it being useless in normal street application. There is no benefit in doing this to a 6000 - 6500 RPM street driven motor.

The grout was designed to stabilise the bores at extreme REVS and HORSEPOWER. My Bros engine runs a legitimate 270 - 280 rear wheel kilowatts and has HEAPS of torque. Remember that Clevos aren't exactly very thick around the bores , so this process can help to retain structural integrity if you have an extreme application in mind.

The grout is designed to keep the bottom part of the bores rigid. ( The area where the piston never fills). It is this " hollow" area where the problems are supposedly at their greatest in extreme applications.

But then again , if DJ never used it, who knows !!!!!!!
Does anyone know if his Greens Tuf used a standard Clevo Block or was it a NASACAR or Ford Motorsport Block ?????? This may answer that question.
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Old 11-28-2003, 13:54   #10 (permalink)
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Re: interesting article... "10 sec clevo"

Quote:
Originally Posted by smciner1
Not recomended for a Street Engine, causes over heating problems.
I doubt whether it would cause overheating problems, you only fill a small portion of the lower part of the block.
All the heat is generated up top.

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