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Affordable oversize valves and titanium retainers


e30isking

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These be the ones popping up all over faceache. Designed to be used with standard valve seats aparently. Erm doesnt that completely defeat the object of bigger valves? If you aint got a bigger hole you dont need a bigger plug, and you aint getting any more flow. You are infact loosing power trying to get the air past a bigger valve

Edited by MeanBean49
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8 hours ago, MeanBean49 said:

These be the ones popping up all over faceache. Designed to be used with standard valve seats aparently. Erm doesnt that completely defeat the object of bigger valves? If you aint got a bigger hole you dont need a bigger plug, and you aint getting any more flow. You are infact loosing power trying to get the air past a bigger valve

I think You've miss understood the speil. They are only 1mm and 1.5mm oversize so yo can cut the standard valve seats to size rather than fitting bigger seat inserts. Not that there's room on a oil cooled engine but you might on others.

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31 minutes ago, dupersunc said:

I think You've miss understood the speil. They are only 1mm and 1.5mm oversize so yo can cut the standard valve seats to size rather than fitting bigger seat inserts. Not that there's room on a oil cooled engine but you might on others.

Just playing devils advocate mate, its pretty misleading to say can be used with standard valve seats, how many people are going to buy them thinking they are a simple upgrade.

Ive got 1mm oversize valves in my head, there aint a lot of room left

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Hi,


These are made in China, along some of the worlds best and worst products. Quality control is key - every valve gets measured, material specification, etc...

Regarding stock seats - they aren't 'maxed out' from stock so you can put bigger valves with little work and get a flow improvement from an increase in valve curtain area. On top of this, some throat work and even port work will be beneficial.

There is a strong correlation between valve sizes and maximum horsepower, hence this products. Current 1000cc are coming out with 33mm valves. Valve sizes (and bore sizes) have been steadily increasing over the years.

Hopefully some of you can try them and put them to the test. Let's see if we can work out something to become a trader here.


 

 

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