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Best Modifications To Do To A 998Cc Engine


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#1 Jacks

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Posted 19 December 2013 - 07:03 PM

What are the best mods that look good for example rocker covers and performance mods like cams to do to a fully standard 998cc engine?

I all ready have an oil cooler and twin hs2 carbs

#2 TehMarchant

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Posted 19 December 2013 - 07:05 PM

stage 1 kit buddy.



#3 alex-95

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Posted 19 December 2013 - 07:22 PM

Like above a stage one kit is pretty good, Dsn do some very nice engine bay bit's, not cheap though ;D



#4 miniman24

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Posted 19 December 2013 - 07:51 PM

If you are doing a cam you may as well change the head. The standard 998 head is very inefficiently designed - the 12g295 head, skimmed to the correct compression ratio, is what you want - this will be the biggest improvement in power.



#5 jaydee

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Posted 19 December 2013 - 09:01 PM

Paint it red.

 

Seriuosly, you need to make it breathe, a good 295 is a starting point, then you need to look at valve and angles..



#6 ACDodd

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Posted 19 December 2013 - 09:10 PM

http://www.theminifo...t-out-of-a-998/

 

AC



#7 daenesh

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Posted 22 December 2013 - 10:15 AM

i put on a stage 1 kit and then LCB's and changed the cam to a 1098 cam which has slightly higher lift.. and also focus on the valves.. 



#8 deanymini

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Posted 22 December 2013 - 12:04 PM

Replace it with a 1275? Why have a highly strung, more expensive 998 that costs more to build and will have approximately the same power?

#9 Gr4h4m

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Posted 22 December 2013 - 12:57 PM

I'm not sure what makes an engine highly strung? Most reliability comes down to how the engine has been built, if it's been maintained and how the owner drives it.

#10 Twisty

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Posted 22 December 2013 - 01:56 PM

As above mate plus some good tyres will help no point going fast if it wont stick to the road.

 

I would aslo say after the stage 1 solid mount the front subby, heavy duty tie bars, new dampers and rubber cones.

 

Get the handling sorted and it will be really good fun to drive.



#11 deanymini

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Posted 23 December 2013 - 08:25 AM

In my mind, highly strung means running more stresses through a component than it was designed to take. You can't expect it to give you the same levels of reliability.

#12 Gr4h4m

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Posted 23 December 2013 - 10:25 PM

To me highly strung is an auto grass engine that is seeing 10,000 rpm. I can't see some warm mods doing anything to an engine that is in good health.
Most issues I have seen from club members over the years are from badly put together, not setup correctly or abused engines

My old 998 was putting out twice it's power and that was built in 1969..,

I like the idea of a hot small bore.

#13 Cooperman

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Posted 23 December 2013 - 11:13 PM

We seem to get a lot of 'how do I modify my engine' questions without the definition of what it will be used for.

 

When deciding on an engine specification it is first necessary to decide what the car is to be used for.

 

For example, if a car is to be used for driving, say, 10 miles to & from work each day in traffic, the necessary engine will be very different from a weekend screamer track car where the engine can be re-built often to cope with the high wear rate a high-revving engine will experience.

 

You can't just bolt a few 'goodies' onto an engine and expect a satisfactory result. It is always an engineering solution that is needed.



#14 Jacks

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Posted 24 December 2013 - 10:25 PM

Fast road

#15 Cooperman

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Posted 24 December 2013 - 10:26 PM

With a 998 Mini that means 'not quite such a slow road Mini' ;D.






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