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Tuning 998


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#1 aaron876

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Posted 08 March 2010 - 05:47 PM

I have a 998 atm with a stage one kit, i would like to tune it as it is a really good reliable engine, however i dont wana spend money if im not going to get

decent performance from it.

I would like to know what i can do to it and what sort off performance in HP i would achieve,

I have 200 pounds maybe a little bit more, or would it be better spending the money on a 1275. i want the same sort of performance as a 1996 Cooper.

if anyone can list what i can get etc

Would help Loads

Thanks aaron

#2 luiji89

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Posted 08 March 2010 - 05:52 PM

rolling road session?

#3 lrostoke

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Posted 08 March 2010 - 05:58 PM

For £200 I doubt you are going to get same performance as a 1996 Cooper which are think are about 63 bhp standard.

Somebodies already listed his spec today which gave him 66bhp it involves rebore to 80 thou, new head gas flowed and a new cam, along with a new dizzy.

Cylinder head and camshaft are really next stage you are looking at.

Various options

12g295 head pretty rare these days and seem to fetch upwards of £90 in who knows what condition.
Camshafts new are going be over £150 with followers and new oil pump.

12g940 head again some machine work involved

#4 aaron876

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Posted 08 March 2010 - 06:03 PM

For £200 I doubt you are going to get same performance as a 1996 Cooper which are think are about 63 bhp standard.

Somebodies already listed his spec today which gave him 66bhp it involves rebore to 80 thou, new head gas flowed and a new cam, along with a new dizzy.

Cylinder head and camshaft are really next stage you are looking at.

Various options

12g295 head pretty rare these days and seem to fetch upwards of £90 in who knows what condition.
Camshafts new are going be over £150 with followers and new oil pump.

12g940 head again some machine work involved


Well maybe not to the standered off a cooper but over 60ish horse power, i may be able to get 300 if that would help at all, how much hp would you think mine had atm, cant be alot, its pretty fast compared to my mates 998. id like it to have good pull away, not top speed etc

Thanks Aaron

#5 aaron876

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Posted 08 March 2010 - 06:04 PM

[quote name='lrostoke' date='Mar 8 2010, 05:58 PM' post='1756963']
For £200 I doubt you are going to get same performance as a 1996 Cooper which are think are about 63 bhp standard.


Well maybe not to the standered off a cooper but over 60ish horse power, i may be able to get 300 if that would help at all, how much hp would you think mine had atm, cant be alot, its pretty fast compared to my mates 998. id like it to have good pull away, not top speed etc

Thanks Aaron

#6 aaron876

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Posted 08 March 2010 - 06:09 PM

rolling road session?



Would it make much Difference? In terms of noticeable horse power

Aaron

#7 lrostoke

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Posted 08 March 2010 - 06:21 PM

If its as quick as you say then I doubt a rolling road will make a massive if any difference.

If all your after is quick get away and not fussed about top speed, then find out what diff its running.

Mines running a 2.95:1 which is great for cruising and motorways but won't be best for fast get aways.

#8 aaron876

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Posted 08 March 2010 - 06:58 PM

If its as quick as you say then I doubt a rolling road will make a massive if any difference.

If all your after is quick get away and not fussed about top speed, then find out what diff its running.

Mines running a 2.95:1 which is great for cruising and motorways but won't be best for fast get aways.


Apperently it revs the ballox of them when your on motorways etc, when you change the diff :S

But not sure, would a cam make much difference?

Thanks Aaron

#9 Pauly

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Posted 08 March 2010 - 07:56 PM

Head work is the next step, its the most limiting factor of the a series, then a cam should follow on.

#10 01smartc

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Posted 08 March 2010 - 09:44 PM

As above, head then cam.

Couple of prices to let you know

Stage 3 Head = £300 + VAT

Fast Road Cam = £70 + VAT (worth changing a few other bit, followers, oil pump, duplex)

Head alone will take you to around 50bhp (assuming rest of engine is sound and its set up correctly) the cam will take you to around 60bhp maybe a little more if tuned well

Chris @ Smart Performance

#11 aaron876

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Posted 08 March 2010 - 11:29 PM

As above, head then cam.

Couple of prices to let you know

Stage 3 Head = £300 + VAT

Fast Road Cam = £70 + VAT (worth changing a few other bit, followers, oil pump, duplex)

Head alone will take you to around 50bhp (assuming rest of engine is sound and its set up correctly) the cam will take you to around 60bhp maybe a little more if tuned well

Chris @ Smart Performance



Thanks mate

Thats what i was looking for. so do you reckon it would be worth doing the 998 or holding out for a 1275,
and also could yu get a head built cheaper as ive got a 1275 head that needs re building

thanks aaron




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