Performance Suggestions for 3.0i Roadster?

[digitaloverload]

Hi all,

Can anyone tell me ways to improve the already blistering performance of the 3.0 Z4? i would rather not spend 7k on a supercharger and want to know what additional gains can be achieved for moderately little cost (under 1k per mod)?

I have got a Santa-pod drag race lined up with a tuned 350z and want to make sure my car obliterates it!

Cheers in advance!!!!

AC

 

[Memo]

I am not doing to much drag racing since it is not the strongest points of our cars. However, I was faster than a G35 coupe with auto tranny. (Mine is a 3.0i with manual). So When it comes to 350z it has the weight advantage of the G35 and if it is tuned I do not think you have much chances against it.
unfortunately there are not many cheap aftermaket parts for our M54 engine. Please let me know you find anything efficient.

The cheapest mod for drag racing that I can think of is to get a 50 shot nitro.

 

[digitaloverload]

Cheers, Thats what i thought the case would be, i just needed confirmation.

Oh well, its still an awesome car and even if the 350z is quicker its uglu as **** compaired to the sleek curves of the Z4.



Thanks again.

 

[Memo]

Let us know the out come. I know couple 3.30's that have tried NOS and they were pretty happy about it. Do not try more than a 75hp shot though you may risk the internals...

 

[561design]

Get the stickiest compound tires you can. Tighten up the suspension so that you get direct transfer of power.

 

[iranmeba]

get a new diff. I'd recommend a 3.42 or a 3.64. They'll increase the torque going to the wheels by 12 and 18 percent respectively. If you do get a new diff I'd also recommend getting an engine tune (i have the shark injector and love it) in order to optimize the torque curve and get the most out of the diff. Not to mention the higher redline will be rather nice.

 

[cj10jeeper]

If it's a temporary need to be quick 0-60 then you could put smaller wheels on. Has exactly the same effect as changing the rear diff. Plenty on Ebay as people upgrade to better.

One reason you often see the smaller engined models on smaller rims, thus avoiding manufacturers having multiple diffs in axles.

 

[Sephanite]

deflate his tyres

 

[DannyBoy]

If it's a temporary need to be quick 0-60 then you could put smaller wheels on. Has exactly the same effect as changing the rear diff. Plenty on Ebay as people upgrade to better.

One reason you often see the smaller engined models on smaller rims, thus avoiding manufacturers having multiple diffs in axles.

Problem is, will they fit over the 3.0 brakes as anything under 17 inches will struggle to!

 

[cj10jeeper]

If it's a temporary need to be quick 0-60 then you could put smaller wheels on. Has exactly the same effect as changing the rear diff. Plenty on Ebay as people upgrade to better.

One reason you often see the smaller engined models on smaller rims, thus avoiding manufacturers having multiple diffs in axles.

Problem is, will they fit over the 3.0 brakes as anything under 17 inches will struggle to!

Dannyboy the comment was made somewhat tongue in cheek, but if serious I'm sure you could drop from the 18" that most run to 17" or 16" on pre facelift which has smaller rotors and then put lower profile tyres on them. It would look ludicrous and an appalling ride but in theory doable...

 

[rob davey]

If it's a temporary need to be quick 0-60 then you could put smaller wheels on. Has exactly the same effect as changing the rear diff. Plenty on Ebay as people upgrade to better.

One reason you often see the smaller engined models on smaller rims, thus avoiding manufacturers having multiple diffs in axles.

Problem is, will they fit over the 3.0 brakes as anything under 17 inches will struggle to!

Dannyboy the comment was made somewhat tongue in cheek, but if serious I'm sure you could drop from the 18" that most run to 17" or 16" on pre facelift which has smaller rotors and then put lower profile tyres on them. It would look ludicrous and an appalling ride but in theory doable...

My mate did this with a fiat uno turbo when we were kids, it topped out at about 90mph but got there darn quickly!