Adjusting Boost

[Simon Quested]

Hi Bibie and all

> Here goes a silly question which maybe peanuts to all of you out there.
> Anyway...I've heard that it is possible to make the "kick in the pants" come
> sooner. What I want is the boost to happen earlier in the lower RPM. 

I suffer from the same problem The engine I have at the moment has a 
compression ratio of 7 to 1 and a large turbo (for a 2 litre), it is 
slow off the line but once it hits 3500 and 15 psi it sits you back 
into the seat......I have tried a sorts of things to remady this (but 
not NOS) running a boost solenoid helps but not as much as I wanted 
so I am no building a twin turbo engine running at 10 psi but with a 
compression ratio of 7.7 to 1.......it seems to me that if you don't 
want to rebuild your engine NOS is the only way to go, for a small 
investment the returns are great !

If you want more power and the engine can handel it you can use the 
cold start injector as a water injector this then allows you to run 
more boost without worring about detonation..... 

The good things about nos is that it takes away all the bad 
points of a turbo, 1) eliminates lag 2) it acts as an 
excellent inter-cooler, due to the fact that it is an expanding gas 
it sucks heat from its suroundings.....

The reason I'm not going with nos yet is because I want to get the 
best street setup for my engine then add the nos ;-)

A friend of mine had a 1000cc motobike with turbo and nos !!! (crazy 
man) the nos was activated by a switch at the throttle stop. The nos 
ran for 2 - 3 secs to get ove boost lag........(the guy also owned a 
motobike with a 351 V8 in it.......... and micracluriously he is 
still alive ;-)

> I don't
> know if it means the fuel boost or the turbo. Please help...I'm a lady and
> the guys just won't show me how to do it. I ain't worry of gettin' my hands
> dirty...

All the fuel system in any car does is control the ratio of fuel to 
air most cars are tuned to 14.7 to 1 this is the ideal for economy 
the best for power is 12 to 1 you can do this by either getting the 
existing ecu tweeked (if possible) or putting in an aftermarket ecu.
  
> BTW...I'm driving a Nissan 200SX - Turbo version(Japan Import 1990).

I'm running a jap turbo at the moment ........I don't care where it's 
from as long as I go fast ;-) 

> Bibie

Good to see a woman interested in performance !

Cheers

Simon 
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  Simon Quested (E-mail questeds at lincoln.ac.nz)
  Computer Technician, Silicon Graphics & Windows NT Support
  Centre for Computing and Biometrics
  LINCOLN UNIVERSITY OF NEW ZEALAND
  Phone (64)(03) 3252811 Ext. 8087
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http://www.lincoln.ac.nz/ccb/techs/simon/default.htm
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f u cn rd ths, u cn gt a gd jb n cmptr prgmmng
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