Well one thing I love about this motor is how reliable it is, and I do not want to do
a motor swap. As of now my car has it's good days where there is like a sudden pocket
of power..but it doesn't have many mods yet either..with 93,000 miles would using the
zex 55 shot be wise..or would I be better off buying the JWT ECU and Cams? And I
remember seeing that JWT has SR20DE cams..but are there any for the GA16DE yet?If so
how much are they goin for?
Thanx again,
Greyson Crowe
94 Sentra XE
>
> Porting the head will work with stock cams, just not
> as well as with bigger cams. The GA16 suffers from
> poor head flow especialy on the exhaust side.
>
> I predict gains of 5-8 hp from headwork on this motor,
> posibly more. Your money is probably better spent
> doing all of the bolt on's including cams first.
>
> The 95-99 head is better than the 91-94 head, probably
> worth about 5 more hp. You can mill the head up to
> 1mm with no problems but the main problem by milling
> more will be retarded cam timing, not warping. 1 mm
> will retard the cams by about 4 degrees which will
> cost bottom end power. I mm will rasie the
> compression by almost a point. Like Chris said,
> pistons are a better way to raise the compression than
> milling to aviod this retarding problem. It is hard
> to design adjustable cam gears for this motor beacue
> of the VTC.
>
> The big throttle body is not benifical until after the
> point where cams are installed.
>
> Mike
> --- [EMAIL PROTECTED] wrote:
> > porting the head wil not give you much unless you
> > regrind your cams or buy
> > the JWT cams. The cams are meant to flow what the
> > head is providing now. If
> > you port it, the cams will not be able to keep up
> > and you will lose power.
> > Porting and polishing with cams is the only way to
> > go. JWT may have a head
> > package in the works, you hae to call them to find
> > out when. If you are
> > serious about power, rebuild the bottom end of the
> > motor with high
> > compression pistons instead of shaving the head.
> > Although the shaving head
> > may increase the compression, it may hurt the head
> > in the long run with hot
> > spots and may warp. You have to watch this head.
> > Also, use the 95 SE20DE
> > TB. The TPS plugs in and no problems. You can use
> > this on 91-93 sentras
> > with 1.6.
> > Chris 92 classic
>
>
> __________________________________________________
> Do You Yahoo!?
> Yahoo! Auctions - Buy the things you want at great prices.
> http://auctions.yahoo.com/
>
>
> +----------------------------------------------------------------------+
> List archives ==> http://www.escribe.com/automotive/sml
> Have a question? Try the archives first.
-------------------------------------------------------------
Sign up for ICQmail at http://www.icq.com/icqmail/signup.html
+----------------------------------------------------------------------+
List archives ==> http://www.escribe.com/automotive/sml
Have a question? Try the archives first.
