13b + carb + nitrous?

[Carolgees]

Hi all,

I\'ve done a search but I couldn\'t find anyone who has used nitrous on an n/a 13b in this country??

Does anyone have any thoughts on the pros and cons of an n/a FC running:
an extend port (\'streetport\') 13b, a carb and a shot of nitrous?
If anyone has any info on the specifics of what else would be needed (i.e, rotor tips, etc.) please comment


I\'m having some crazy thoughts about a circa 10k-rpm, 100+ shot wet nitrous injected n/a FC.

I know turbo might work out cheaper (??) but the idea of this is stripped-out track car (if it will pass noise regs!?)

[Carl]

100 shot of nitrous will last hardly any time at all.
Possible around 30 seconds for 10lb bottle,so if used for say 5 seconds at a time then it won\'t last too long.
It can be done but you will need to reduce the revs when that you go too when using it,and use a wet kit with a bit more fuel than you would put in for a piston engine.
Engine needs to be built well for this type of thing with uprated seals for best result and good compession.
Any engine mod that makes more power reduces the life of the engine.
10,000 rpm will need balanced rotating assembly and possibly lighter rotors too.
Regards
Carl

[Carolgees]

Thanks for that Carl.

To be honest I just plucked "10,000" rpm and "100" shot of nitrous out of the air.

It makes sense that\'s how quickly the nitrous would be used up. It also makes sense as to why it\'s (n20) is popular with drag cars (Puerto Rico, Australasia, etc) rather than street cars.

What would you recommend for a good comprimise between engine longevity and power?

starting with 90k-odd miles \'89 EGi (Is that a 6-port?)
Racing Beat \'street\' exhaust - i.e, manifold leading into one silencer than back out to two rear silencers

I was thinking of:
extend port
48 dellorto or similar
lightened flywheel

??

I know this is all a bit \'pie in the sky\' but hey, it\'s the weekend :Party :burnout

[Carl]

If you just did the racing beat exhaust,and carb conversion to a Dellorto then you could get around 180hp at the flywheel.
To port the engine would mean a complete strip down and rebuild at the same time,with a bit of porting you could get around 200hp flywheel.
As for rebuilding,you could put in high compression rotors if you don\'t already have them, (9.7 to 1) as they are lighter and enable a bit more revs along with the lightweight flywheel.
You should be able to rev to 8500rpm with that combo and the right apex seals.
Regards
Carl

[88GT-R]

Keep it fuel injected = efficient control and adaptability. You will save so much time and effort setting up for part throttle and transition.

Cheers,
John

[oldone]

Sell that FC and buy a proper car i.e 1st Gen Rx7 or an Rx2\\3.............a proper Old Schooler with Carbs and \'huge\' ports :god

[Carolgees]

ha ha! Ok, you find me one and I\'ll buy it!

I like FC\'s though - one of my favourite cars of all time :Thumbs-up

What do you guys think about this?

http://www.youtube.com/watch?v=4Zh8gqI-L_0

[oldone]

Too noisey..........:guinness :Snoring

[t2rew]

if its too loud you must be too old  dont you know that the least restriction in the exhaust of a n/a rotary is by far the best way to extract the most horse power :rolleyes: :Giggle

[oldone]

:spank :Laugh

[Carl]

:spank :Laugh

Yeah,come on Jason,everyone knows that i am the only one who can run an N/A car totally unsilenced..............................cos I am the only one who can take all of the stick for doin it!
LOL
Carl

[chrisJDM]

hey carolgees sorry for being off the topic but noticed you are from bath.  I never see any rotaries around bath apart from laytons old FD which is now sold.  I work in bath so am always out and about round bath, never take the FD into work thou so you wont have seen me about

[Carl]

hey carolgees sorry for being off the topic but noticed you are from bath.  I never see any rotaries around bath apart from laytons old FD which is now sold.  I work in bath so am always out and about round bath, never take the FD into work thou so you wont have seen me about

You people must be so clean,the number of times you are in the Bath!
:2Rolleyes
Regards
Carl

[chrisJDM]

haha i am in the bath everyday, most of the day, so very very clean :Thumbs-up some people even live in the bath!

[mpk490p]

Yeah,come on Jason,everyone knows that i am the only one who can run an N/A car totally unsilenced..............................cos I am the only one who can take all of the stick for doin it!
LOL
Carl

but we love you for it Carl:Thumbsup!
ive just had a new back box put on mine, very little silencing and i use it with the baffle removed, no where near as loud as yours but i have found the car runs a lot better in the lower revs and top end, also it sounds great!

Mark