Iwantagofast

iTrader: (9)

Call all you rotary gods! I'm not going to be able to make it to the track before winter hope you guys can show me some light at the end of the tunnel since I won't be seeing it personally this year.

"Guessing" and from personal experience what would my 1/4 mile and Bhp be with the following mods:
-stripped nikki
-no emissions
-no a/c
-rotary-shack header with no cat and magna-flow turbo muffler
-Intake coolant plugged
-lightweight flywheel (16 lbs)
-Exedy Stage 1 clutch

Would like to advance my timing, any advice?

Thanks guys for all the help and advice!!

Kentetsu

A stripped Nikki won't get you any more hp. You'll want a Sterling like I'm running.

In fact, the only thing in your list that will actually increase hp is the header/exhaust. But if you get the free flowing exhaust on there, throw on a Sterling carb, fuel pump and regulator, I would guess you'd be about 150 horses.

I've got the Sterling, with a Racing Beat exhaust, and that's really about the only horsepower type upgrades I've got. But the results are very nice. Check out my videos if you haven't, I've got a lot of in-car stuff so you can kind of compare how my car accelerates against how yours does right now.

Happy modding.



.

bad 83

iTrader: (3)

Try more like 135. Adding a header and light weight flywheel isn't going to net a gain a 45HP. Best advice is to get it dynoed.

diabolical1

iTrader: (3)

20 to 25% increase, maybe.

however, you should really measure this stuff. there's no telling where you started before the changes you mentioned (unless what you're doing is trying to see where you'll be IF YOU GET the things you mentioned). even if you just get a friend with a stopwatch and go to a secluded place where you can measure a quarter mile and run it a few times, then take an average.

all the educated guesses (on actual numbers) in the world don't mean crap if they're wrong and no one knows your actual starting point, so they are likely to be.

j9fd3s

iTrader: (3)

3rd that, it'll dyno between 120-125 at the wheels...

Iwantagofast

iTrader: (9)

Unless Sterling has a poor married college student discount it will be next year. Just dropped a large sum to replace all suspention, steering, and clutch. "Sure honey I stayed within the $500 limit." I also believe ifollowed your Carter fuel pump thread. It runs like a beast at 3.7 psi. Normal?

t_g_farrell

iTrader: (1)

Bad 83 pegged it. Without a better intake solution your limited by the
nikki. You be doing good to see 135 Bhp and 120 Whp. I'm assuming you
have a decently running engine with farily good compression all the way around.

My signature lists my mods and I made 134 Whp on the dyno.

Correction: that dyno number was with my old RE exhaust setup,
I expect the RB one flows a bit better but only the dyno can say for sure.

Iwantagofast

iTrader: (9)

Does pineapple still sell those side alternator brackets? I couldn't find it last time I was on the site. Do you like your RB Dellorto carb and intake setup? I have the option to buy a RB holley intake but am not sure about the holley. I guess it can't be any worse then my current carb and for $75 it's a steal.

diabolical1

iTrader: (3)

be very careful with the Holley. make sure you confirm what it is before getting it. i know you mentioned budget, but you can easily spend a lot more than you bargain for and still end up unhappy, abandoning the project or both. RB modified their Holleys for use with rotaries and if that's an unmodified Holley you are in for a long, bumpy road to a good tune. i can say this from experience.

Iwantagofast

iTrader: (9)

Thanks, what wouldbe your preference in Stockport? Something that is possibly adjustable when I port (mild) my engine?

Iwantagofast

iTrader: (9)

So something like this would not be the best option?
http://boise.craigslist.org/pts/1361221854.html

diabolical1

iTrader: (3)

i like Webers or Weber-styled carbies (Dell'Orto, Mikuni, etc.). those would be my first choice simply because they're fairly easy to change and rebuild. at least, they seem easier than the Holley for me. however, let me just go back a bit and make sure you understand what i said (i'm not being facetious) ...

getting a Holley is fine. i actually like them a great deal. i just want to impress upon you that it may be very hard to tune if you don't get the right one - which for a stock 12A, i believe is/was the 465.

PercentSevenC

I second the Weber-style carb. On my supercharged setup, Holleys and Edelbrocks had major issues with turning and stopping hard.

Iwantagofast

iTrader: (9)

Thanks for all the advice guys! So what would you reccommend in the weber field? I understand right now I don't need much, however, In the future I would like to mod/jet the carb for higher performance. Is that possible if I were to choose one around 465-600?

Portland82GSL

iTrader: (2)

Rotaryshack has a 45 OER sidedraft which is supposed to be good. I have a Dellorto 48DHLA sidedraft which has treated my beautifully.

80's old school

iTrader: (7)

I agree with the other guys estimate on HP.... you were asking about 1/4 mile performance.... my guestimate is 16.XX quarter mile...

orion84gsl

iTrader: (5)

www.sterlingmetalworks.com

This is a direct swap for the stock Nikki. He also gives great customer support and his craftsmanship and attention to detail is second to none in the carb business. Price is comparable to a new RB Holley. Easy to tune, and the boost in performance is wonderful. Also retains very good driveability and fuel mileage (if your easy on the pedal). I love mine, and have since I got it.

Keeble

iTrader: (3)

i think he'll be in the 15's my car had dual exhaust non-merged on a stripped nikki and hit a 16.3 at 5500ft elevation

Kentetsu

I always proof read my posts before sending, unless the phone rings or something distracts me. lol. Meant to type 130, not 150. Damned distractions!

t_g_farrell

iTrader: (1)

You can't get the side mount bracket from pineapple anymore. Atkins has
one thats very well made but its not real cheap either.

I love my Dell. If you get a Dell or a weber make sure its a 48, especially if
you intend to port later on. Then its just some jet changes and maybe a
slightly larger venturi to tune it to the port. RB sells a weber setup as does
Mazdatrix. You can find good deals in the classified section here on the
forum a lot of times.

Make sure the holley was a RB prepped holley and is the 465 version or
else walk away. If your a carb newby I would suggest getting something
from a vendor that will pretty much work out of the box for you or you will
have a steep learning curve to deal with while tuning it to run right,
whatever carb you get.

PercentSevenC

Get a 48mm carb. That gives you room for upgrades in the future. I'd go with a 48 IDA, or an OER 47 if you're planning on going turbo in the future.