It says in the owners manual book not to "race" the engine. I think having high rpms excessively can hurt your engine. Doesnt it start to bend something when you get above 6500rpms due to shaking. ( yes i know the engine runs smoothly and doesnt vibrate real bad.

 

you have a point about turning..but man the holley is a great set up for turbo...i use to hate mine but now that i decided that im gunna stick with just going str8 im glad its a holley feeding the gas, and maybe you need to tune it aswell.

 

Yeah right!

If you do some research and talk to guys that race them you'll find that these things take 7-8K RPMs all day long with no ill effects, provided the cooling is adequate.

I'll occassionally get the customer who complains that the carb I sent him doesn't seem make any more power than his old one does. I used to go nuts trying to help the customer figure out why by troubleshooting...Asking a bunch of questions about the carb to see if it was set up correctly, etc, wasting hours only to find out the guy shifts at 3500 RPM! Now the first thing I ask is how he drives.
Most of you guys are shifting just when the power band starts!

As far as the RB Holley, non tunability isn't the only thing that makes it a poor choice for a rotary. Because the primary bores are so big, there is a lack of velocity through them at lower RPMs. To compensate they need to be jetted very rich, which screws up the midrange. The lack of velocity also makes atomization suffer at the low end.
The rotary has a very wide power band. Bigmouth Holleys and Webers were engineered for engines with narrow power bands.
You're taking something engineered for an apple and paying someone to make a few changes so it will idle, and putting it on your orange.
Almost any carburetor can be tuned or modified to "work" on a rotary, but no carburetor can bring the powerband of the rotary down to 3-5K RPM.

 

i have a holley carb and get 130 milse to the tank

 

gosh thats sucky gas mileage i get 250miles a tank,,

 

I get over 300..............
BTW, I shift around 3500-4000 during normal driving, and 6K+ for those times I'm in a little more of a hurry.

 

:O geeze tell me your secrets lol, 13b or 12a?

 

i miss my little bridge. 9-10,000rpm all day long. Now that im back to a stock 6port its usually always between 4- 7500rpm.

 

12a with unknown ports, assuming stock, but it has been rebuilt at some point. Stock Nikki carb, no cats, 2.25 SS pipe to a SS muffler. All tuned as best that I can get it.
For added drama, the fuel guage doesn't work after reaching 60-100 miles, just lays on empty.
20-22 MPG around town, recorded 25.5 MPG on a 600+ mile road trip, at 75-80 MPH.

 

sounds good to me, except i just noticed u live in Oklahoma... thats flat land, im in wv anad my car climbs hills every single day.. but we have tons of twisties which makes this car VERY FUN Im guessing since my climbs hills more often it would affect my mileage right?

 

Well, it aint totally flat around here. I live on one of the highest hills in the area.
But, yes, lots of hilly terrain will affect mileage.

 

Forgot the biggest mod, as far as improving fuel mileage. I have a second gen tranny, which has a taller 5th gear.

 

lucky u what are the gas prices out there? its like 2.35 a gallon here.

 

Lol you guys in america should not complain about fuel prices. In australia we are paying USD$3.40 per gallon. and its going up...

and in the UK its about double that :P

I'm not complaining, my thirsty 7 aint never goin dry

 

haha i guess we have it pretty good here

 

Yes we do. Americans tend to live in a bubble where fuel price climbs of a nickle a gallon make headline news. Americans complain about 2 bucks-thirty a gallon when European countries have been paying 2-3 times that for decades.

 

5500 here normally, sometimes I feel like punching it to 7.5, but I don't do that often.

 

4,500 in first, 4,000, in second, 3,500 in third, 3,500 in fourth when im not trying to catch the eye of the law

 

Gears 1st 2500, 2nd 2700, 3rd , 3000- 3500, 4th ,4000( usually for merging on highway) 5th it stays at about 2900-3400rpm constantly.

 

Seriously. Ask people who've driven with me (nevarmore!!). Me engines make the grunties. Plus, I don't like being noisy, and in traffic situations there's really no point to hanging onto a gear all the way up to 3000-3500 if you're barely holding throttle.

I drive uphill in 5th gear at 25-30mph. No problems. And this is with a STOCK intake manifold, no runner alteration craziness like my last car. STOCK porting with the super restrictive exhaust ports and maze of right angles and sharp edges intake ports (so you not only make no power up high but also no power down low or in the middle either!), STOCk carburetor, just no secondary diaphragm spring (does not come into play at low throttle anyway) and fuel pressure diddled for a half decent fuel curve. (I think I'm at 1.5psi?)

The only significancies are the headers, and the recurved distributor.

Oh, and keep that vacuum advance, at least on the leading. Makes a world of difference driveability and fuel economy wise.