Rotary Car Club - View Single Post - "gilmer"new kiwi friend sent me gilmer setup!

Jeff20B · 04-19-2008, 08:40 PM

The gilmer is probably as loud as an atkins supecharger with the 5 or 6 pk belt on their aluminum pulley kits. It can be deafening if the SC is new and you lean your ear next to it, but with the hood closed and normal driving, it just sounds like a little something. Probably just like a gilmer.

I like RB mufflers. As far as I'm concerned, it's RB or Borla and not much else. Maybe Rotary Engineering glasspacks, but I'm starting to tire of the noise levels, even it it's mainly bass-throaty like on my REPU. I'd prefer the sound of an RB dual pipe 'streetport' full exhaust system because it's quiet at idle, just fine at cruize and you can hear it when you get on it. Perfect.

Yeah, the 30 pounder can be easy to drive at times, but once you go through the learning curve with a light steel, you will love it and never want to drive a heavy flywheel again. Even the mild '83-'85 12A and GSL-SE flywheels feel heavy comparatively. I will say this though, my bro's RX-4 had a GSL-SE flywheel and was perfect while NA, but while it had the 5" supercharger, it felt like the old heavy stock 30 pound flywheel. Once the SC came off, it felt fine again. I wouldn't want a light steel for that car, unless it had an SC, because the vehicle weight is kinda highish and the rear diff gearing is very high at 3.636. My Cosmo is going to be the same way - similar vehicle weight, same tall diff gearing, but bigger (taller) 14" tires. I have a GSL-SE flywheel waiting to go in.

My REPU currently has a 30 pound stock flywheel which really sucks to drive, partially because the rear gearing is a little lower, and when there is no weight in the bed, the flywheel is just too heavy. Plus it has other problems like a leaky slave cylinder, grabby clutch that's worn out and has bad springs etc. It's a chore to drive. I have a new light steel flywheel, stock disc and SS pressure plate which should match the heavy duty stock pressure plate in pedal effort. Hopefully the stock disc won't be so abrupt and should allow towing and the reduced weight of the light steel will make a supercharger install a reality. The extra weight of the SC will add back what the light steel flywheel takes away and should allow easy shifts, like you said, and towing ability. That's my take on it anyway. I won't know until the new engine is built and installed.

Well, have fun with your gilmer.

04-19-2008, 08:40 PM	#16
Jeff20B Rotary Fanatic Join Date: Mar 2008 Posts: 215 Rep Power: 18	The gilmer is probably as loud as an atkins supecharger with the 5 or 6 pk belt on their aluminum pulley kits. It can be deafening if the SC is new and you lean your ear next to it, but with the hood closed and normal driving, it just sounds like a little something. Probably just like a gilmer. I like RB mufflers. As far as I'm concerned, it's RB or Borla and not much else. Maybe Rotary Engineering glasspacks, but I'm starting to tire of the noise levels, even it it's mainly bass-throaty like on my REPU. I'd prefer the sound of an RB dual pipe 'streetport' full exhaust system because it's quiet at idle, just fine at cruize and you can hear it when you get on it. Perfect. Yeah, the 30 pounder can be easy to drive at times, but once you go through the learning curve with a light steel, you will love it and never want to drive a heavy flywheel again. Even the mild '83-'85 12A and GSL-SE flywheels feel heavy comparatively. I will say this though, my bro's RX-4 had a GSL-SE flywheel and was perfect while NA, but while it had the 5" supercharger, it felt like the old heavy stock 30 pound flywheel. Once the SC came off, it felt fine again. I wouldn't want a light steel for that car, unless it had an SC, because the vehicle weight is kinda highish and the rear diff gearing is very high at 3.636. My Cosmo is going to be the same way - similar vehicle weight, same tall diff gearing, but bigger (taller) 14" tires. I have a GSL-SE flywheel waiting to go in. My REPU currently has a 30 pound stock flywheel which really sucks to drive, partially because the rear gearing is a little lower, and when there is no weight in the bed, the flywheel is just too heavy. Plus it has other problems like a leaky slave cylinder, grabby clutch that's worn out and has bad springs etc. It's a chore to drive. I have a new light steel flywheel, stock disc and SS pressure plate which should match the heavy duty stock pressure plate in pedal effort. Hopefully the stock disc won't be so abrupt and should allow towing and the reduced weight of the light steel will make a supercharger install a reality. The extra weight of the SC will add back what the light steel flywheel takes away and should allow easy shifts, like you said, and towing ability. That's my take on it anyway. I won't know until the new engine is built and installed. Well, have fun with your gilmer. Last edited by Jeff20B; 04-19-2008 at 08:44 PM.