Carbed S5 I noticed on CL.

Max777 · 02-09-2009, 11:33 PM

http://chambana.craigslist.org/cto/993031121.html

Ok, so I noticed this car on CL. what do you guys think? It was originally built by a guy who drag raced it, who then sold it to another person, who in turn gave it to his nephew when the clutch went out on it.

Both the uncle and nephew have not owned the car for that long, and have only added a muffler to it because it it EFFIN LOUD! They dont know a whole lot, but know enough to not destroy it, such as the fact that you need to add premix to the gas, and to let the car fully warm up when you drive it.

Unfortunately, the original builder could not be contacted, but the car seems to have been built with good intentions, sporting a full autometer gauge cluster, as well as a nice radiator and electric fan. When we started it up, it did not smoke hardly at all, and the guy selling it also mentioned that he has started the engine and let it run untill the car warms up. The engine also has evidence of having been rebuilt, as well as thought being put into the carb setup.

However, this is the thing that scares me...

The car has a carburated setup, with full exhaust, and idles at around 3,000rpm.

It seems to rev ok, with some slight roughness, but I kinda expect it out of this setup. The way it's controlled is with an FPR (fuel press gauge under hood) and twin holley carbs. Now, I dont know SHIT about carbs, and am wondering if it's possible to set the car so that it idles lower, yet still drives fine? Is there a way to tune this mofo w/o a dyno, and a wideband?

Thing is, because the contact info of the original builder was lost, I have no idea about the engine, maybe it was bridge ported, is bulletproof, and can rev to the stratosphere, or maybe it's just a stock port carb setup they could not get to idle at lower rpm?

My friend wanted me to ask people around, because he wanted to buy it. Currently he has an 86gxl, but he wants a better car.

So, anyone here have experience with a tuned carb setup?

The price is listed as 1500, but we managed to get the guy down to 1200. Personally, I think that for this money, i would get the car, part out the carb setup, and then just go turbo with it, but my friend is looking for an actual car, not a project that will sit on jackstands for a year or two...

need RX7 · 02-09-2009, 11:54 PM

300 hp

.

Whizbang · 02-09-2009, 11:55 PM

sounds like the carb setup is a way off from "tuned"

PercentSevenC · 02-10-2009, 01:20 AM

256:1 premix with a disabled OMP? That doesn't bode well...

Max777 · 02-10-2009, 09:36 AM

Come on guys, I'm looking for serious replies and actual info here, please try to make mature comments!

djmtsu · 02-10-2009, 12:17 PM

A local guy, FCZach (also owns the Suzuki RE-5) has a carb set up on his FC. Maybe PM him for more info.

Whizbang · 02-10-2009, 04:40 PM

it might be worth trying to run the carb setup. But like i said, it sounds way out of whack. But possibly good tuning could solve the majority of the issues.

Max777 · 02-13-2009, 01:35 AM

hmm, well I was hoping there would be more old school people around, but I guess I will have to keep looking, lol.

We might just buy it, fix the clutch, and resell.

02-09-2009, 11:33 PM	#1
Max777 Pirate Join Date: Mar 2008 Location: Central IL iTrader: (5) Posts: 1,323 Rep Power: 18	Carbed S5 I noticed on CL. http://chambana.craigslist.org/cto/993031121.html Ok, so I noticed this car on CL. what do you guys think? It was originally built by a guy who drag raced it, who then sold it to another person, who in turn gave it to his nephew when the clutch went out on it. Both the uncle and nephew have not owned the car for that long, and have only added a muffler to it because it it EFFIN LOUD! They dont know a whole lot, but know enough to not destroy it, such as the fact that you need to add premix to the gas, and to let the car fully warm up when you drive it. Unfortunately, the original builder could not be contacted, but the car seems to have been built with good intentions, sporting a full autometer gauge cluster, as well as a nice radiator and electric fan. When we started it up, it did not smoke hardly at all, and the guy selling it also mentioned that he has started the engine and let it run untill the car warms up. The engine also has evidence of having been rebuilt, as well as thought being put into the carb setup. However, this is the thing that scares me... The car has a carburated setup, with full exhaust, and idles at around 3,000rpm. It seems to rev ok, with some slight roughness, but I kinda expect it out of this setup. The way it's controlled is with an FPR (fuel press gauge under hood) and twin holley carbs. Now, I dont know SHIT about carbs, and am wondering if it's possible to set the car so that it idles lower, yet still drives fine? Is there a way to tune this mofo w/o a dyno, and a wideband? Thing is, because the contact info of the original builder was lost, I have no idea about the engine, maybe it was bridge ported, is bulletproof, and can rev to the stratosphere, or maybe it's just a stock port carb setup they could not get to idle at lower rpm? My friend wanted me to ask people around, because he wanted to buy it. Currently he has an 86gxl, but he wants a better car. So, anyone here have experience with a tuned carb setup? The price is listed as 1500, but we managed to get the guy down to 1200. Personally, I think that for this money, i would get the car, part out the carb setup, and then just go turbo with it, but my friend is looking for an actual car, not a project that will sit on jackstands for a year or two... __________________ Rotaries:They are NOT that complicated! Last edited by Max777; 02-09-2009 at 11:37 PM..

02-09-2009, 11:54 PM	#2
need RX7 Clean S4 Nutswinger Join Date: Mar 2008 Location: Sterling Heights, MI iTrader: (0) Posts: 485 Rep Power: 17	300 hp . __________________ -Ted -1986 Mazda RX7 Sport [DD/beater]: engine finally let go at 205k. parts car status. -1986 Mazda RX7 base [resto-mod project]: S5 n/a swap in progress.

02-09-2009, 11:55 PM	#3
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	sounds like the carb setup is a way off from "tuned" __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

02-10-2009, 09:36 AM	#5
Max777 Pirate Join Date: Mar 2008 Location: Central IL iTrader: (5) Posts: 1,323 Rep Power: 18	Come on guys, I'm looking for serious replies and actual info here, please try to make mature comments! __________________ Rotaries:They are NOT that complicated!

02-10-2009, 12:17 PM	#6
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	A local guy, FCZach (also owns the Suzuki RE-5) has a carb set up on his FC. Maybe PM him for more info. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

02-10-2009, 04:40 PM	#7
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	it might be worth trying to run the carb setup. But like i said, it sounds way out of whack. But possibly good tuning could solve the majority of the issues. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

02-13-2009, 01:35 AM	#8
Max777 Pirate Join Date: Mar 2008 Location: Central IL iTrader: (5) Posts: 1,323 Rep Power: 18	hmm, well I was hoping there would be more old school people around, but I guess I will have to keep looking, lol. We might just buy it, fix the clutch, and resell. __________________ Rotaries:They are NOT that complicated!