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CFI air cleaner I have an 82 z28 CFI that I just rebuilt and the only thing I have left to do is replace the ugly air cleaner. I'm looking for something chrome. Two round air cleaners. Anyone know the specs I need or maybe some part numbers? Any help would be awesome. Thanks |
Re: CFI air cleaner You could get yours chromed, you could also look at the air cleaners that go on to 82 & 84 vettes. Another thing you can do is shop the junkyards for 4 cyl. tbi air cleaners, cut them up & make them an open element style. |
Re: CFI air cleaner I've seen people with two little edelbrock air cleaners on their crossfire. It looks a lot better |
Re: CFI air cleaner
Originally Posted by 82_Camaro
(Post 5240869)
I have an 82 z28 CFI that I just rebuilt and the only thing I have left to do is replace the ugly air cleaner. I'm looking for something chrome. Two round air cleaners. Anyone know the specs I need or maybe some part numbers? Any help would be awesome. Thanks That ugly air cleaner serves a function by sealing up to the hood scoops. Im not an expert but is it gonna run differently with out the hood scoops sealed to the aircleaner? |
Re: CFI air cleaner
Originally Posted by steves
(Post 5244932)
That ugly air cleaner serves a function by sealing up to the hood scoops. Im not an expert but is it gonna run differently with out the hood scoops sealed to the aircleaner? |
Re: CFI air cleaner Strangely,my factory shop manual has an illustration of the crossfire air cleaner with a snap-on plastic cover over basicly the same air cleaner that these cars came out with-must have been an idea that never made production as i have never seen one with the plastic cover-not even on the C/F prototypes... I ran an '84 vette air cleaner on my car for a while,but had to notch the cover to clear IIRC,the wiper motor. |
Re: CFI air cleaner
Originally Posted by 8t2 z-chev
(Post 5245327)
Strangely,my factory shop manual has an illustration of the crossfire air cleaner with a snap-on plastic cover over basicly the same air cleaner that these cars came out with-must have been an idea that never made production as i have never seen one with the plastic cover-not even on the C/F prototypes... I ran an '84 vette air cleaner on my car for a while,but had to notch the cover to clear IIRC,the wiper motor. |
Re: CFI air cleaner |
Re: CFI air cleaner LOL...i have heard TBI called"toilet bowl injection":) |
Re: CFI air cleaner Central Flush injection |
Re: CFI air cleaner You're definitely going to run into problems with another air cleaner, especially if you don't change the hood right away. First problem I see is clearance. you may have noticed that the CFI air cleaner isn't as tall as the LG4/L69. The manifold sits higher and there's the added issue of the hood induction, so the result is a pair of comparably thin filters, which you'll also run into problems finding suitable replacements for unless you get the K&N kit. There is no generic fram filter for this car. If you do try to go that way, you'll have to fabricate something to fit the TBI units for a good seal. I personally have not seen it done, but I suppose someone has probably done it. It's important with this system to have a good tight seal with your filters, not to mention the hood scoop. Those flaps aren't just for show, they serve a definite purpose. One thing you'll notice about your CFI setup is that it doesn't have a snorkel leading to the intake like all the other cars do. This means that you're sucking lukewarm engine bay air all the time unless you're at WOT and the flaps open. That is fresh cold air coming in and if you don't have a tight seal to your air cleaner through there you are throwing away horsepower, something your car is already seriously lacking. |
Re: CFI air cleaner
Originally Posted by tunedperformanc
(Post 5247150)
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Re: CFI air cleaner
Originally Posted by tlandoe
(Post 5247588)
You're definitely going to run into problems with another air cleaner, especially if you don't change the hood right away. First problem I see is clearance. you may have noticed that the CFI air cleaner isn't as tall as the LG4/L69. The manifold sits higher and there's the added issue of the hood induction, so the result is a pair of comparably thin filters, which you'll also run into problems finding suitable replacements for unless you get the K&N kit. There is no generic fram filter for this car. If you do try to go that way, you'll have to fabricate something to fit the TBI units for a good seal. I personally have not seen it done, but I suppose someone has probably done it. It's important with this system to have a good tight seal with your filters, not to mention the hood scoop. Those flaps aren't just for show, they serve a definite purpose. One thing you'll notice about your CFI setup is that it doesn't have a snorkel leading to the intake like all the other cars do. This means that you're sucking lukewarm engine bay air all the time unless you're at WOT and the flaps open. That is fresh cold air coming in and if you don't have a tight seal to your air cleaner through there you are throwing away horsepower, something your car is already seriously lacking. |
Re: CFI air cleaner By your car lacking horsepower, I was referring to all of ours in stock form, mine included lol |
Re: CFI air cleaner
Originally Posted by tlandoe
(Post 5247767)
By your car lacking horsepower, I was referring to all of ours in stock form, mine included lol Comp cams cam 12-364-4 flat tap Self aligning roller tip comp cam magnum 1.6 rockers Comp cam Magnum lifters Comp cam magnum push rods Comp cam beehive springs Comp double roller time chain Hooker headers and y pipe Mangaflow exhaust |
Re: CFI air cleaner You should be able to pull 250 with those mods, if your computer has been tuned also |
Re: CFI air cleaner You forgot to add 'port the heak out of the intake'. |
Re: CFI air cleaner
Originally Posted by tlandoe
(Post 5253354)
You should be able to pull 250 with those mods, if your computer has been tuned also |
Re: CFI air cleaner a good porting job on the stock intake makes a huge difference with a crossfire;did a manifold modification and port job(had to add some extra metal to the port intakes to get the radiused shape i wanted) on the '84 vette CFI 350 in my car and that along with a mild port job on the heads really woke it up from the original 205 HP rating:) more recently the fuel pump has been upgraded.My ECM has a hypertech chip,but that is the only(very minor) change from stock tune Base timing,fuel pressure,injectors, can be tweaked some to suit modifications. |
Re: CFI air cleaner
Originally Posted by 8t2 z-chev
(Post 5253635)
a good porting job on the stock intake makes a huge difference with a crossfire;did a manifold modification and port job(had to add some extra metal to the port intakes to get the radiused shape i wanted) on the '84 vette CFI 350 in my car and that along with a mild port job on the heads really woke it up from the original 205 HP rating:) more recently the fuel pump has been upgraded.My ECM has a hypertech chip,but that is the only(very minor) change from stock tune Base timing,fuel pressure,injectors, can be tweaked some to suit modifications. |
Re: CFI air cleaner The stock crossfire manifold is a major restriction- the cross section of the runners is pretty small,but one of the worse aspects is the way the entrance to each runner is cast/shaped with the sharp,non radiused edge to restict and disturb mixture flow...Next time you have the manifold off,would be good to work it over with a die grinder a little to improve the problem areas.You could also obtain a spare manifold to work on while the stock one remains in service until the ported one is ready:) One thing that is good about the crossfire manifold design is the runners are a pretty straight shot to the head intake ports,helping flow and velocity. The intake work on my 350 crossfire increased the usable RPM by about 1200 rpm besides the very substantial HP and torque increases. |
Re: CFI air cleaner
Originally Posted by 8t2 z-chev
(Post 5254636)
The stock crossfire manifold is a major restriction- the cross section of the runners is pretty small,but one of the worse aspects is the way the entrance to each runner is cast/shaped with the sharp,non radiused edge to restict and disturb mixture flow...Next time you have the manifold off,would be good to work it over with a die grinder a little to improve the problem areas.You could also obtain a spare manifold to work on while the stock one remains in service until the ported one is ready:) One thing that is good about the crossfire manifold design is the runners are a pretty straight shot to the head intake ports,helping flow and velocity. The intake work on my 350 crossfire increased the usable RPM by about 1200 rpm besides the very substantial HP and torque increases. |
Re: CFI air cleaner Don't bother with it. I just sold mine and put my stock one back on. For half the price you can port it just fine and use the extra cash on your heads. And you don't want to wait that long. I sold mine secondhand for 600 to a guy who just couldn't wait. |
Re: CFI air cleaner the renegade is very good-i have seen lots of pics of the runners and runner intakes and they look good:) Avalibility of the renegade was spotty last year but i hear some foundry problems and other issues have been solved and manifold is back in production. I did my manifold work back in 1995 and the whole operation was a bit of an ordeal with all the welding and grinding-if the renegade was avalible back then would have saved me a lot of work! the renegade is better than my heavily reworked stocker too. |
Re: CFI air cleaner
Originally Posted by tlandoe
(Post 5254766)
Don't bother with it. I just sold mine and put my stock one back on. For half the price you can port it just fine and use the extra cash on your heads. And you don't want to wait that long. I sold mine secondhand for 600 to a guy who just couldn't wait. |
Re: CFI air cleaner when i ported mine an electric die grinder was used with 6"long martendale carbide burrs,i hooked the die grinder to a varible speed control so the burr was easier to control and to prevent the burr"loading up" with aluminum-removed about 1/8"from most port internal surfaces,a little more in certain areas.built up the runner intakes to enlarge and give a nice flare shape with thick rounded edges-the welding was the hard part as my 150A tig welder was having a little trouble getting enough heat on the thick aluminum and my non-cooled torch was getting real hot:) Preheated the manifold in an oven to reduce warpage, so had to handle with welding gloves. For more clearance above the enlarged runner intakes, a 1/4"lidspacer was made out of aluminum. |
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