Can anyone help me about crossfire injection
03-24-2007, 10:18 PM
#21
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Thank you all for your comments and input so I guess I didnt do so bad after all. I did just fill it up for the 1st time since I had it and added Lucas fuel injector/carb cleaner and outlaw octane boost and was told to do that every other fill up Appreciate the help.
03-24-2007, 10:25 PM
#22
Melting Slicks
no worries as far as the crossfire is concerned. If you do have any issues just post them here on the forum there are some real experts here. congrats on the new vette
03-24-2007, 11:06 PM
#24
Team Owner
The L83 and L98 are rather low compression, so pump premium is all they will ever need (when stock). Depending, many can run on 89 or even 87.
Try some SeaFoam. It's cool stuff. It will clean up the valves and gunk like nobodies business. I did it to the wifes Vette, and this big assed plume of white crap came out of the tail pipe. It's delivered via the power brake booster hose whilst the engine is running.
03-25-2007, 01:56 AM
#25
Burning Brakes
[QUOTE=CFI-EFI;1559523507]That can't be the real color of the wheels. NOBODY would do that to a Corvette. I think they were just "photo-shopped" to match the date of the picture.
Yep, I really did that to my wheels-it's a life size hot wheels car as it were, and it matches my bike(Repsol CBR thou). I like it. It's a epoxy base w/3 coats color 3 coats clear on the wheels-originally black. I had the car washed before the show and wiped it down when I got there. Gave me lotsa time to look around while everyone else was scrubbing and waxing-still won a trophy
Yep, I really did that to my wheels-it's a life size hot wheels car as it were, and it matches my bike(Repsol CBR thou). I like it. It's a epoxy base w/3 coats color 3 coats clear on the wheels-originally black. I had the car washed before the show and wiped it down when I got there. Gave me lotsa time to look around while everyone else was scrubbing and waxing-still won a trophy
Last edited by xrcrx; 03-25-2007 at 06:25 AM.
03-25-2007, 12:58 PM
#27
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Cruise-In 8-9 Veteran
aka/Trunk Monkey/Banned For Life/Corvette For Life
Why do you NEVER hear about what a pile of crap the 82 Vettes are??????? Hmmmmm.......
It's always these sorry old '84 Vettes that are NO GOOD.
How about not buying one and leave them out there for ME to buy. I've been seriously considering getting myself ANOTHER '84 Vette to go with ............anyway............. They are ALMOST GIVING them away now.
I got one. ABSOLUTELY LOVE it. I've had it for dang near TEN YEARS now.
I rarely even raise the hood on it. It just goes and goes like the 'Battery Bunny'.
BTW, that hood CoupeGuy mentioned is a COLD AIR INTAKE system... built into the hood.
The rest of'em ain't got THAT!!!
It's hasn't got the HP some other Vettes have but.....
It 'FEELS' good and DRIVES great.
I've got a Z06 that has outrageous HP.... and there's NO PLACE on the street I can practically 'let'er rip'.
So all that HP sits in the garage most of the time.
But my '84 gets driven quite regularly. Even when it sits for a few weeks, when I get in it, it cranks right up with the first touch of the key and it runs until I turn it off.
I wash it. I drive it. I change oil on it, I drive it. I vacumm the carpets, I drive it.
The CrossFire fuel injection requires just about Z-E-R-O maintenence.
And sitting directly under it is.....drum roll...... a famous Small Block Chevy engine.
I've found that about 99% of the folks that knock the CrossFire have NEVER owned one.
Another BTW...... My '84 Corvette has 151,000 Miles on that sorry old ORIGINAL CrossFire engine AND transmission.
How in 'de WURLD did it EVER make it THAT far since it's such a 'bad', "BAD', BAAADDD old engine.
They ALL should be THIS bad. Don't you think?
It's always these sorry old '84 Vettes that are NO GOOD.
How about not buying one and leave them out there for ME to buy. I've been seriously considering getting myself ANOTHER '84 Vette to go with ............anyway............. They are ALMOST GIVING them away now.
I got one. ABSOLUTELY LOVE it. I've had it for dang near TEN YEARS now.
I rarely even raise the hood on it. It just goes and goes like the 'Battery Bunny'.
BTW, that hood CoupeGuy mentioned is a COLD AIR INTAKE system... built into the hood.
The rest of'em ain't got THAT!!!
It's hasn't got the HP some other Vettes have but.....
It 'FEELS' good and DRIVES great.
I've got a Z06 that has outrageous HP.... and there's NO PLACE on the street I can practically 'let'er rip'.
So all that HP sits in the garage most of the time.
But my '84 gets driven quite regularly. Even when it sits for a few weeks, when I get in it, it cranks right up with the first touch of the key and it runs until I turn it off.
I wash it. I drive it. I change oil on it, I drive it. I vacumm the carpets, I drive it.
The CrossFire fuel injection requires just about Z-E-R-O maintenence.
And sitting directly under it is.....drum roll...... a famous Small Block Chevy engine.
I've found that about 99% of the folks that knock the CrossFire have NEVER owned one.
Another BTW...... My '84 Corvette has 151,000 Miles on that sorry old ORIGINAL CrossFire engine AND transmission.
How in 'de WURLD did it EVER make it THAT far since it's such a 'bad', "BAD', BAAADDD old engine.
They ALL should be THIS bad. Don't you think?
100% I have had my '84 for 3 years. THe only problem I have ever had was a relay that went bad. It took $12 and 30 seconds to fix.I do regular oil changes and filter changes, it is going strong with 120k miles on it... all original
03-25-2007, 01:23 PM
#28
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Originally Posted by k9kohl
Thank you all for your comments and input so I guess I didnt do so bad after all. I did just fill it up for the 1st time since I had it and added Lucas fuel injector/carb cleaner and outlaw octane boost and was told to do that every other fill up Appreciate the help.
Originally Posted by bogus
It's delivered via the power brake booster hose whilst the engine is running.
RACE ON!!!
03-25-2007, 02:29 PM
#29
Team Owner
03-25-2007, 02:31 PM
#30
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03-25-2007, 03:30 PM
#31
Melting Slicks
Nothing wrong with a 82 or 84 Crossfire as long as you understand how to work on them from the intake manifold up. They are very reliable if setup and maintained correctly, more than you would think. The TB shafts is one of the biggy items that needs to be looked at sometime over 50K on most CFs. If you can grab the linkage at the TBs and it moves, its bad...period and needs to be bushed, the bad shafts cause another vacuum leak and you will have idle issues and make it impossible to balance the TBs. The other item is the fuel pump, replace it with the 85 vette fuel pump and be done with it. Set the FP @14psi and the car will run like a champ as long as the TBs are balanced correctly and TPS set and thats where most people make the mistake and screw up the performance.
A couple of CFI places to visit are:
http://www.crossfire.homeip.net
http://www.crossfireinjection.net
A couple of CFI places to visit are:
http://www.crossfire.homeip.net
http://www.crossfireinjection.net
03-25-2007, 03:54 PM
#32
I think the 84's are quite cool, they get a bad rep. mostly from people who have never so much as sat in one. I would like to buy one with the Z51 handling package and tweak it's handling even more and up the power a little too. What an awesome sleeper Corvette that would be.
03-25-2007, 06:35 PM
#34
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Originally Posted by Buccaneer
The other item is the fuel pump, replace it with the 85 vette fuel pump and be done with it.
RACE ON!!!
03-25-2007, 10:10 PM
#35
Instructor
If You Build It, It Will Run...
Years ago I owned an 82 Camaro Z/28 Pace Car. It had the 305 with Cross-Fire. It ran ok, but back then they were very low on hp. Any way, I wanted to build a 350 for it and keep it CFI. Lots of people told me I was wasting my time, it wouldn't run, would be un-dependable yada, yada, yada. But no one would give me any credible reasons why this would be. So, thick headed yankee that I am, I built it anyway. 10.25:1 cr, 214 dur@.050 488 lift. tubular headers, MSD, lots of hours port matching and polishing the intake, balanced bottom end, Hypertech Corvette prom. The result? Well let's just say that my buddy with the big bad 5.0 GT Mustang got his butt whipped on a regular basis while I got @24mpg with all the dependable power I could use. IMO, nothing wrong with CFI, as for it's dependability, how many TBI small block trucks are still out there running? CFI is just basically that.
You and a few others were a big help in my choice of mods so far on mine. 14.3@96 so far.
03-26-2007, 02:06 AM
#38
Melting Slicks
Quote:
Originally Posted by Buccaneer
The other item is the fuel pump, replace it with the 85 vette fuel pump and be done with it.
If the stock 1984 pump is up to standards (test it) then there is nothing to be gained by a different fuel pump.
RACE ON!!!
Originally Posted by Buccaneer
The other item is the fuel pump, replace it with the 85 vette fuel pump and be done with it.
If the stock 1984 pump is up to standards (test it) then there is nothing to be gained by a different fuel pump.
RACE ON!!!
This is just my opinion on the subject and as always, others will vary, no biggy, everyone has a right to their opinion.
Last edited by Buccaneer; 03-26-2007 at 02:22 AM.
03-26-2007, 04:52 PM
#39
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Originally Posted by Buccaneer
The 82/84 pumps are normally weak (1 out of 10 are good) so to change it with the 85 pump and be done with it works. Save yourself the trouble later...Besides...Pumps are cheap, if they were hundreds of dollars then I'd test it and see what the max pressure the pump would put out. Set it @14psi and it will run very well with a stock ECM. Another thing to consider if using a 82/84 pump is, if it is lets say putting out 13psi at idle (which technically would be ok) under a hard load it probably will drop off under 12psi which is not an acceptable pressure and run lean at high end.
RACE ON!!!
03-26-2007, 09:36 PM
#40
Team Owner
It is not correct that 12 psi of fuel pressure is unacceptable. The spec is 9- 13 psi. The test is to see if the pump will maintain a steady pressure, within specs, under all conditions, and at full demand. My test includes reading a pressure gauge during a full 1/4 mile pass, winding the engine higher than usual, to create the maximum fuel demand for the pump. I have my fuel pressure set at 14 psi. During 1/4 miles passes, shifting at 6200 rpms, the pressure gauge needle did not even flinch. It did the same set a 17 psi. but it was blowing black smoke the whole 1/4 mile. With 1 in 10 being good, what are the odds that I have had all three in a row, good pumps. If and when an '84 needs a pump, an '85 pump is a good idea, but an '85 pump won't improve a thing over a properly operating '84 pump. To change just for the sake of the change is to throw away the life left in the old pump. For those that like to throw money away and follow the false fad of the week, just chase the rumors and the flock and needlessly change your pump. If one uses their head, they can save some bucks.
RACE ON!!!
RACE ON!!!
I have heard a lot of talk about the later pumps... but it never really made a lot of sense to me. There is a rather large difference in pressures and the regulator is only going to lower it...