Stock fuel system Questions.
Thread Starter
TECH Regular
Joined: May 2007
Posts: 433
Likes: 0
Stock fuel system Questions. I am planning on doing a H/C job on my car this spring. I'm thinking heads, mild cam (gm847 maybe), and a 58mm TB. A performance shop owner I know said the bottom end would handle a 125 wet shot no problem. Could I do both of these without messing with the fuel system? The motor would never see over 6500 revs, and the wet shot is delivering its own fuel, so I dont know if fuel delivery upgrades are necessary. Please give your opinions, and if you think the fuel system does need bolstering, then what are you thinking? Injectors, FPR and a warbro 255L? I dont have a fat wallet, so I would like to do this on the cheap. But starting over from scratch will obviously be more expensive than the fuel system. 
I recently did a head cam swap and my fuel pump **** its pants. So i'm currently installing a racetronix fuel pump kit to replace the stock one. I hear good things about walbro too. With the heads and cam alone you'll be needing new injectors. I upgraded to 30#SVO's but decided to go another step up with injectors. with a cam like the gm 847 you'll probably want a decent sized injector. Let the pro's come in to help measure. (I believe with my setup the svo's would have been fine but i went another step for future mod's sake.)
Oh and if you are going to put a cam in it that won't rev over 6500rpm, I'm almost possitive the gm847 really enjoys high rpm.. if you plan to port and polish the heads go ahead and just get a package from elliottsportworks.com or advancedinduction.com they're both very reputable.
Oh and if you are going to put a cam in it that won't rev over 6500rpm, I'm almost possitive the gm847 really enjoys high rpm.. if you plan to port and polish the heads go ahead and just get a package from elliottsportworks.com or advancedinduction.com they're both very reputable.
I am planning on doing a H/C job on my car this spring. I'm thinking heads, mild cam (gm847 maybe), and a 58mm TB. A performance shop owner I know said the bottom end would handle a 125 wet shot no problem. Could I do both of these without messing with the fuel system? The motor would never see over 6500 revs, and the wet shot is delivering its own fuel, so I dont know if fuel delivery upgrades are necessary. Please give your opinions, and if you think the fuel system does need bolstering, then what are you thinking? Injectors, FPR and a warbro 255L? I dont have a fat wallet, so I would like to do this on the cheap. But starting over from scratch will obviously be more expensive than the fuel system.
NX nitrous wet system, 100 shot
BFG DRs 255/50/16s on stock rims
Stock clutch, stock fuel pump (which i wouldn't recammend but he was getting away with it)
Stock Manifolds/exhaust (just gutted the Cat)
K&N CAI & Elbow
Mail order tune for the nitrous & window switch.
That car was so impressive to watch at the track (for me anyways), because it looked stock, but in reality it was, right down to the stock salad shooters lol. Thats the best way to go cheap & have a blast. my .2 cents.
Go with a custom grind cam so you can get what you want out of it. And agreed with what said above, this **** adds up quicker than you'd expect! It's addicting though
Good luck!
Good luck! Thread Starter
TECH Regular
Joined: May 2007
Posts: 433
Likes: 0
lt1z28camaro, what times do you run? You have taken about the same direction I am going. I'm planning on doing a 12 bolt soon after the H/C job. I don't need anything too strong as it is almost exclusively a street car with kdw's. I may talk to LE or AI for the cam, but have decided on AFR's new eliminators.
I'm just now getting all of the bugs out of my setup so I don't have any times yet.. People with similar setups run 12.00's and high 11's. Nothing to crazy, but it's my dd so it's enough for now. The cam I have makes power to about 6200 rpm's then starts to level off and rev limiter is at 6500rpm's. This may be a good cam for you actually.. People with stock bottom ends have pushed it to the 230/236 LE cam but i didn't want to push my bottom ends limit..
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
