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Reply With QuoteCan't upgrade injectors in the stock fuel system. He is stuck with puny 19# injectors.
Get a marine intake manifold.
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This is a discussion on gmc vortec 5.7 boosted within the Forced Induction forums, part of the Performance category; so im asking this for my buddy but he has a 98 gmc vortec 5.7 with a powerdyne procharger pushing ...
so im asking this for my buddy but he has a 98 gmc vortec 5.7 with a powerdyne procharger pushing 7psi, electric fan, headers no cats, and a 2800-300 stall, and tuned. he wants to upgrade wires, distributor, injectors, plugs, fuel pump. what everyones opinion
Last edited by chevyking4; 03-01-2010 at 02:13 PM.
Can't upgrade injectors in the stock fuel system. He is stuck with puny 19# injectors.
Get a marine intake manifold.
Last edited by The Fiddle; 03-01-2010 at 02:51 PM.
<-- Brad519
1999 OBS K1500 Black Bear tuned 383 Z71. 2" rear blocks, Hankook MT's. Steady ole Chevy.
2005 Silverado LT, L33, 4.10's. 6000k HID's. Rough Country 2" Leveling Kit. 295 70 17 Falken AT's. Black Bear 91 tune.
Originally Posted by The Fiddle
http://www.pacificp.com/forum/viewtopic.php?t=317
Tooned by Lowdown
'98 'burb DC 6.5" Stage II, RC torsion bars, 7" Alcans, 35" Nitto MG, BB Tune, 0411, Marine, Whipple
'07 TBSS AWD 3SS
yea ive seen the marine intake, how much does it cost to do and is there another option?
Expect to spend about $1000 when its all said and done with. The actual physical manifold is somewhere between $500-$700 IIRC.
Since the supercharger is made specifically for his truck, he can't run an aftermarket fuel injection system without the TB being in a different spot. That's where the marine intake comes in, looks stock and measures out stock.
1999 OBS K1500 Black Bear tuned 383 Z71. 2" rear blocks, Hankook MT's. Steady ole Chevy.
2005 Silverado LT, L33, 4.10's. 6000k HID's. Rough Country 2" Leveling Kit. 295 70 17 Falken AT's. Black Bear 91 tune.
i saw a post on this forum about 3 months ago i believe saying someone finally came out with bigger injectors for the stock manifold, around 30lbs i believe. ill look into it in a sec.
as for the pump just use the walbro 100psi in tank pump, i got mine branded under edlebrocks name on summit racing for around 100 bucks i believe. use regualr delco plugs, maybe one range cooler and i like my taylor wires, msds are good too. maybe get a blaster coil while your at it. no real need to get a new distributor, a good cap and rotor will be fine.
Last edited by Chevy1500z71; 03-01-2010 at 07:41 PM.
money pit- 1995 k1500, 4 bolt 355, whipple, nv4500, 14bolt semi floater.
turd box dd- 1994 5spd cummins
please tell me ya can find it lol i have been searching for other options but nothing so far my buddy is pretty bummed. also what about the 454 vortec injectors
The vortec 454 is a real MPFI system with real injectors. Cannot be swapped into the vortec 350. The 350 uses "poppet" style injectors.
It's retarded to say the least. Not exactly sure what GM engineers were thinking there.
1999 OBS K1500 Black Bear tuned 383 Z71. 2" rear blocks, Hankook MT's. Steady ole Chevy.
2005 Silverado LT, L33, 4.10's. 6000k HID's. Rough Country 2" Leveling Kit. 295 70 17 Falken AT's. Black Bear 91 tune.
that what i figured but what sure my bud threw that at me but i was doubting it
Yeah sorry to hear he is bummed. These trucks out of the box are not exactly minded for performance enthusiasts. But no reason to give up! When bolt-ons fail, go custom!
1999 OBS K1500 Black Bear tuned 383 Z71. 2" rear blocks, Hankook MT's. Steady ole Chevy.
2005 Silverado LT, L33, 4.10's. 6000k HID's. Rough Country 2" Leveling Kit. 295 70 17 Falken AT's. Black Bear 91 tune.
so far he is saying screw the motor he has and wants to do a 5.3 swap, anyone have any good links for 98 gmc 1500 details?
Sell teh 5.3 and grab a nice inexpensive LQ4.
peace
PAuly
97 GMC 2wd RCSB 5.7, s10 2700 footstall, Hooker 24621hkr LT's , 2.5" cats dual 4"pipes exit B4 pass. side tire, custom driveshaft 3.42 G80 FIPK MAF descreen GM/Mercruiser Marine intake manifold 29lb LS2(EV6) injectors Ed Wright PCM(best mod), LT4 KM 14.8@94mph 2.007 4000lbs 122mph
http://www.hotrodlane.cc/PDFFILES/Lisa%20Tahoe.pdf
http://ls1tech.com/forums/conversion...-98-tahoe.html
LOTS of guys over at ls1tech.com and ls1truck.com have done these swaps. They are very knowledgable about the subject and if your friend wants to go that route I would suggest you ask over on one of those boards.
Why not a 6.0?
1999 OBS K1500 Black Bear tuned 383 Z71. 2" rear blocks, Hankook MT's. Steady ole Chevy.
2005 Silverado LT, L33, 4.10's. 6000k HID's. Rough Country 2" Leveling Kit. 295 70 17 Falken AT's. Black Bear 91 tune.
3/4 down the page and you will find 32Lb spider injectors.. $410
http://www.wynjammer.com/ALM1115/GM_...ze_Vortec.html
350 .040, 224/236 COMP cam, E-Tec 170s, P&P intake, Whipple S/C @ 6psi, Shorties, E-Fan, PCMforless 93 tune, 3:73s, TCI servo.
Idle vid--> http://www.youtube.com/watch?v=73-R68_tCJA
i have seen replacement injectors from echelin that napa sells, they replace the poppet style injectors and you can plug in up to 30# injectrors
dude thanks so much for this
No prob.
350 .040, 224/236 COMP cam, E-Tec 170s, P&P intake, Whipple S/C @ 6psi, Shorties, E-Fan, PCMforless 93 tune, 3:73s, TCI servo.
Idle vid--> http://www.youtube.com/watch?v=73-R68_tCJA
Report back on those. 383 will be thirsty.
1999 OBS K1500 Black Bear tuned 383 Z71. 2" rear blocks, Hankook MT's. Steady ole Chevy.
2005 Silverado LT, L33, 4.10's. 6000k HID's. Rough Country 2" Leveling Kit. 295 70 17 Falken AT's. Black Bear 91 tune.
^^X2
350 .040, 224/236 COMP cam, E-Tec 170s, P&P intake, Whipple S/C @ 6psi, Shorties, E-Fan, PCMforless 93 tune, 3:73s, TCI servo.
Idle vid--> http://www.youtube.com/watch?v=73-R68_tCJA
I am running this Marine Multi-port intake and did the swap my self. I am running 42# injectors in mine for boost. I like the intake for the ablity to put what ever size injector that you need for your application. My .02
Johnnie P
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