What size are they??? need to rescale the IFR table...
THANKS
What size are they??? need to rescale the IFR table...
THANKS
01 Z06, 4L60E CONVERSION, L92/L76 TOP END, 72# LS3 INJECTORS (THANKS FIC), DRY NITROUS, COS5
We are told they are 40# and the same as LS7/3. If you look at the IFR for a LS7 it starts @ 41.7 but with strange Manvac so I use this with good results:
LABELS Injector Flow Rate (Lbs/Hour)
Manifold Vacuum PSI {link: GM.MANVAC} Value
0.0 39.993126
0.7 40.241145
1.5 40.489164
2.2 40.737184
2.9 40.985203
3.6 41.233223
4.4 41.481242
5.1 41.729261
5.8 41.977281
6.5 42.163295
7.3 42.411315
8.0 42.659334
8.7 42.907353
9.4 43.155373
10.2 43.341387
10.9 43.589407
11.6 43.837426
2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
PowrMax Performance
100 mm PowrMAF
LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals
Thanks, good info
Bruce,
I get a slightly different result. Not enough to worry about.
Joe
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph
Joe,
Agreed.
The IFR table from the stock LS7 does not escalate like we are used to which is why I started a bit lower.
Of note is that these injectors perform MUCH better than the SVOs we had used previously. I am told that the SVO spray pattern shoots on the floor of the head where the GMs cone pattern hits the back of the valve as intended.
This results include no black puff when on the gas, much better hot starts, idle plus a few more mpg. Also these new injectors seem to support more hp.
FAST sells a 50# of this style.
2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
PowrMax Performance
100 mm PowrMAF
LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals
http://forums.corvetteforum.com/show....php?t=1674178
I got the information a while back. It's from an HP tuners file.
My LS7 with a Vram and Amer.RacingHeaders @ 6700rpms logs 90% duty cycle. It seems they won't support much more power.
Last edited by jfpilla; November 30th, 2007 at 04:31 PM.
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph