- Navigation
Results 1 to 10 of 13
Thread: Stock injectors?
-
06-25-2015, 04:12 PM #1
Lurker
- Status
- Offline
- Join Date
- Feb 2015
- Name
- David
- Vehicle
- 1996 Camaro Z28
- Location
- Lincoln, NE
- Posts
- 23
Stock injectors?
I am just wrapping up my project and am not sure if my stock injectors are up to par..
The car has cnc ported heads, 235/243 cam, and stock intake. Hopefully going to at least start the car tomorrow night on the stock injectors. Do you guys think I need to jump up to bigger injectors??
1996 Camaro Z28
-
06-25-2015, 05:10 PM #2
Xtreme Member
- Status
- Offline
- Join Date
- Nov 2012
- Name
- Shaun
- Vehicle
- 1994 Formula
- Location
- Phillipsburg NJ
- Posts
- 7,266
Supporting Member
Most likely a 30 or 33lb on the top end. Watch ur datalogs
Originally Posted by NASTZ
2021 Charger Scat 392
1994 Firebird Formula 381 stroker - Carrying the torch! - 9.90 @ 134.3mph on a 200 shot
The wrench/driver for LTConvert's 94 Z28- Ellwein 383/LE Trickflows/ D1SC / CPT Ultra Pro Race 4L60E
10.78 @ 125mph. Shooting for 9.99 for Frank Cahall!
-
06-25-2015, 06:03 PM #3
Lurker
- Status
- Offline
- Join Date
- Feb 2015
- Name
- David
- Vehicle
- 1996 Camaro Z28
- Location
- Lincoln, NE
- Posts
- 23
For sure will get injectors and tune before I find the big end. Any concerns with just getting it started? Or putting around town?
-
06-25-2015, 06:38 PM #4
Lurker
- Status
- Offline
- Join Date
- Dec 2011
- Name
- Jonathan Englund
- Vehicle
- 1994 z28/1994 formula
- Location
- Nebraska
- Posts
- 549
you'll be fine just putting around Originally Posted by NASTZ
94' Z28 A4 black: turbo build in progress
94' Formula A4 red: 355, 11.5:1cr, LE 231/239 cam, comp promags, lpp's, Yank stall, 3:42's, Solomon tune
07' Impala A4: 180000 miles of stockness
-
06-26-2015, 10:06 AM #5
Lurker
- Status
- Offline
- Join Date
- Feb 2015
- Name
- David
- Vehicle
- 1996 Camaro Z28
- Location
- Lincoln, NE
- Posts
- 23
That's what I was thinking just wanted to double check!
-
06-28-2015, 10:09 PM #6
Lurker
- Status
- Offline
- Join Date
- Mar 2015
- Name
- Joe
- Vehicle
- 1997 Pontiac Trans Am
- Posts
- 159
After seeing the FIC videos on youtube comparing stock injectors and there bosch type 3. The stock injectors looked pretty sad. they looked like a garden hose spraying fuel. I would definitely look into injectors
LE1 Heads/Cam, LS1 Lid, 6 Speed, Competition Clutch 2.5, 3.90 Gears, UMI suspension,
Strano Springs, Strano 35/22mm Sway Bars, Solomon Tune, Magnaflow Catback
-
11-12-2015, 04:07 PM #7
Lurker
- Status
- Offline
- Join Date
- Aug 2015
- Name
- Braxton
- Vehicle
- 1996 ws6 trans am
- Posts
- 19
I need suggestions on picking out an injector size. I ordered 210 afrs yesterday and do I need to get a bigger fuel pump also.
96 ws6 trans am 355, stock top end, nitrous cam, strange 60, umi tunnel mount tq arm, control arms, panhard, and Viking shocks.
-
11-13-2015, 05:49 AM #8
Lurker
- Status
- Offline
- Join Date
- Feb 2015
- Name
- Sean Cross
- Vehicle
- 1995 Camaro Z28
- Location
- Lake County, IL (Chicagoland)
- Posts
- 143
ws66 need more info than just heads, cam? n2o? boost? e85/gas? max rpm? intended use?
-
11-13-2015, 10:27 AM #9
LTx Guru
- Status
- Offline
- Join Date
- Apr 2013
- Name
- Fred
- Vehicle
- 1994 Formula - SOLD
- Location
- Central NJ
- Posts
- 2,283
For a normally aspirated engine running gasoline, I've found you can estimate the MINIMUM injector size by multiplying the FLYWHEEL HP by 0.07
Example: 500 flywheel HP x 0.07 = 35 #/HR
That's based on a less conservative model (0.476 BSFC/85% DC) than the typical calculators that recommend an 0.50 #/HR/HP BSFC, and an 80% duty cycle. But is seems to have worked for all the LT1's I've used it on.
There is nothing wrong with going oversize on the injectors, as long as you don't get ridiculous. The stock PCM seems to be able to turn down 42 #/HR injectors to the low pulse widths required for idle.
As far as the N2O, that only becomes a factor if you are using a dry setup. Boost is a whole different story.SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
-
11-13-2015, 03:09 PM #10
Lurker
- Status
- Offline
- Join Date
- Aug 2015
- Name
- Braxton
- Vehicle
- 1996 ws6 trans am
- Posts
- 19
Its going to be spinning around 7k on 93 octane and lets say about a 175 dry. As far as cam im not really sure. Tony Mamo is grinding it for me. I think he said right under 600 lift. Not for sure though he said it was an awesome cam.
96 ws6 trans am 355, stock top end, nitrous cam, strange 60, umi tunnel mount tq arm, control arms, panhard, and Viking shocks.
Reply With Quote
Bookmarks