slamar1

Hi Guys!

New to the site and forum. Lots of good technical info here.

What size cam and injectors would you recommend? I have 60 lb injectors now.

XtremeLover1999

I have 75 lb/hr injectors and 242/248 dur , .6xx/.6xx lift , 114 lobe sep cam .
I haven't tried it yet . But will soon .
Geomar

SINISTER

iTrader: (16)

welcome to the board sent u a pm

BIGBOS

I'll be getting my setup together soon

370 c.i.
236/242 .600/.605 114lsa
F1 blower
7.25" crank pulley, 3.4" blower pulley, SDCE tensioner setup (ONLY WAY TO GO)\
60lb injectors

ls1290

iTrader: (20)

On my 402/F-1R( 5.85" CP 4.10" BP ):

236/245//598/612//115 Comp Cam
75# Rc Engineering HI Injectors

NA$TY-TA

iTrader: (21)

370ci
230/236 .598/.608 114+4
D1-SC
7.25" crank pulley, 3.4" blower pulley, SDCE tensioner setup (ONLY WAY TO GO 2nd that
60lb injectors

It depends on how much power you end up makeing you might have to step up to 72# injectors.

I would say with a 383ci go with a 236/242 .590ish/.610ish on a 114 or higher.... i would go with how your heads flow and hpw high you are going to spin the motor.
Kyle

slamar1

I will be using the AFR 225 heads. Will a 238/242 .598/.610 115 be too much cam? I would like a livable idle, nothing too radical.

NA$TY-TA

iTrader: (21)

That cam should work just fine with a 383........

ls1290

iTrader: (20)

The idle characteristics is mainly defined by the LSA. A 115 LSA will produce a nice slightly noticable lope.

Pro Stock John

iTrader: (34)

Mine:

348ci
9:1
230/236//115//+2 Cam Motion from FMS
Vortech YS
83 lb Siemens

slamar1

Update:

Car is put back together. I got the car back from the tuner for a couple of weeks to break the motor in. Car made 724 at 6000rpm. Tq was at 647. There is more in it as we got a little belt slip at about 5000 rpm. The car has not yet been taken to 6500 so I am expecting a couple more lbs of boost. Maybe we'll see 800, but I am optimistic that I'll have 775. Final cam specs were .595/.598 232/234 114. Injectors were 72lbs. We'll find more in it... stay tuned.

99.9percenter

iTrader: (2)

That is good!! What size pulleys? How much boost# @ 5000? 6000? At what point did you have to get bigger injectors? _Tim

slamar1

Thanks. This is with a 4.2 inch pulley

Boost:

2500rpm - 3lbs boost
3000rpm - 4lbs boost
4000rpm - 6.5lbs boost
5000rpm - 10lbs boost

at 5000rpms, the belt starts slipping a bit. but it looks like the following when we get it fixed:

5500rpms - 11-12lbs boost
6000rpms - 12-13lbs boost
6500rpms - 14-15lbs boost

We went bigger injectors from the get go. The fuel system is a custom job and the 72 lb injectors are at about 70% or so. This is with 2 fuel pumps and a boost-a-pump. Its pretty impressive... I will figure out how to post the dyno sheet so you can see... the fuel pressure keeps climbing with boost. It tracks it perfectly.

slamar1

BIGBOS

What belt tensioner setup are you using, and what kind of trans are you using

slamar1

I have the East Coast Supercharging bracket setup. Trans is a MN6. We were playing with different pulleys and come to find out, we discovered the Reichard racing pulley was turned backwards. The Reichards have grooves cut into them specifically for grip... intalled the wrong way and they can start chaffing the belt due to the cut design. An easy mistake and an easy fix. Final dyno numbers in a couple of weeks. Xtreme brought the car to me to put some "easy" miles on the motor before they really tear into it. The car is definitely wicked

Birdie2000

iTrader: (15)

Wow, must have one monster of an exhaust port for that cam! Sweet power!

slamar1

Thanks. The heads are TEA stage 2.5 AFR heads with a 3.90 bore. Here is the flow sheet.

2MuchRiceMakesMeSick

very nice

Worm

iTrader: (2)

Saw the thread on corvette forums, everything about this car is top notch. Very nice indeed.