CamaroX84

On a newly rebuilt 89 350 TPI motor, with the following mods, what would be the highest recommended RPM for me?
-Bored .030 over
-Forged alminum pistons
-Stock rods
-ARP Wave-Loc Rod Bolts
-Stock crank
-Super-Duty Clevite .010 over main and rod bearings
-Standard cam bearings
-Fel-Pro gaskets
-Crane Cams Compucam Camshaft - I forgot the stats, but it's like 2000-5500 RPM range
-Redone stock heads (not ported)
-Ported plenum and intake
-Headers

Thanks.

Guest

Heres part of the puzzle:
"I forgot the stats, but it's like 2000-5500 RPM range"

That should be a clue right there. Stock hydraulic roller lifters are heavy. They dont take well to much of anything past 6000RPM. Theres another clue. The bottom end will handle 6000 as well, maybe more if you had more done to the rods than just throwing the wave-loc bolts in there. You also said its a TPI, which is a limiting factor too.

6000 is probably as far as you want to go with it. It will more than likely run faster shifting a little less than that from 1st, and even less (like 5000) from 2nd.

ede

max i think you know everything don't you? i'd of never figured that one out on my own.

------------------
ICON Motorsports

1st & 3rd

GMTech

Stock valve springs allow "valve float" around 5K.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--

'97 Bonneville SSE

Guest

No, I know about 2% of everything. GMTech is covering the rest

CamaroX84

Forgot to say that I have Crane valve springs and retainers as well.

Guest

I still wouldnt take it past 6000. You will have to experiment with shift points, but I would imagine 5500 in first and 5000 in second would be a good starting point.

Tom84L69

my L69 with stiff(?) valvesprings and a 230/230 cam with .480 lift likes to rev. My engine is rebuilt and checked thouroghly for clearances. The stock heads are ported and milled slightly and the computer and emissions stuff is gone. I rev this motor to 6000+ very frequently. I try to shift around 6100 or 6200 in first and 6000 in every other gear. The motor just mants to keep pulling and i have been revving it for two years(weather permitting) If built correctly, stock stuff can rev problem free!
Just be sure the motor is built right!

TomP

Curious- what's valve float "feel" like to the driver? Thanks!


------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

five7kid

iTrader: (14)

Like a rev limiter. Like your SOTP sliding foward.

Also gives you a sick feeling in your stomach.

It's what it makes your engine feel like that's more important. Loose valve train components bouncing around, keepers liberating themselves from retainers, pistons slapping valve heads, valve stems bending under valve guides...

A rev kit takes care of those heavy roller lifters and takes the dynamic strain off the pushrods on up.

------------------
82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, WP 305 heads ported & polished, Hooker headers & y-pipe, hi-flow cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.