Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

is 10.9to1 to much compression for daily driver?

Thread Tools
 
Search this Thread
 
Old 01-05-2001, 12:33 AM
  #1  
Member
Thread Starter
 
bad camaro RS's Avatar
 
Join Date: Sep 2000
Location: indiana
Posts: 256
Likes: 0
Received 0 Likes on 0 Posts
is 10.9to1 to much compression for daily driver?

i thought i had about 9.5to1 with 64cc stock heads but come to find out i had 10.2 i bought a set of afr 195cc milled to 58cc so im stuck with them now but should i be alright with 92 octane gas? thanks

------------------
1992 camaro RS
373 10 bolt rearend
ssm sfc's
87 350 TPI
bored 30 over
compucam 2032 with 1.6
482-495 LIFT 214-220 duration full roller rockers
msd6AL
1 5/8 headman headers
2 `1/2 flowmaster exuast
k&n filters gutter air box gutted maf
3 pc under drive pulleys
no emissions no egr etc
custom ED Wright chip
eddelbroc intake base and runners ported plenum
midly ported and polished stock heads
Taylor 8mm wires
B&M mega shifter
gutted maf/airbox
hotchkis lower control arms
3" exhuast cutout
homemade cold air intake
2000 tci stall
700R4 with B&M shift kit
new best ET 13.5 @104.66
Old 01-05-2001, 08:23 AM
  #2  
Senior Member

 
88 427 Camaro's Avatar
 
Join Date: Jul 1999
Location: Mpls, MN USA
Posts: 931
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 Camaro
Engine: 427 BBC
Transmission: T400
With aluminum heads and enough overlap on the cam, you should be alright.

Miles

------------------
88 427 Camaro
12.18 @ 113mph 1.75 60ft

www.koolmeister.com
Old 01-05-2001, 09:19 AM
  #3  
Supreme Member
 
jcb999's Avatar
 
Join Date: Aug 1999
Location: College Station, Tex USA
Posts: 1,443
Likes: 0
Received 0 Likes on 0 Posts
Car: 89rs
Engine: 400Sb
Transmission: Tremec 3550
If you are planning on keeping the cam you have you will probably have a problem. The cam you have in your sig file is designed to make high cylinder pressure at low speeds. The limit is probably 10 or 10.25 with pump.
There is probably a .055 thick head gasket that will drop it about .15 point from a .035 but I think you might have to find a cam with a little more duration. If you try to get something with a much tighter LSA (which is really what you need), the closed loop operation will be affected.


For 87-89 Corvettes, Camaros and Firebirds factory equipped w/350 TPI engines. Adj. Fuel Pressure Regulator (99470-1) is recommended for maximum performance. (50 state legal for listed applications, C.A.R.B. E.O. D-225-22). Basic RPM 2000-5500 CompuCam
2032
Cam Specifications
214 220
270 276

LSA 112

Valve timing events
0 34
47 (7)
.452
.465

Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
F.I. 57 Belair
DFI and ECM
8
08-23-2021 01:09 AM
my86bird
Firebirds for Sale
9
10-23-2015 12:20 PM
rsrookie
Camaros for Sale
0
09-05-2015 07:08 PM
Vassago
Convertibles
15
09-04-2015 09:37 PM



Quick Reply: is 10.9to1 to much compression for daily driver?



All times are GMT -5. The time now is 07:07 AM.