Go Back   Third Generation F-Body Message Boards > Tech Boards > Tech / General Engine

Tech / General Engine Why is my car making that sound? My car won't start! Combination questions? Don't see a board for your problem or have other technical or engine specific questions? Post them here!

Welcome to ThirdGen.org!
Welcome to ThirdGen.org.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join the ThirdGen.org community today!


Reply
 
Thread Tools
Old 10-12-2009, 12:23 AM   #1
Member
 
Join Date: Aug 2007
Location: Clarkston, MI
Posts: 181
Car: 1992 Firebird
Engine: 350 TPI
Transmission: 700R4 with B&M shift kit
Axle/Gears: 3.23 zexel 4th gen

Classifieds Rating: (0)
What's a good cam for stock heads/TPI.

Does anybody have a cam spec reccomendation for a motor if I intend to keep the stock heads and TPI? Thanks.
This ad is not displayed to registered members.
Register your free account today and become a member on ThirdGen!
Destructimus is offline vBGarage Page   Reply With Quote
Sponsored Links
Registered users do not see this ad.
Click here to register for free!
Old 10-15-2009, 05:51 PM   #2
Junior Member
 
Join Date: Sep 2009
Location: Findlay, Ohio
Posts: 5
Car: 91 Z-28
Engine: 350 TPI
Transmission: 700-R4
Axle/Gears: 2.73

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

Bump. I got the same question
z28frost91 is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 01:23 AM   #3
Senior Member
 
Saculia's Avatar
 
Join Date: Feb 2007
Location: St. Louis
Posts: 588
Car: currently a 91 G92.
Engine: 305TPI
Transmission: Borg Warner WC 5 speed
Axle/Gears: 3.42

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

I have been happy with mine. But then again, what are you trying to accomplish?
__________________
91 Formula WS6 305TPI
Transmission: WC T5
diff: limited slip 3.42:1
exhaust:dual cat with 3" magnaflow cat back
mods: fully rebuilt 305 bored .020 over and decked 0.020, comp cams xr258hr12, 22lbs bosch design 3 injectors, full wide band tune, eibach lowering springs - 1.5" drop, spring tech shocks and struts, slotted brake rotors, underdrive pulleys, MSD ignition, K&N air filter with air foil.
Saculia is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 01:42 AM   #4
Member
 
Join Date: Aug 2007
Location: Clarkston, MI
Posts: 181
Car: 1992 Firebird
Engine: 350 TPI
Transmission: 700R4 with B&M shift kit
Axle/Gears: 3.23 zexel 4th gen

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

I'm just trying to give my car a little better power but still keep it a daily driver. I only have a 2100rpm stall convertor and stock top-end so I don't want something that performs only at high rpm.

I'm planning on putting a 350 with four bolt mains in place of my block because it sounds like it spun a crank bearing or something. It might be a pre-86 block so I don't know if the stock one will fit back in it, and if it doesn't I might as well upgrade. I already have nitrous so my rear end and trans won't put up with too huge a power increase, like if I bought heads and an intake too. I don't have the money for them anyway right now.
Destructimus is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 01:53 AM   #5
Junior Member
 
Join Date: Sep 2009
Posts: 4

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

got stock cam for sale from lt1 lol interested?
1993camarolt1 is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 10:26 AM   #6
Junior Member
 
Join Date: Jul 2009
Location: Ontario, Canada
Posts: 94
Car: 86 IROC
Engine: 350 Vortec TPI
Transmission: 700R4
Axle/Gears: BW 3.27

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

If you want a good cam, I would stay within 204-210 intake, 206-214 exhaust duration about .430-.460 lift and a lobe separation of about 110-112. With the 110 it will have a bigger lope at idle and if you want to tune it will be a little bit harder. Those specs should work with a stock chip. The cam that I ran in my 305 before swapping to my current setup was a crane 114122, .423/.445 lift 204/214 duration and a 110 LSA. It worked real well and pushed the car down the quarter in 14.3 @ 95mph. If you are going to be swapping over to a 350 anyway, I would just stay with what you have and then build the other motor ($150-$250 you can invest in the new motor somewhere)
hrspwr is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 11:35 AM   #7
Senior Member
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: pittsburgh, Pa
Posts: 10,396
Car: 89 Iroc-z
Engine: Twin Turbo 401
Transmission: TH400
Axle/Gears: 4th gen 10 bolt 3.42's

Classifieds Rating: (16)
Send a message via AIM to Orr89RocZ
Re: What's a good cam for stock heads/TPI.

Crane has power max 214/220 cam that works well in these cars I think its the 2032 cam.

1.6 rockers on stock cam works well too... really like to get lift up abit higher than factory .415/.430 specs. heads only handle .470 or so... unless you try running offset locks and shim up the springs to raise the height over the guide boss... may beable to run .500-.510 depending.

To get guides cut down and setup wouldnt be a bad choice but you still have to take the heads off and do work to a stock casting thats not very good but better than other factory irons.

A more modern L98 grind with much more aggressive ramp rates will be a best bet. I'd do a 212/218 type cam on a 110-112 lsa. That should kick butt in an L98 and still run ok on stock tuning but will benefit from a good tune.
__________________

1989 Twin Turbo IROC-Z
"Twin Turbo 401 Buildup Pics "
"FQuick Garage"
9.86 at 141 mph 14psi, street tune
Orr89RocZ is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 11:56 AM   #8
Junior Member
 
Join Date: Jul 2009
Location: Ontario, Canada
Posts: 94
Car: 86 IROC
Engine: 350 Vortec TPI
Transmission: 700R4
Axle/Gears: BW 3.27

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

If your post was for a 350 then yes I would do what Orr89RocZ said. For some reason I thought it was for a 305
hrspwr is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 03:25 PM   #9
Senior Member
 
Saculia's Avatar
 
Join Date: Feb 2007
Location: St. Louis
Posts: 588
Car: currently a 91 G92.
Engine: 305TPI
Transmission: Borg Warner WC 5 speed
Axle/Gears: 3.42

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

Quote:
Originally Posted by Orr89RocZ View Post

A more modern L98 grind with much more aggressive ramp rates will be a best bet. I'd do a 212/218 type cam on a 110-112 lsa. That should kick butt in an L98 and still run ok on stock tuning but will benefit from a good tune.
These specs sound very similar to the comp xr264hr12, which is a great cam for a 350TPI.
No matter what you do, you are still going to need a tune to get the most out of the cam upgrade.
Saculia is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 03:57 PM   #10
Senior Member
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: pittsburgh, Pa
Posts: 10,396
Car: 89 Iroc-z
Engine: Twin Turbo 401
Transmission: TH400
Axle/Gears: 4th gen 10 bolt 3.42's

Classifieds Rating: (16)
Send a message via AIM to Orr89RocZ
Re: What's a good cam for stock heads/TPI.

Quote:
Originally Posted by hrspwr View Post
If your post was for a 350 then yes I would do what Orr89RocZ said. For some reason I thought it was for a 305
I just quick glanced his information under his screen name there and saw 350 TPI. 305 may want to be a touch smaller on the cam but those cams do work in 305's with some tuning.
Orr89RocZ is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 04:07 PM   #11
Member
 
Join Date: Aug 2007
Location: Clarkston, MI
Posts: 181
Car: 1992 Firebird
Engine: 350 TPI
Transmission: 700R4 with B&M shift kit
Axle/Gears: 3.23 zexel 4th gen

Classifieds Rating: (0)
Re: What's a good cam for stock heads/TPI.

Thanks for all the good info. I won't make my decision for probably quite some time as I haven't even really looked at the new block yet. I am pleased to hear that I won't necessarily need to burn a new chip though. I thought that it was practically a given I'd need to lol.
Destructimus is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 04:40 PM   #12
Senior Member
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: pittsburgh, Pa
Posts: 10,396
Car: 89 Iroc-z
Engine: Twin Turbo 401
Transmission: TH400
Axle/Gears: 4th gen 10 bolt 3.42's

Classifieds Rating: (16)
Send a message via AIM to Orr89RocZ
Re: What's a good cam for stock heads/TPI.

well it SHOULD be looked into. Adding exhaust/intake mods and cam will change characteristics in the tune. If it was MAF it could compensate somewhat but VE is precise calculation in speed density setups. I didnt realize you have 92 which is SD. May need to invest in some tuning stuff to get the fuel you need.

It may run ok without it but it will run 10x better with proper tune. Factory cars can gain with some tuning.
__________________

1989 Twin Turbo IROC-Z
"Twin Turbo 401 Buildup Pics "
"FQuick Garage"
9.86 at 141 mph 14psi, street tune
Orr89RocZ is offline vBGarage Page   Reply With Quote
Old 10-16-2009, 07:49 PM   #13
Senior Member
 
88fastgta's Avatar
 
Join Date: Mar 2007
Location: Raleigh, NC
Posts: 500
Car: 1988 Flame Red Trans am GTA
Engine: Forged 355 4 Bolt, Highflow Tpi
Transmission: Pro-built 700r4 with B&M shift kit
Axle/Gears: Borg Warner 3.27

Classifieds Rating: (7)
Re: What's a good cam for stock heads/TPI.

i really didnt feel much of an increase with the crane 2032 cam when i had it in my old l98.... im up to a gm hotcam now and i felt a big difference in that...
__________________


Click Link Below to View Mods

"My Super L98 lol"

Forged 355 4 bolt, ported SLP/edelbrock TPI, L98 headed, hotcammed engine

"Completely Assembled and built by My dad and I"

Tuned by PCM4less

dyno numbers and timeslips comming soon

"12 Second daily Driver GTA"





http://www.thirdgen.org/techboard/vb...=view&id=62362
88fastgta is offline vBGarage Page   Reply With Quote


Reply

Go Back   Third Generation F-Body Message Boards > Tech Boards > Tech / General Engine

Tags
1991, 350, 86, cam, camaro, cams, duration, engine, good, heads, motor, quater, specs, stock, tpi
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 






1982 Camaro '82 || 1983 Camaro '83 || 1984 Camaro '84 || 1985 Camaro '85 || 1986 Camaro '86 || 1987 Camaro '87 || 1988 Camaro '88 || 1989 Camaro '89 || 1990 Camaro '90 || 1991 Camaro '91 || 1992 Camaro '92


All times are GMT -5. The time now is 05:37 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0
All content copyright © 1997 - 2009 ThirdGen.org. All rights reserved. No part of this website may be reproduced without the expressed, documented, and written consent of ThirdGen.org's Administrators.