Good cam for my 305?
#1
Thread Starter
Member
Joined: Nov 2000
Posts: 212
Likes: 0
From: Ormond Beach, Florida
Car: '88 Firebird Formula
Engine: 360hp/417ft. lb. 350
Transmission: Pro-Built Street/Strip 700R4
Good cam for my 305?
I stopped by Crane a while ago, I'm going back today... they picked out the PowerMax 2030 for me... 700R4 and 3.23 rear end, and an LB9:
Application Series & Grind Number
Builds mid and upper RPM performance in 87 TPI engines with 5-speed trans. and all rear gear ratios. Also fits 88-89 305 engines w/5-speed and 2.73 or 3.27 rear gears for mid-range performance Adj. Fuel Pressure Regulator (99470-1) recommended for maximum performance. (50 state legal for listed applications, C.A.R.B. E.O. D-225-22) Basic RPM 1500-5000 PowerMax
2030
Cam Specifications
Degrees Duration @ .050 Int./Exh. Degrees Advertised Duration Int./Exh. Degree Lobe Separation Open/Close @.050" Cam Lift Int./Exh. Lash Hot Int./Exh. Gross Lift Int./Exh.
204
214 260
270 116 (14) 38
43 9 .000
.000 .429
.452
The tech (from last time) selected the 5-spd camshaft; I don't remeber if it was because I was already running the exhaust and headers, or what. They're going to be paired with World S/R Torquer 305's. I'm heading back out to Crane one more time today to talk to their tech guys again before I order all the parts (because I don't know which rocker arms and lifters I'll need; I also don't know if the springs the heads come with are enough for the cam bebcause I'm still new to working on the car). Anyways, enough rambling... just looking for any opinions/help. Oh... also, anybody know of any off the shelf chips that would go good with this combination? I know laying down the cash to get a custom chip is best but I'm running on a tight budget :/ Thanks.
Application Series & Grind Number
Builds mid and upper RPM performance in 87 TPI engines with 5-speed trans. and all rear gear ratios. Also fits 88-89 305 engines w/5-speed and 2.73 or 3.27 rear gears for mid-range performance Adj. Fuel Pressure Regulator (99470-1) recommended for maximum performance. (50 state legal for listed applications, C.A.R.B. E.O. D-225-22) Basic RPM 1500-5000 PowerMax
2030
Cam Specifications
Degrees Duration @ .050 Int./Exh. Degrees Advertised Duration Int./Exh. Degree Lobe Separation Open/Close @.050" Cam Lift Int./Exh. Lash Hot Int./Exh. Gross Lift Int./Exh.
204
214 260
270 116 (14) 38
43 9 .000
.000 .429
.452
The tech (from last time) selected the 5-spd camshaft; I don't remeber if it was because I was already running the exhaust and headers, or what. They're going to be paired with World S/R Torquer 305's. I'm heading back out to Crane one more time today to talk to their tech guys again before I order all the parts (because I don't know which rocker arms and lifters I'll need; I also don't know if the springs the heads come with are enough for the cam bebcause I'm still new to working on the car). Anyways, enough rambling... just looking for any opinions/help. Oh... also, anybody know of any off the shelf chips that would go good with this combination? I know laying down the cash to get a custom chip is best but I'm running on a tight budget :/ Thanks.
#2
Moderator
Joined: Apr 2000
Posts: 2,337
Likes: 2
Car: 87 IROC
Engine: modded LB9
Transmission: Pro Built 700R4
This is the cam that the their tech reccommended for me too-87 LB9 Auto. I felt that the cam was a little on the mild side and increased it to
214* 220*
.452 .465
2000-5500 rpm.
I also got a vigilante 5 disc converter with that cam and the difference was great compared to the penut cam that I had before hand. The idle a little rough for 5 minutes on a cold start-up but then it smooths right out.
My advice-go for the bigger cam and up your converter while you're at it.
Robert
214* 220*
.452 .465
2000-5500 rpm.
I also got a vigilante 5 disc converter with that cam and the difference was great compared to the penut cam that I had before hand. The idle a little rough for 5 minutes on a cold start-up but then it smooths right out.
My advice-go for the bigger cam and up your converter while you're at it.
Robert
#4
Moderator
Joined: Apr 2000
Posts: 2,337
Likes: 2
Car: 87 IROC
Engine: modded LB9
Transmission: Pro Built 700R4
Originally posted by 87 B4Z
im putting the 2032 cam in my 305 too.
RMK how does it sound at idle, can you tell by just hearing the exhaust note that it has a cam or is it just a smooth exhaust note?
im putting the 2032 cam in my 305 too.
RMK how does it sound at idle, can you tell by just hearing the exhaust note that it has a cam or is it just a smooth exhaust note?
#7
i know im postin like crazy but.. i have a ZZ4 ready to go.. i have 2 questions...
#1 what would be better, if i had my heads rebuilt and ported or get the sr torquers... and a second part to that one is.. if i get the sr's... do i need to get new roller rockers?
#2 if i keep my stock heads, do i need to enlarge the valve spring seat to fit springs for the cam or are there springs that will fit into the stock seat thats are good enuff for he cam?
#1 what would be better, if i had my heads rebuilt and ported or get the sr torquers... and a second part to that one is.. if i get the sr's... do i need to get new roller rockers?
#2 if i keep my stock heads, do i need to enlarge the valve spring seat to fit springs for the cam or are there springs that will fit into the stock seat thats are good enuff for he cam?
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#8
Thread Starter
Member
Joined: Nov 2000
Posts: 212
Likes: 0
From: Ormond Beach, Florida
Car: '88 Firebird Formula
Engine: 360hp/417ft. lb. 350
Transmission: Pro-Built Street/Strip 700R4
I don't have enough $$$ for the converter right now too... eventually. Thanks for the advice though. Next summer I think I'm gonna go with 3.73's (Crane tech recommended the 3.73's despite the book recommending this cam for 2.73's and 3.27's), SFC's and a strut tower brace. Maybe more depending on how much all that stuff runs
#9
Supreme Member
iTrader: (2)
Joined: Feb 2002
Posts: 1,141
Likes: 0
From: Nashville TN
Car: 1989 Trans Am
Engine: 355 HSR
Transmission: Pro-Built 700r4 w/ 3400 converter
Axle/Gears: 10 bolt w/ 3.42 gears
Originally posted by MILT
I have a Comp cam (non-roller) in my 305.
Specs are 210/220, .500/.510. It has helped me break into 13s with little else.
MILT
I have a Comp cam (non-roller) in my 305.
Specs are 210/220, .500/.510. It has helped me break into 13s with little else.
MILT
#10
Supreme Member
Joined: Jan 2003
Posts: 1,931
Likes: 1
From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Originally posted by bigals87z28
i know im postin like crazy but.. i have a ZZ4 ready to go.. i have 2 questions...
#1 what would be better, if i had my heads rebuilt and ported or get the sr torquers... and a second part to that one is.. if i get the sr's... do i need to get new roller rockers?
#2 if i keep my stock heads, do i need to enlarge the valve spring seat to fit springs for the cam or are there springs that will fit into the stock seat thats are good enuff for he cam?
i know im postin like crazy but.. i have a ZZ4 ready to go.. i have 2 questions...
#1 what would be better, if i had my heads rebuilt and ported or get the sr torquers... and a second part to that one is.. if i get the sr's... do i need to get new roller rockers?
#2 if i keep my stock heads, do i need to enlarge the valve spring seat to fit springs for the cam or are there springs that will fit into the stock seat thats are good enuff for he cam?
#11
i got the specs around here somewhere... ill edit this with the info
EDIT: here is the link for the specs. post here, i wana get more people in this thread so they can answer our questions...
https://www.thirdgen.org/techbb2/sho...55#post1121755
EDIT: here is the link for the specs. post here, i wana get more people in this thread so they can answer our questions...
https://www.thirdgen.org/techbb2/sho...55#post1121755
Last edited by bigals87z28; 01-30-2003 at 08:23 PM.
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