Help! can't decide on a cam
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Help! can't decide on a cam
http://cgi.ebay.com/ebaymotors/ws/eB...3AIT&viewitem=
THIS CAMSHAFT HAS NO FUEL PUMP LOBE. You are bidding on a ROLLER LT4 hotcam profile camshaft for Camaros, Corvettes, Firebirds. Can be used in the LT1. Specifications 219/228 @.050 492/492 with 1.5 rockers and 525/525 with 1.6 rockers.Lobe Seperation is 112 degrees This cam pulls very good on low end but is great from low midrange to top end.
or
http://cgi.ebay.com/ebaymotors/ws/eB...3AIT&viewitem=
YOU ARE BIDDING ON A HYDRAULIC ROLLER CAMSHAFT THAT WILL FIT THE 1987 UP CHEVYS AND FIREBIRDS THAT HAVE THE HYDRAULIC ROLLER DESIGN. THESE CAMS ARE INSPECTED,CLEANED, STRAIGHTENED AND THEN GROUND TO THE SPECIFICATIONS OF
.495 INTAKE LIFT / DUR.@.050 .218 DEGREES
.502 EXHAUST LIFT / DUR. @.050 .224 DEGREES
LOBE SEPERATION IS II0 DEGREES 112 LOBE SEPERATION AVAILABLE UPON REQUEST
THIS CAM WORKS WITH THE STOCK TORQUE CONVERTER. IF APPLICATION IS FOR LT1/LT4 SPECIFY IF LONG DOWEL PIN IS NEEDED. CAM IS AVAILABLE WITHOUT FUEL PUMP LOBE. THIS CAM LIKES A STAGE ONE CHIP. VERY STREETABLE AND A GOOD ADDITION TO ANY LT1/LT4 POWER PLANT.
VEH Specs: 1991 vette, ADS Super Chip, SLP ported runners, TPIS Bigmouth intake, ported intake, Accel ignition, Bosch III injectors 19#, AFPR, Flow master cat back. plan on replacing springs maybe 1.5 rollers .. do not want to pull heads or replace converter ... and long tubes and 307 gears are in the future plans
THIS CAMSHAFT HAS NO FUEL PUMP LOBE. You are bidding on a ROLLER LT4 hotcam profile camshaft for Camaros, Corvettes, Firebirds. Can be used in the LT1. Specifications 219/228 @.050 492/492 with 1.5 rockers and 525/525 with 1.6 rockers.Lobe Seperation is 112 degrees This cam pulls very good on low end but is great from low midrange to top end.
or
http://cgi.ebay.com/ebaymotors/ws/eB...3AIT&viewitem=
YOU ARE BIDDING ON A HYDRAULIC ROLLER CAMSHAFT THAT WILL FIT THE 1987 UP CHEVYS AND FIREBIRDS THAT HAVE THE HYDRAULIC ROLLER DESIGN. THESE CAMS ARE INSPECTED,CLEANED, STRAIGHTENED AND THEN GROUND TO THE SPECIFICATIONS OF
.495 INTAKE LIFT / DUR.@.050 .218 DEGREES
.502 EXHAUST LIFT / DUR. @.050 .224 DEGREES
LOBE SEPERATION IS II0 DEGREES 112 LOBE SEPERATION AVAILABLE UPON REQUEST
THIS CAM WORKS WITH THE STOCK TORQUE CONVERTER. IF APPLICATION IS FOR LT1/LT4 SPECIFY IF LONG DOWEL PIN IS NEEDED. CAM IS AVAILABLE WITHOUT FUEL PUMP LOBE. THIS CAM LIKES A STAGE ONE CHIP. VERY STREETABLE AND A GOOD ADDITION TO ANY LT1/LT4 POWER PLANT.
VEH Specs: 1991 vette, ADS Super Chip, SLP ported runners, TPIS Bigmouth intake, ported intake, Accel ignition, Bosch III injectors 19#, AFPR, Flow master cat back. plan on replacing springs maybe 1.5 rollers .. do not want to pull heads or replace converter ... and long tubes and 307 gears are in the future plans
Last edited by ch@0s; Nov 10, 2008 at 08:04 PM.
Burning Brakes
Joined: Jul 2006
Posts: 1,080
Likes: 2
From: Pittsburgh PA
you wont notice too much of a difference with either cam. Hotcam is a nice proven cam but so is that other grind which looks to be the CC502.
IF it was me, i'd favor the 110 lsa 218/224 cam for a slightly better top end to go with your runners, but LT4 will have good top end regardless so, pick one and be happy
may i suggest 24lb injectors to be on the safer side ? 19's will work but 24's wont have to work as hard. Also i see you dont want to change converter but that combo will love 2800 stall. Its probly the best bang for the buck mod out there next to nitrous
IF it was me, i'd favor the 110 lsa 218/224 cam for a slightly better top end to go with your runners, but LT4 will have good top end regardless so, pick one and be happy
may i suggest 24lb injectors to be on the safer side ? 19's will work but 24's wont have to work as hard. Also i see you dont want to change converter but that combo will love 2800 stall. Its probly the best bang for the buck mod out there next to nitrous
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
you wont notice too much of a difference with either cam. Hotcam is a nice proven cam but so is that other grind which looks to be the CC502.
IF it was me, i'd favor the 110 lsa 218/224 cam for a slightly better top end to go with your runners, but LT4 will have good top end regardless so, pick one and be happy
may i suggest 24lb injectors to be on the safer side ? 19's will work but 24's wont have to work as hard. Also i see you dont want to change converter but that combo will love 2800 stall. Its probly the best bang for the buck mod out there next to nitrous
IF it was me, i'd favor the 110 lsa 218/224 cam for a slightly better top end to go with your runners, but LT4 will have good top end regardless so, pick one and be happy
may i suggest 24lb injectors to be on the safer side ? 19's will work but 24's wont have to work as hard. Also i see you dont want to change converter but that combo will love 2800 stall. Its probly the best bang for the buck mod out there next to nitrous
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
I prefer the cam with the wider Lobe Separation Angle. It'll make tuning easier and also give a broader power range - not as peaky as the cam with a 110.
I suggest you email with PCMFORLESS for their recommendation on both which cam to use AND the injectors to use. It'll be best with a PCM re-program which'll probably include a slight raising of the idle speed, ignition and fuel tweaks and tweaks to the temp the fan(s) come; on among others.
Just my thoughts.
Jake
I suggest you email with PCMFORLESS for their recommendation on both which cam to use AND the injectors to use. It'll be best with a PCM re-program which'll probably include a slight raising of the idle speed, ignition and fuel tweaks and tweaks to the temp the fan(s) come; on among others.
Just my thoughts.
Jake
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
I prefer the cam with the wider Lobe Separation Angle. It'll make tuning easier and also give a broader power range - not as peaky as the cam with a 110.
I suggest you email with PCMFORLESS for their recommendation on both which cam to use AND the injectors to use. It'll be best with a PCM re-program which'll probably include a slight raising of the idle speed, ignition and fuel tweaks and tweaks to the temp the fan(s) come; on among others.
Just my thoughts.
Jake
I suggest you email with PCMFORLESS for their recommendation on both which cam to use AND the injectors to use. It'll be best with a PCM re-program which'll probably include a slight raising of the idle speed, ignition and fuel tweaks and tweaks to the temp the fan(s) come; on among others.
Just my thoughts.
Jake
Drifting
Joined: Aug 2007
Posts: 1,672
Likes: 0
From: Hereford AZ
FUNNY!! I've been trying to decide between the to cams myself...LOL... Did you make a choice yet? I emailed willhoitescams, and listed my mods and ask him which one he recommends for my 92 LT1. This is the responce I got
"A set of lifters run $100.00, springs are $80.00 a set.
Thanks
David"
I have a new set of 1.6 full roller self align rockers that I will install with which ever cam I decide on. I know the hotcam is proven over and over, but then like they say GO BIG OR GO HOME...LOL... Let me know
Thanks, Bob
"A set of lifters run $100.00, springs are $80.00 a set.
Thanks
David"
I have a new set of 1.6 full roller self align rockers that I will install with which ever cam I decide on. I know the hotcam is proven over and over, but then like they say GO BIG OR GO HOME...LOL... Let me know
Thanks, Bob
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
FUNNY!! I've been trying to decide between the to cams myself...LOL... Did you make a choice yet? I emailed willhoitescams, and listed my mods and ask him which one he recommends for my 92 LT1. This is the responce I got
"A set of lifters run $100.00, springs are $80.00 a set.
Thanks
David"
I have a new set of 1.6 full roller self align rockers that I will install with which ever cam I decide on. I know the hotcam is proven over and over, but then like they say GO BIG OR GO HOME...LOL... Let me know
Thanks, Bob
"A set of lifters run $100.00, springs are $80.00 a set.
Thanks
David"
I have a new set of 1.6 full roller self align rockers that I will install with which ever cam I decide on. I know the hotcam is proven over and over, but then like they say GO BIG OR GO HOME...LOL... Let me know
Thanks, Bob
Last edited by ch@0s; Nov 13, 2008 at 09:41 PM.
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Well, being 63 years old and having been screwing on these suckas for over 40 years I've adopted two sort of Rules Of Thumb:
I was always happier with a cam that had a LITTLE LESS DURATION than optimum than one that had a LITTLE TOO MUCH. In other words, for example, I was happier with one with 224 @ .050 than one with 230.
Dealing with FI engines I was always happier with slightly too wide a LSA than slightly too narrow. So, for me, 113 made me happier than 110.
So I keep the duration on the short side and the LSA wide.
But that's just me.
Jake
I was always happier with a cam that had a LITTLE LESS DURATION than optimum than one that had a LITTLE TOO MUCH. In other words, for example, I was happier with one with 224 @ .050 than one with 230.
Dealing with FI engines I was always happier with slightly too wide a LSA than slightly too narrow. So, for me, 113 made me happier than 110.
So I keep the duration on the short side and the LSA wide.
But that's just me.
Jake
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Well, being 63 years old and having been screwing on these suckas for over 40 years I've adopted two sort of Rules Of Thumb:
I was always happier with a cam that had a LITTLE LESS DURATION than optimum than one that had a LITTLE TOO MUCH. In other words, for example, I was happier with one with 224 @ .050 than one with 230.
Dealing with FI engines I was always happier with slightly too wide a LSA than slightly too narrow. So, for me, 113 made me happier than 110.
So I keep the duration on the short side and the LSA wide.
But that's just me
Jake
I was always happier with a cam that had a LITTLE LESS DURATION than optimum than one that had a LITTLE TOO MUCH. In other words, for example, I was happier with one with 224 @ .050 than one with 230.
Dealing with FI engines I was always happier with slightly too wide a LSA than slightly too narrow. So, for me, 113 made me happier than 110.
So I keep the duration on the short side and the LSA wide.
But that's just me
Jake
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
If it were my car I'd go for a higher stall converter before installing a baby cam. That said,
Jake has a good point. But I ended up going in the opposite direction, I pulled a cam with these specs
Duration Advertised: 280° Intake / 288° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.6 Rockers: .576'' Intake / .570'' Exhaust
Lobe Separation Angle: 113°
and installed one with more lift and a tighter LSA (duration's about the same). I thought I loved the previous cam but I was wrong, I love my current cam. It is docile around town but when the throttle is mashed its a screaming monster.
However, my cam is a custom cam from AI that Ron and Phil had done to match the rest of my combo. An 11:1 engine probably would not like my big hairy cam whereas my 12+:1 compression 355 likes it.
Mike
Well, being 63 years old and having been screwing on these suckas for over 40 years I've adopted two sort of Rules Of Thumb:
I was always happier with a cam that had a LITTLE LESS DURATION than optimum than one that had a LITTLE TOO MUCH. In other words, for example, I was happier with one with 224 @ .050 than one with 230.
Dealing with FI engines I was always happier with slightly too wide a LSA than slightly too narrow. So, for me, 113 made me happier than 110.
So I keep the duration on the short side and the LSA wide.
But that's just me.
Jake
I was always happier with a cam that had a LITTLE LESS DURATION than optimum than one that had a LITTLE TOO MUCH. In other words, for example, I was happier with one with 224 @ .050 than one with 230.
Dealing with FI engines I was always happier with slightly too wide a LSA than slightly too narrow. So, for me, 113 made me happier than 110.
So I keep the duration on the short side and the LSA wide.
But that's just me.
Jake
Jake has a good point. But I ended up going in the opposite direction, I pulled a cam with these specs
Duration Advertised: 280° Intake / 288° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.6 Rockers: .576'' Intake / .570'' Exhaust
Lobe Separation Angle: 113°
and installed one with more lift and a tighter LSA (duration's about the same). I thought I loved the previous cam but I was wrong, I love my current cam. It is docile around town but when the throttle is mashed its a screaming monster.
However, my cam is a custom cam from AI that Ron and Phil had done to match the rest of my combo. An 11:1 engine probably would not like my big hairy cam whereas my 12+:1 compression 355 likes it.
Mike
Last edited by aboatguy; Nov 14, 2008 at 01:18 PM.
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
If it were my car I'd go for a higher stall converter before installing a baby cam. That said,
Jake has a good point. But I ended up going in the opposite direction, I pulled a cam with these specs
Duration Advertised: 280° Intake / 288° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.6 Rockers: .576'' Intake / .570'' Exhaust
Lobe Separation Angle: 113°
and installed one with more lift and a tighter LSA (duration's about the same). I thought I loved the previous cam but I was wrong, I love my current cam. It is docile around town but when the throttle is mashed its a screaming monster.
However, my cam is a custom cam from AI that Ron and Phil had done to match the rest of my combo. An 11:1 engine probably would not like my big hairy cam whereas my 12+:1 compression 355 likes it.
Mike
Jake has a good point. But I ended up going in the opposite direction, I pulled a cam with these specs
Duration Advertised: 280° Intake / 288° Exhaust
Duration @ .050'' Lift: 230° Intake / 236° Exhaust
Valve Lift w/1.6 Rockers: .576'' Intake / .570'' Exhaust
Lobe Separation Angle: 113°
and installed one with more lift and a tighter LSA (duration's about the same). I thought I loved the previous cam but I was wrong, I love my current cam. It is docile around town but when the throttle is mashed its a screaming monster.
However, my cam is a custom cam from AI that Ron and Phil had done to match the rest of my combo. An 11:1 engine probably would not like my big hairy cam whereas my 12+:1 compression 355 likes it.
Mike
Been there done that, I’m getting older and want haste free drivability. I just sold my truck I sunk 20k into because it had no street manners .. I drove it 300 miles in 2 years it sat in my garage looking pretty. It hauled azz but got hot when the a/c was turned on and got 11 mpg so I could not take it for a nice country drive and still pay my mortgage. I sold it for pennies and bought this Corvette. I intend on making this a very street able car. I plan on spending time cruising and tooling with my son. This cam will do just fine.
Thread Starter
Le Mans Master
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Race Director
Joined: Jan 2005
Posts: 10,641
Likes: 13
From: Slidell Louisiana
Been there done that, I’m getting older and want haste free drivability. I just sold my truck I sunk 20k into because it had no street manners .. I drove it 300 miles in 2 years it sat in my garage looking pretty. It hauled azz but got hot when the a/c was turned on and got 11 mpg so I could not take it for a nice country drive and still pay my mortgage. I sold it for pennies and bought this Corvette. I intend on making this a very street able car. I plan on spending time cruising and tooling with my son. This cam will do just fine.
On my initial post I started with:
If it were my car I'd go for a higher stall converter before installing a baby cam.
Since we have locking converters there really is no mileage hit with a high quality locking stall converter. Lower gears are great but they have a mileage hit.
Good luck with your build
Mike
Burning Brakes
Joined: Jul 2006
Posts: 1,080
Likes: 2
From: Pittsburgh PA
i got 3600 in mine and once it locks up at whatever mph i program it to, it drives like a bone stock car
the only real mileage hits are accelerating from stops and the converter isnt locked up yet. your rpms are abit higher than with a stock converter. its not bad at all and not really that high, but it is abit higher than a stock converter
also going up hills slower than the mph the converter will lockup at. That sucks when your buzzing 3000 rpm on a 3600 stall goin up a hill stuck behind a slow truck/car going 30 when you have your converter setup to lock at 40. So i have mine set to lock at 30 now and have no problems
the only real mileage hits are accelerating from stops and the converter isnt locked up yet. your rpms are abit higher than with a stock converter. its not bad at all and not really that high, but it is abit higher than a stock converter
also going up hills slower than the mph the converter will lockup at. That sucks when your buzzing 3000 rpm on a 3600 stall goin up a hill stuck behind a slow truck/car going 30 when you have your converter setup to lock at 40. So i have mine set to lock at 30 now and have no problems
Last edited by Orr89rocz; Nov 14, 2008 at 11:36 PM.
