LSL Lobes (LOL lobes)
#23
The new lobes like the XFI and LSK have not performed well on my dyno. The XER lobes have out powered them everytime, and even some softer lobes have done better than the XER lobes. It sells parts, but I don't feel it will make more power. Anyone remember the TR224? It was very similiar to a XE lobe and made killer power. Ever seen the specs on Futrals Cam Motion stuff? Very similiar to the XE stuff, and even a lil softer on the exhaust.
#24
The new lobes like the XFI and LSK have not performed well on my dyno. The XER lobes have out powered them everytime, and even some softer lobes have done better than the XER lobes. It sells parts, but I don't feel it will make more power. Anyone remember the TR224? It was very similiar to a XE lobe and made killer power. Ever seen the specs on Futrals Cam Motion stuff? Very similiar to the XE stuff, and even a lil softer on the exhaust.
You know the funny thing bro-the guys that want the LSK lobes want to run comp 918's or don't want to spend the time checking installed height or seat pressure on there springs nor do they want to spend the money on Morels and can't see the purpose of the .110 wall thick pushrod?
#25
#26
The new lobes like the XFI and LSK have not performed well on my dyno. The XER lobes have out powered them everytime, and even some softer lobes have done better than the XER lobes. It sells parts, but I don't feel it will make more power. Anyone remember the TR224? It was very similiar to a XE lobe and made killer power. Ever seen the specs on Futrals Cam Motion stuff? Very similiar to the XE stuff, and even a lil softer on the exhaust.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
#27
That's a pretty bold statement. Do you have any dyno sheets to back that up? I've got lots of dyno sheets that will show you that the XFI and LSK lobes make better power when properly set up. Sadly, most people that want really aggressive lobes are not prepared to set up the valvetrain properly to handle them. When this is the case, XE high lift lobes are a no brainer.
I agree with you there Patrick and that's where the problem is-the folks that want these lobes, don't spend the time setting up the valvetrian.
On the FI motors we've been building we stay away from the XE-R lobes as wee need to shim up the springs for extra seat pressure as the boost takes some of that way-then they pull cleanly past 7000 rpm.
#28
I agree with you there Patrick and that's where the problem is-the folks that want these lobes, don't spend the time setting up the valvetrian.
On the FI motors we've been building we stay away from the XE-R lobes as wee need to shim up the springs for extra seat pressure as the boost takes some of that way-then they pull cleanly past 7000 rpm.
On the FI motors we've been building we stay away from the XE-R lobes as wee need to shim up the springs for extra seat pressure as the boost takes some of that way-then they pull cleanly past 7000 rpm.
Combo is the name of the game and no you do not need to shim all springs for XE-R, just if you are using springs that are too borderline and you need to increase open pressure capabilities.
And i have to side with Patrick when i say that you'll have a hard time convincing me that a 224/224 XE lobed cam will match a more agressive same duration lobe in a properly balanced combo. (just an exemple)
I've mixed XFI and XE-R with awsome results, or LSK and XFI (exhst).
The magic is in a matched balanced combo.
#29
Yeah but again this is due to improper valvetrain matching. Build a light valvetrain, match seat pressures to cam requirements and it will pull safely beyond your block capability.
Combo is the name of the game and no you do not need to shim all springs for XE-R, just if you are using springs that are too borderline and you need to increase open pressure capabilities.
And i have to side with Patrick when i say that you'll have a hard time convincing me that a 224/224 XE lobed cam will match a more agressive same duration lobe in a properly balanced combo. (just an exemple)
I've mixed XFI and XE-R with awsome results, or LSK and XFI (exhst).
The magic is in a matched balanced combo.
Combo is the name of the game and no you do not need to shim all springs for XE-R, just if you are using springs that are too borderline and you need to increase open pressure capabilities.
And i have to side with Patrick when i say that you'll have a hard time convincing me that a 224/224 XE lobed cam will match a more agressive same duration lobe in a properly balanced combo. (just an exemple)
I've mixed XFI and XE-R with awsome results, or LSK and XFI (exhst).
The magic is in a matched balanced combo.
We like to keep lift at no more .600, for the guys who want all out-we stick in Ti intake valves and spin them up to 8000 with hydrauilic roller.
#30
Since this thread has already been I'm going off on a slight tangent. Anyone have weights of commonly used valve spring parts? I searched, but all I've found is what PREDATOR-Z posted a long time ago that a 918 ti retainer weighs 8 grams and a PRC dual ti weighs 11 grams. That's kind of on topic...
#31
#32
This Thread Reminds Me Soo Much Of The Thread About A Year Ago About How Big Cams Dont Make Power....
My Point Was There And Is Again Now... Everything Has Tradeoffs, Big Cams With Agressive Lobe Desgins Do Make More Power
But!!!!!
The More Agressive You Go With Any Race Part The More Tempermential It Gets... This Is The Fundemental Concept Of Hot Rodding "or Pushing It To The Edge"
Way Too Often People Take Their Daily Driven Car Slap A Huge Cam In It And Expect It To Run Like Its Stock....
News Flash Guys!!! If You Want A Stock Running Car Then You Need To Keep It Stock.. Gm Didnt Put Shitty Cams In Our Cars From The Factory.. Gm Put Cams That Were Based Mostly On Reliablity
Bottom Line, When You Bust Out The Donky Dick Cam Be Prepared To Spend Some Cash On Supporting Mods
My Point Was There And Is Again Now... Everything Has Tradeoffs, Big Cams With Agressive Lobe Desgins Do Make More Power
But!!!!!
The More Agressive You Go With Any Race Part The More Tempermential It Gets... This Is The Fundemental Concept Of Hot Rodding "or Pushing It To The Edge"
Way Too Often People Take Their Daily Driven Car Slap A Huge Cam In It And Expect It To Run Like Its Stock....
News Flash Guys!!! If You Want A Stock Running Car Then You Need To Keep It Stock.. Gm Didnt Put Shitty Cams In Our Cars From The Factory.. Gm Put Cams That Were Based Mostly On Reliablity
Bottom Line, When You Bust Out The Donky Dick Cam Be Prepared To Spend Some Cash On Supporting Mods
#33
I think the haters in here need to keep an open mind and stop making assumptions that everyone who moves to a more aggressive lobe is simply throwing caution to the wind. I don't think anyone on here is denying how good the XE/XE-R lobe family's are. Without a doubt they are proven.
My previous cam was ground on the XE-R/XE and I loved it. However, My AFR 225's were recently reworked for additional flow, upgraded to the better springs, milled for higher static compression and hollow intake valves installed. I need a slighly more aggressive cam to take advantage of this and honestly the specs were not available in either the XE or XE-R lobes, so I switched to the XFI lobes. For those who don't know, the XFI lobes have a separate set of lobes for intake and exhaust, with the exhaust being softer. Oddly enough the intake lobe I picked is slightly softer than my previous XE-R intake lobe and XFI exhaust lobe is slightly more aggressive than original exhaust lobe. Lift was only increased by .013.
My previous cam was ground on the XE-R/XE and I loved it. However, My AFR 225's were recently reworked for additional flow, upgraded to the better springs, milled for higher static compression and hollow intake valves installed. I need a slighly more aggressive cam to take advantage of this and honestly the specs were not available in either the XE or XE-R lobes, so I switched to the XFI lobes. For those who don't know, the XFI lobes have a separate set of lobes for intake and exhaust, with the exhaust being softer. Oddly enough the intake lobe I picked is slightly softer than my previous XE-R intake lobe and XFI exhaust lobe is slightly more aggressive than original exhaust lobe. Lift was only increased by .013.
#34
#35
#37
I hope that cam's in a big motor.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
#39
The valves in my PRC 5.3's were 98g(I) and 89g(E) I didn't weight my springs (but will try before they go on), but their PSI duals that have 220 on the seat and 550 open, with PRC retainers.
#40
I think a few people have mentioned the magic word here... Combination. I have some camshafts that love particular heads. The TR 224 cam is hard to beat in almost any combination and I still sell loads of them. But for someone who wants 435-450RWHP in an auto with great daily driver manners, our ExTReme 227 and a set of ET 215's are a match made in heaven. i have full weight f-body verts running mid 11's at 117-119 in STREET trim with this combo. Vig 3200, 3.73's and a set of Nittos... that cam has LSK's on a 116LSA... VERY tame combo with awesome driveability. This was simply not possible back in the day.
Shane
Shane