Dyno results: EPS cam w/ stock 243 heads.
09-30-2010, 06:28 PM
#24
Like I said, he was really conservative tuning my car, played too safe, IMO.
My valve springs are upgraded along w/ pushrods and the rockers' trunion. He was well aware of those but yet he decided to stick with his plan.
09-30-2010, 08:28 PM
#25
TECH Enthusiast
iTrader: (4)
Join Date: Jul 2004
Location: GA
Posts: 720
Likes: 0
Received 0 Likes
on
0 Posts
Because you also cannot compare a stock grind cam to a aftermarket cam even with the exact same set of stock 243 heads.
I agree, but 60rwhp more?
I have seen many 224/224 cam cars with 243 heads,, LT's, LS6 intake, stock 3.42 gears & 6-speed lay down 430+RWHP over the years.
I don't spend a lot of time in dyno rooms, but that still seems REALLY high for a cam with 222 duration
These newer EPS cams have been laying down awsome numbers & E.T.'s
I agree, but 60rwhp more?
I have seen many 224/224 cam cars with 243 heads,, LT's, LS6 intake, stock 3.42 gears & 6-speed lay down 430+RWHP over the years.
I don't spend a lot of time in dyno rooms, but that still seems REALLY high for a cam with 222 duration
These newer EPS cams have been laying down awsome numbers & E.T.'s
10-01-2010, 01:02 AM
#26
Staging Lane
Join Date: Jun 2010
Location: SOMEWHERE !
Posts: 88
Likes: 0
Received 0 Likes
on
0 Posts
Check you clutch buddy 
It happened to me .. it was slipping and caused my car reads 350 on the same cam but 115lsa and PRC 5.3 2.5 59cc
I changed the clutch to Spec 3+ & Flywheel .. break-in time and took it to dyno again .. 430 rwhp / 410 rwtq ..
The dyno printer was not working but I will post it once I got it in new thread
EPS/Patrick G 4 LIFE
It happened to me .. it was slipping and caused my car reads 350 on the same cam but 115lsa and PRC 5.3 2.5 59cc
I changed the clutch to Spec 3+ & Flywheel .. break-in time and took it to dyno again .. 430 rwhp / 410 rwtq ..
The dyno printer was not working but I will post it once I got it in new thread
EPS/Patrick G 4 LIFE
Last edited by Stealth Camaro; 02-16-2011 at 06:08 AM.
10-01-2010, 03:40 AM
#27
Check you clutch buddy
It happened to me .. it was slipping and caused my car reads 350 on the same cam but 115lsa and PRC 5.3 2.5 59cc
I changed the clutch to Spec 3+ & Flywheel .. break-in time and took it to dyno again .. 449 rwhp / 429 rwtq ..
The dyno printer was not working but I will post it once I got it in new thread
EPS/Patrick G 4 LIFE
It happened to me .. it was slipping and caused my car reads 350 on the same cam but 115lsa and PRC 5.3 2.5 59cc
I changed the clutch to Spec 3+ & Flywheel .. break-in time and took it to dyno again .. 449 rwhp / 429 rwtq ..
The dyno printer was not working but I will post it once I got it in new thread
EPS/Patrick G 4 LIFE
Here is my other/last video...
The car made 440 HP, 489 HP and then finally 444 HP.
http://www.youtube.com/watch?v=Ioi_P2DYD5k
10-01-2010, 06:16 AM
#28
12 Second Club
iTrader: (10)
Join Date: Jan 2009
Location: 5.0
Posts: 1,302
Likes: 0
Received 0 Likes
on
0 Posts
maybe those 444 are corrected numbers? I'm thinking it might be worth it to datalog and send it to someone like frost to fix that rich condition unless you can do that yourself
10-01-2010, 08:31 AM
#32
12 Second Club
iTrader: (10)
Join Date: Jan 2009
Location: 5.0
Posts: 1,302
Likes: 0
Received 0 Likes
on
0 Posts
i think you should be ok without wideband for now because you can convert you mV to A/F according to the A/F at RPM on your dyno sheet. so you see what rpm your getting 12.8 on your dyno sheet. then when you data log you check that rpm at wot in your 3 gears, record the mVs and take the average. Wouldn't that work for now?
10-01-2010, 08:33 AM
#33
I have to add something to maybe question my tuner on things...
I mentioned to him that 360 rwhp on heads and cam LS1 is pretty low and it should put down 420-430ish at the wheels. There are guys back in the states putting down with those numbers. His reply? Well, they were on happy dynos. 5.7s should only dyno 360ish rwhp with these mods.
I might have to retract my statement on he knows LS engines well. lol.
I mentioned to him that 360 rwhp on heads and cam LS1 is pretty low and it should put down 420-430ish at the wheels. There are guys back in the states putting down with those numbers. His reply? Well, they were on happy dynos. 5.7s should only dyno 360ish rwhp with these mods.
I might have to retract my statement on he knows LS engines well. lol.
10-01-2010, 08:41 AM
#34
i think you should be ok without wideband for now because you can convert you mV to A/F according to the A/F at RPM on your dyno sheet. so you see what rpm your getting 12.8 on your dyno sheet. then when you data log you check that rpm at wot in your 3 gears, record the mVs and take the average. Wouldn't that work for now?
10-01-2010, 09:04 AM
#35
12 Second Club
iTrader: (10)
Join Date: Jan 2009
Location: 5.0
Posts: 1,302
Likes: 0
Received 0 Likes
on
0 Posts
im not a tuner. i just thought the 02 sensors in the car worked at WOT.
yeah man stock LS6s with a underdrive pulley make 360rwhp all day.
im sorry your stuck there with only one tuner but honestly, you were lucky to even find him. now just finish up the tune and your golden. keep your head up you'll get there.
yeah man stock LS6s with a underdrive pulley make 360rwhp all day.
im sorry your stuck there with only one tuner but honestly, you were lucky to even find him. now just finish up the tune and your golden. keep your head up you'll get there.
10-01-2010, 07:38 PM
#40
On The Tree
Join Date: Apr 2008
Location: Camano Island Wa
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Hey Bene: My 2cents
Tuning issues aside, you already said in another thread that you could really feel this cam pull.
When I install my eps 222/226 113 I'll have your same setup but on stock 241s. Geoff told me I could expect around 380rwhp give or take (just for reference, I'm not holding him to that number)
From watching your clip, it seems to me the issue is reconciling 1) the dyno numbers with what you would see on a dyno back in the US, and 2) the inconsistency in back to back runs 440-480-360...??? Clutch?
Tuning issues aside, you already said in another thread that you could really feel this cam pull.
When I install my eps 222/226 113 I'll have your same setup but on stock 241s. Geoff told me I could expect around 380rwhp give or take (just for reference, I'm not holding him to that number)
From watching your clip, it seems to me the issue is reconciling 1) the dyno numbers with what you would see on a dyno back in the US, and 2) the inconsistency in back to back runs 440-480-360...??? Clutch?