Dyno numbers
Race Director
Joined: May 2003
Posts: 10,749
Likes: 41
I must agree, those are some very nice #'s for stock cubes. I used to hang around a dyno a few years ago when I was on my lunch break.
I have never seen stock cubes with this kind of rwtq, but anything is possible. Maybe the combo's I saw had dart heads on them, lol.
If you ever run it at the track, that will validate any issues with the dyno "if there is any at all" with your trap mph.
With power like that, I don't see why you would be pushing 120 mph.
Goodjob!
I am on dialup so your video is going to take me forever to download.
I have never seen stock cubes with this kind of rwtq, but anything is possible. Maybe the combo's I saw had dart heads on them, lol.
If you ever run it at the track, that will validate any issues with the dyno "if there is any at all" with your trap mph.
With power like that, I don't see why you would be pushing 120 mph.
Goodjob!
I am on dialup so your video is going to take me forever to download.
Le Mans Master
Joined: Jul 2000
Posts: 5,012
Likes: 5
From: OKC OK
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 3,178
Likes: 5
From: Daleville Indiana
St. Jude Donor '08
I've got a dynojet near me but I made these numbers at a Vette dyno day. An LS7 made 450 and a H/C LS3 made 443. So if it does read high I'm still make great numbers for a 350. If you wants some dynojet numbers I'll take Pay Pal donations to make it happen faster.
Pro
Joined: Apr 2008
Posts: 542
Likes: 0
From: middle of Illinois
Johnnymac (or anyone else), where are all the dynos in central illinois? I used to spend some time at a place called Midwest Performance Headquarters in Normal, but they packed up shop and moved to Florida. Several years ago, there was a place in Peoria out by Pioneer Parkway called R&T's Unlimited, but the numbers I had for them don't ring anymore. I drove by the spot where it used to be, and there are several fresh tire marks in the parking lot, and two racing trailers parked outside, but no signs or any other identification on the building, so I'm not sure if they're still around anymore either.
Anyway, I'm looking for somewhere to make a couple passes. I want to see if I need to have any changes made to the tune. I'm pretty sure it's shifting a couple hundred RPM too soon, and I'd like to check the Air/Fuel ratio through the RPM range.
Anyway, I'm looking for somewhere to make a couple passes. I want to see if I need to have any changes made to the tune. I'm pretty sure it's shifting a couple hundred RPM too soon, and I'd like to check the Air/Fuel ratio through the RPM range.
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
I gave seen many stock LS7 runs and the range is like 445 - 460.....with the bulk of them smack in the 450's. This is bonestock including the restrictive OEM intake filter etc.
And 443 for a H/C LS3 is also quite light but who knows how aggressive the package was and state of tune but it looks to me like you were on a very representative dyno.
Want to really back this up....go hit the local track on a cool evening and lets see some trap speeds but I have no doubt you will run the number that type of power is capable of (taking into account summer time crappy D/A's). Your engine is easily over 500 at the crank.
-Tony
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Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
Your definately doing well for that rear wheel number btw.
Regarding JohnnyMac I noticed his prior trap speeds were 108-112 depending on air and which track (per his sig), so I would prefer to make a guess based on previous performance of the car in question. An additional 110 HP which is what he picked up with the heads and cam swap would/should be worth another 10 MPH. So based on that I would anticipate 118 - 122 depending on D/A, track conditions, etc.....but mainly D/A.
That feels like a pretty good shot of nitrous.....but you never have to fill the bottle when you get it done N/A!!
Last edited by Tony Mamo @ AFR; Aug 4, 2009 at 08:08 PM.
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Thanks Tony. 
I would like to see 122 mph with his dyno numbers. Also if he is going to run at Gateway, I would like to run on the same night just to compare numbers.
If he really has picked up that kind of HP from the AFR's. You can probably count on me giving you a call this winter to order a set. I'm still running 'old school" CNC Cylinder Heads ported LT1 stockers.
I would like to see 122 mph with his dyno numbers. Also if he is going to run at Gateway, I would like to run on the same night just to compare numbers.If he really has picked up that kind of HP from the AFR's. You can probably count on me giving you a call this winter to order a set. I'm still running 'old school" CNC Cylinder Heads ported LT1 stockers.
Last edited by STL94LT1; Aug 4, 2009 at 08:36 PM.
Le Mans Master
Joined: Jul 2000
Posts: 5,012
Likes: 5
From: OKC OK
EDIT - I just contacted Larry the shop manager at LS1 Speed (in Schaumburg, IL), and he said that they have a Dynojet and would be happy to dyno your car. I'll make you a deal (because I'm truely interested in seeing how these #s compare), I'll pay for the dyno run if your car dynos over 410rwhp and over 380rwtq. On the downside, I just looked and they are not as close as I'd hoped. What do you think?
Last edited by LT4POWR; Aug 4, 2009 at 11:00 PM.
Thread Starter
Melting Slicks
Joined: Oct 2005
Posts: 3,178
Likes: 5
From: Daleville Indiana
St. Jude Donor '08
LS1 speed is not close but Anderson is. If your still game I'll see about getting on there dyno.
http://www.chassisdynotuningillinois.com/
http://www.chassisdynotuningillinois.com/
Le Mans Master
Joined: Sep 2000
Posts: 6,976
Likes: 527
From: Clouds Over California
450 is perfect....if anything on the lower side of average.
I gave seen many stock LS7 runs and the range is like 445 - 460.....with the bulk of them smack in the 450's. This is bonestock including the restrictive OEM intake filter etc.
And 443 for a H/C LS3 is also quite light but who knows how aggressive the package was and state of tune but it looks to me like you were on a very representative dyno.
Want to really back this up....go hit the local track on a cool evening and lets see some trap speeds but I have no doubt you will run the number that type of power is capable of (taking into account summer time crappy D/A's). Your engine is easily over 500 at the crank.
-Tony
I gave seen many stock LS7 runs and the range is like 445 - 460.....with the bulk of them smack in the 450's. This is bonestock including the restrictive OEM intake filter etc.
And 443 for a H/C LS3 is also quite light but who knows how aggressive the package was and state of tune but it looks to me like you were on a very representative dyno.
Want to really back this up....go hit the local track on a cool evening and lets see some trap speeds but I have no doubt you will run the number that type of power is capable of (taking into account summer time crappy D/A's). Your engine is easily over 500 at the crank.
-Tony
I have also seen SAE corrected be almost identical to uncorrected. I think and agree if there was a C6 Z06 putting down 450 rwhp...that your uncorrected numbers would be very close to SAE corrected. I want AFRs for my L98 SBC.
Former Vendor
Joined: Mar 2004
Posts: 1,518
Likes: 7
From: Valencia CA
I would have needed some serious professional help! Ultimately I knew the independent real world results would back all the claims I made.....just don't understand why it took so long to finally start disseminating into the public domain (but late is better than never!!)
I think you will start seeing alot more AFR results as fall draws closer....a few other projects should be wrapped up by then and I expect some pretty stout track times with the cooler weather. Hard to argue with the timeslips (and more importantly the trap speeds if we are discussing horsepower)!
Last edited by Tony Mamo @ AFR; Aug 5, 2009 at 12:08 AM.
Melting Slicks
Joined: Jul 2004
Posts: 2,695
Likes: 0
From: Chicago Illinois
Just looking over some #s for comparisons. Jon gained from heads and cam package 110 rwhp and 50 rwtq with a relatively mild cam. These #s are better then most Ive seen but not out of line. My H/C package netted me 90 rwhp and 50 rwtq giving me 365/350 and I have a small cam 215/224 on 110lsa. What should be in question is Jon's starting point of 309 rwhp and 340 rwtq with bolt ons. Your starting point shows LT4 or C5 power. I had all the little bolt ons and only had 275 rwhp and 301 rwtq which seemed on par with others with similar set ups. Your 340 rwtq is outstanding starting point. Bottom line, all the #s mean **** when your at the track. I cant tell you how many 400 rwhp cars Ive left in the dust and Im only running mid 12s on average with a best of 12.2. ITS ALL ABOUT YOUR SET UP! I would love to say I have 400 + rwhp but I would much rather say I have a 11 sec NA LT1
Either way you have stout #s
Either way you have stout #s
Le Mans Master
Joined: Jul 2000
Posts: 5,012
Likes: 5
From: OKC OK
LS1 speed is not close but Anderson is. If your still game I'll see about getting on there dyno.
http://www.chassisdynotuningillinois.com/
http://www.chassisdynotuningillinois.com/
Burning Brakes
Joined: Jul 2006
Posts: 1,080
Likes: 2
From: Pittsburgh PA
These are the best numbers i've seen out of an stock bottom LT1 with heads/cam of that size. Most LE3 type cams are in the mid high 230's duration and with LE2-LE3 heads only make 420 ish whp but the torque isnt that high. This motor is making as much torque as my 383 AFR 195 HSR sbc did but then agian it was a hot day with heatsoaked motor and I have an automatic with decent converter stall (locked on the runs tho)
309whp for bolt on LT1 is pretty good too for bolt ons, but certainly not out of this world. Some guys have hit 320's with bolt ons.
That combination is very impressive tho. Many people have said the LPE 219 cam acts much larger than its specs may indicate and this is one of those cases i guess. LPE 219 is a proven cam and definately a driveable cam too.
This car will most certainly trap over 120-122 mph. My 383 was at 118-119 with 400/380 whp/tq
309whp for bolt on LT1 is pretty good too for bolt ons, but certainly not out of this world. Some guys have hit 320's with bolt ons.
That combination is very impressive tho. Many people have said the LPE 219 cam acts much larger than its specs may indicate and this is one of those cases i guess. LPE 219 is a proven cam and definately a driveable cam too.
This car will most certainly trap over 120-122 mph. My 383 was at 118-119 with 400/380 whp/tq
Le Mans Master
Joined: Jul 2000
Posts: 7,634
Likes: 326
From: Greenville SC
That's pretty much why I'm pushing for SAE corrected Dynojet #s...you don't have to compare different DA, 60', driver skill, shift points, vehicle weight, gearing, transmission, etc, etc.
EDIT - I just contacted Larry the shop manager at LS1 Speed (in Schaumburg, IL), and he said that they have a Dynojet and would be happy to dyno your car. I'll make you a deal (because I'm truely interested in seeing how these #s compare), I'll pay for the dyno run if your car dynos over 410rwhp and over 380rwtq. On the downside, I just looked and they are not as close as I'd hoped. What do you think?
EDIT - I just contacted Larry the shop manager at LS1 Speed (in Schaumburg, IL), and he said that they have a Dynojet and would be happy to dyno your car. I'll make you a deal (because I'm truely interested in seeing how these #s compare), I'll pay for the dyno run if your car dynos over 410rwhp and over 380rwtq. On the downside, I just looked and they are not as close as I'd hoped. What do you think?