Dyno numbers are in.
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,943
Likes: 1
From: Rosemount MN
Originally Posted by bickel
Fantastic numbers should grab you by the seat of the pants and give you one hell of a ride!! 
You were at the mas performace shop working with john? I am in Germany I have been talking to john on the phone about the 420hp 350 he makes and I have been heavly conserding the purchase trying to hold closer to spring but it is looking like sooner is going to come than later so would you recomend them? John seems real nice and knowldgeable?
You were at the mas performace shop working with john? I am in Germany I have been talking to john on the phone about the 420hp 350 he makes and I have been heavly conserding the purchase trying to hold closer to spring but it is looking like sooner is going to come than later so would you recomend them? John seems real nice and knowldgeable?
Mike, the owner, and John's older brother does all the assembly, they're both very friendly.
They both pay close attention to detail and have been building engines for years.
I'd recommend them to anyone, they deliver on their promise...Next time you talk to John tell him how highly Tony recommends him.
Thread Starter
Drifting
Joined: Jul 2002
Posts: 1,943
Likes: 1
From: Rosemount MN
Originally Posted by bickel
You got it will more than likely call them tonight!!
thanks for the help once again congrats on your numbers!!
thanks for the help once again congrats on your numbers!!
Instructor
Joined: Apr 2021
Posts: 133
Likes: 5
Made a 383 using the stock block.
1035037507I Eagle Cast steel Crankshaft
SIR5700BPLW Eagle ESP 5140 Steel SIR I-Beam rods
H860CP Speed Pro coated pistons
2M139 Hastings rings
12-432-8 Comp Cams XR282HR-10 retro roller cam
CB663P Clevite Rod Bearings
MS909P Clevite Main Bearings
SH290S Clevite Cam Bearings
M55HV Melling High Volume Oil Pump
Dart "Kool Kan" Intake Manifold (Air Gap clone)
11121112 Dart Pro 1 Aluminum heads Dual Spring
1301-13 Comp Cams "Pro-Magmum" Roller Rockers
12-327-13 Holley High Volume Mechanical Fuel Pump
68308 Hedman Headers Coated Elite Headers
1412020 Barry Grant Speed Deamon Carburetor 88P/95S Jets
35 Degree @ 3800 Full Advance, vacuum advance disabled
10.25:1 Compression ratio
92 Octane Fuel requirement
1035037507I Eagle Cast steel Crankshaft
SIR5700BPLW Eagle ESP 5140 Steel SIR I-Beam rods
H860CP Speed Pro coated pistons
2M139 Hastings rings
12-432-8 Comp Cams XR282HR-10 retro roller cam
CB663P Clevite Rod Bearings
MS909P Clevite Main Bearings
SH290S Clevite Cam Bearings
M55HV Melling High Volume Oil Pump
Dart "Kool Kan" Intake Manifold (Air Gap clone)
11121112 Dart Pro 1 Aluminum heads Dual Spring
1301-13 Comp Cams "Pro-Magmum" Roller Rockers
12-327-13 Holley High Volume Mechanical Fuel Pump
68308 Hedman Headers Coated Elite Headers
1412020 Barry Grant Speed Deamon Carburetor 88P/95S Jets
35 Degree @ 3800 Full Advance, vacuum advance disabled
10.25:1 Compression ratio
92 Octane Fuel requirement
-sorry for reviving such a old thread but I’m looking at getting the same cam, were you still able to use headlights and power breaks. Did the cam give enough vaccum to still use those??? Because that’s what I’m worried about not having enough vaccum with that big of a cam. I have a 383 also with pretty much the same comp ratio as you.
Racer
Joined: Jul 2018
Posts: 411
Likes: 232
From: central Florida
2023 C3 of the Year Finalist - Modified
2020 C3 of the Year Finalist - Modified
2019 C3 of Year Finalist (track prepared)
Like you said, Old thread, but this might help anyway. I did the 288 on my 383 and it pulls the headlights and wipers fine. For street driving, the power brakes were fine. When I started tracking it, the pedal was inconsistent depending on length of straight aways, time on full throttle, time off throttle, etc. That is a slightly bigger cam so unless you are seriously tracking the car, I think you'd be fine.
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
-sorry for reviving such a old thread but I’m looking at getting the same cam, were you still able to use headlights and power breaks. Did the cam give enough vaccum to still use those??? Because that’s what I’m worried about not having enough vaccum with that big of a cam. I have a 383 also with pretty much the same comp ratio as you.
That was NOT a very good or well thought out build. The Dart heads were tiny 180 cc and the jetting was so far out of bounds that I could not figure it out unless they were using annular discharge boosters with a big vacuum leak.
I had a 288 type cam with a 383 and due to the single plane and 227cc heads the headlights were slow to open. The brakes were fine. I could have turned up the idle speed and they would work better
Team Owner
Joined: Apr 1999
Posts: 21,953
Likes: 1,445
From: Reno Nevada
2024 C3 of the Year Finalist- Modified
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Race Director
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
That was NOT a very good or well thought out build. The Dart heads were tiny 180 cc and the jetting was so far out of bounds that I could not figure it out unless they were using annular discharge boosters with a big vacuum leak.
I had a 288 type cam with a 383 and due to the single plane and 227cc heads the headlights were slow to open. The brakes were fine. I could have turned up the idle speed and they would work better
I had a 288 type cam with a 383 and due to the single plane and 227cc heads the headlights were slow to open. The brakes were fine. I could have turned up the idle speed and they would work better
my last RWHP Dyno run was north of 540hp and north of 560tq. (again, at the rear wheels through a complete exhaust system and all accessories including A/C) ... the intake is AFR Titan plastic single plain, with kooks 1 7/8 headers 11.4 C/R
And with amazing street manners... idles at 750-800 rpm perfectly tq starts heave at 2k rpm at and winds out at near 7k.... 1200 CFM FAST TB
Safety Car
Joined: Dec 2012
Posts: 3,974
Likes: 673
nice
100% agree... ^^^^^^. on the button as usual
my 427 is very close to that, all thou my afr's are the 220 competition ported sets. my cam is at 254/248 109sep my lift is 6.11/5.92
my last RWHP Dyno run was north of 540hp and north of 560tq. (again, at the rear wheels through a complete exhaust system and all accessories including A/C) ... the intake is AFR Titan plastic single plain, with kooks 1 7/8 headers 11.4 C/R
And with amazing street manners... idles at 750-800 rpm perfectly tq starts heave at 2k rpm at and winds out at near 7k.... 1200 CFM FAST TB
my 427 is very close to that, all thou my afr's are the 220 competition ported sets. my cam is at 254/248 109sep my lift is 6.11/5.92
my last RWHP Dyno run was north of 540hp and north of 560tq. (again, at the rear wheels through a complete exhaust system and all accessories including A/C) ... the intake is AFR Titan plastic single plain, with kooks 1 7/8 headers 11.4 C/R
And with amazing street manners... idles at 750-800 rpm perfectly tq starts heave at 2k rpm at and winds out at near 7k.... 1200 CFM FAST TB
Race Director
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
Engine Dyno or chassis Dyno there is a difference also why didn’t you bring it up to 6500 if it can do it?
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
LIke the Dart head/intake combo over the E street& intake
those are 215cc?
Thats a real strong st engine torque for days, easy to drive and decent manners.
One day Ill get smart and actually build something that makes lots of torque..and good sense
Nah probably not.
Enjoy
those are 215cc?
Thats a real strong st engine torque for days, easy to drive and decent manners.
One day Ill get smart and actually build something that makes lots of torque..and good sense
Nah probably not.
Enjoy
Safety Car
Joined: Dec 2012
Posts: 3,974
Likes: 673
Race Director
Joined: May 2003
Posts: 10,956
Likes: 409
From: California
got a picture of the 5K Dyno run chart?
I have a video of mine:-)
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
it was a chassis dyno at the rear wheels and I didn't feel the need to since I know it makes gobs of power .
Get strange looks when asked "how much hp"...you know the types.
"dont know, dont care" or throw out a real low number knowing they are gonna tel me about their buddys uncles ex nasKaar builder deelybop.
A time slip...that I pay attention to cant fake those.
Paul was your car on CL sometime this lasty yr? if not better google search your pictures cause Ive seen it up there. Everything Ok at home? lol
Just kiddin
Safety Car
Joined: Dec 2012
Posts: 3,974
Likes: 673
yes
