[Z06] Mamo Motorsports Build: MMS Heads, Solid Roller, MSD, Factory Shortblock
03-23-2017, 11:14 PM
#782
Melting Slicks
Thread Starter
Street Driving
I got the car passed through tech inspection. Sailed right through it. I received a Class B license up to 199 mph, glad I have prior race history. I'm all prepped to race now. I'm planning on doing one final lash adjustment per Tony's recommmendation prior to assaulting the runway.
Driving impressions: Little more surge below 20 mph. It needs 25% more clutch work than the K501 previous combo. On a positive note it cruises at 60mph with a hint of surge. Barely any. 70+mph and it's clean. VERY cruisable.
Power coming off the corners is surreal, only surpassed by the throttle response. I've never felt torque like this out of an NA engine. This thing is a thumper. I haven't ran it out the backdoor in any of the gears yet. Hoping to work up to that by tomorrow. The car annihilates the MPSS 345s in 2nd. It will be like driving on ice below 100mph this weekend.
Also, I was wrong about DSS. The new CF DS vibrates a bit at 2000. It's tolerable IMO, hard to notice, but I want to admit when I'm wrong. Shifting effort is reduced, shifts like butter.
Driving impressions: Little more surge below 20 mph. It needs 25% more clutch work than the K501 previous combo. On a positive note it cruises at 60mph with a hint of surge. Barely any. 70+mph and it's clean. VERY cruisable.
Power coming off the corners is surreal, only surpassed by the throttle response. I've never felt torque like this out of an NA engine. This thing is a thumper. I haven't ran it out the backdoor in any of the gears yet. Hoping to work up to that by tomorrow. The car annihilates the MPSS 345s in 2nd. It will be like driving on ice below 100mph this weekend.
Also, I was wrong about DSS. The new CF DS vibrates a bit at 2000. It's tolerable IMO, hard to notice, but I want to admit when I'm wrong. Shifting effort is reduced, shifts like butter.
03-24-2017, 08:36 AM
#785
Melting Slicks
Member Since: Apr 2009
Location: Virginia Beach VA
Posts: 2,475
Received 574 Likes
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C2 of the Year Finalist - Modified 2020
C2 of Year Finalist (performance mods) 2019
Josh, look out for a blue 1967 vette that will be running. He is hoping to break the 200 mph mark. There is lots of info on Jim on the C2 and C3 forum. He goes by 427Hotrod. Good luck and be safe. I have enjoyed this thread.
03-24-2017, 10:26 AM
#786
Team Owner
Josh,
I only notice the shaft vibe when revving it in neurtal at idle, around 1900-2200. It seems to vary, some times being worse than others. When driving it is not noticeable. Not a huge deal, nothing I'm pulling apart to fix, but I just wanted to make sure you knew about that and were going in informed. I don't know if I would trade or go back to something else, but next time it is apart I may have it machined and attempt to fix it.
I only notice the shaft vibe when revving it in neurtal at idle, around 1900-2200. It seems to vary, some times being worse than others. When driving it is not noticeable. Not a huge deal, nothing I'm pulling apart to fix, but I just wanted to make sure you knew about that and were going in informed. I don't know if I would trade or go back to something else, but next time it is apart I may have it machined and attempt to fix it.
03-24-2017, 04:33 PM
#788
Burning Brakes
Member Since: Mar 2011
Location: Tampa FL
Posts: 1,078
Received 188 Likes
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138 Posts
St. Jude Donor '13
Josh,
I only notice the shaft vibe when revving it in neurtal at idle, around 1900-2200. It seems to vary, some times being worse than others. When driving it is not noticeable. Not a huge deal, nothing I'm pulling apart to fix, but I just wanted to make sure you knew about that and were going in informed. I don't know if I would trade or go back to something else, but next time it is apart I may have it machined and attempt to fix it.
I only notice the shaft vibe when revving it in neurtal at idle, around 1900-2200. It seems to vary, some times being worse than others. When driving it is not noticeable. Not a huge deal, nothing I'm pulling apart to fix, but I just wanted to make sure you knew about that and were going in informed. I don't know if I would trade or go back to something else, but next time it is apart I may have it machined and attempt to fix it.
Last edited by MickVette; 03-24-2017 at 04:37 PM.
03-24-2017, 05:08 PM
#789
Melting Slicks
Thread Starter
Trying to figure out how the driveshaft vibration is engine rpm dependent instead of vehicle speed dependent since it is connected to the rear end and the disconnection point is at the engine (clutch). I don't doubt what you are saying, just trying to understand what would cause that. Solid mounting, CF flex, fabrication misalignment, harmonics?
03-24-2017, 05:22 PM
#791
Burning Brakes
Member Since: Mar 2011
Location: Tampa FL
Posts: 1,078
Received 188 Likes
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138 Posts
St. Jude Donor '13
Can't wait to hear your TM results!!!!
03-24-2017, 08:40 PM
#793
Team Owner
Last edited by MTPZ06; 03-24-2017 at 09:03 PM.
03-24-2017, 10:39 PM
#796
Guys,
An N/A vehicle somewhat "un-optimized" for this type of event (no taped front end, no smaller front tires, no sticky rear tires to aid traction) knocking on 200 MPH in the mile without the benefit of a tailwind is freaking awesome!!
Josh is starting the run on an ice skating rink with his street radials in the first two gears (Michelin Super Sports are useless at 100 RWHP less). The ability to apply power sooner here would really be helpful considering how hard it is still pulling up top.
The 128 trap speed in the quarter shows how much of a hard time he is having applying the power in the lower gears (this car would trap low mid 140's on sticky rubber) and the 40 MPH increase to the half mile shows just how hard this car is accelerating once its planted and just eating up asphalt!
Wish I was in Austin to better enjoy this!
BIG congrats man....car must be a blast to drive....cant wait to hear more about it with the sticky tires on it when you get back to Florida!
-Tony
PS....Buddy....I agree....Im hoping for a 198....although with the right conditions and if he could apply the full power sooner somehow to get that first part of the track looking a little stronger I think 200 is potentially within reach
An N/A vehicle somewhat "un-optimized" for this type of event (no taped front end, no smaller front tires, no sticky rear tires to aid traction) knocking on 200 MPH in the mile without the benefit of a tailwind is freaking awesome!!
Josh is starting the run on an ice skating rink with his street radials in the first two gears (Michelin Super Sports are useless at 100 RWHP less). The ability to apply power sooner here would really be helpful considering how hard it is still pulling up top.
The 128 trap speed in the quarter shows how much of a hard time he is having applying the power in the lower gears (this car would trap low mid 140's on sticky rubber) and the 40 MPH increase to the half mile shows just how hard this car is accelerating once its planted and just eating up asphalt!
Wish I was in Austin to better enjoy this!
BIG congrats man....car must be a blast to drive....cant wait to hear more about it with the sticky tires on it when you get back to Florida!
-Tony
PS....Buddy....I agree....Im hoping for a 198....although with the right conditions and if he could apply the full power sooner somehow to get that first part of the track looking a little stronger I think 200 is potentially within reach
Last edited by Tony @ Mamo Motorsports; 03-25-2017 at 01:54 AM.
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FNBADAZ06 (03-25-2017)
03-24-2017, 11:32 PM
#798
Safety Car
Congratulations Josh! 195 mph with a naturally aspirated car is impressive, you have to be happy with the result of that pass. I think you can hit 200 mph
03-25-2017, 08:33 AM
#799
Melting Slicks
wow, big number what was it with old engine like 182?
03-25-2017, 09:13 AM
#800
Nice work Josh B and Tony, very very impressive.