[6spdhyperblue]

How long were you on the dyno to try all these settings. Idk how many pulls it would take to work through fueling, sweeping the cam, timing, vtt, all while combating rich after flash beyond time consuming. That bill would be crazy, each of those would take 2-3 pulls each if u were good, no? Am I missing something?

[oldman]

you can tune on the road....

[6spdhyperblue]

That’s what I do and track

[Nabush]

Originally Posted by BlackbeastSS2

I’m a Bi car racer when it comes to drag racing (where the thrills are) and road course. (Where u get dizzy around and around and around)

Altitude- move, turbos, supercharger, NOS. The only thing not to complain about altitude is that everyone else races at the same height so in reality it should not matter. On one hand you mode your car for your area and then go race at different location and you feel it. It’s either better or worse on the engine. Myself I am spoiled, Mission Raceway is 25 feet above sea level and 4200 length.

Originally Posted by 6spdhyperblue

How long were you on the dyno to try all these settings. Idk how many pulls it would take to work through fueling, sweeping the cam, timing, vtt, all while combating rich after flash beyond time consuming. That bill would be crazy, each of those would take 2-3 pulls each if u were good, no? Am I missing something?

10h+ on the road and 3.5h on the dyno. Don't have the rich after flash issue.

[Snowblind]

No offense but your combination sucks.
While a car was still strapped to a dyno, I swapped out a 87mm throttle body to a 95mm (both ported) and picked up 20 ponies on a H/C car. I'm a big fan of the 2" over the 1 7/8 and even though the smell sucks...dump the cats, if you're gonna pick the biggest cam on the shelf then give it the parts to make it work. Porting the MSD will help and getting head work done is ALWAYS money well spent.

You've mentioned that e85 is available so once you decide on how to move forward, definitely get the sensor and tune for it...it's like liquid crack for our motors.

It seems you know what you are doing tuner wise but I would take a slice of humble pie and ask EFX, Pray or GPI to take a peek at your tune just to double check, it seems like the cheapest remedy if you overlooked something. Their are plenty of other tuners out there but I would gravitate towards the guys who are on the fast list, for obvious reasons.
I know your question was the concern about the mid range and not the top number, but racers don't live at 3500 rpm so I wouldn't sweat it too much. Good luck homie.

[ud03803]

From some of my experience - back in 2007-2008, I had an LQ9 408 stroker 2000 SS. It had a fairly large LS1 cam with stock LS1 heads, BBK intake, big TB, headers, etc etc. my point is my curve looked similar to yours and when the tuning guy looked at my combo, he said yeah, you need heads. I had a dip from like 3500-4500. He said that when you go WOT, the velocity of the air coming in initially stalls due to the small head ports but as the engine spins up, recovers decently. I could not afford heads at the time so I ported my stock ones myself and flattened most of that curve out and gained about 25hp up top. It wasn't perfect, but opening them up helped tremendously. Good luck.

[Nabush]

Originally Posted by Snowblind

No offense but your combination sucks.
While a car was still strapped to a dyno, I swapped out a 87mm throttle body to a 95mm (both ported) and picked up 20 ponies on a H/C car. I'm a big fan of the 2" over the 1 7/8 and even though the smell sucks...dump the cats, if you're gonna pick the biggest cam on the shelf then give it the parts to make it work. Porting the MSD will help and getting head work done is ALWAYS money well spent.

You've mentioned that e85 is available so once you decide on how to move forward, definitely get the sensor and tune for it...it's like liquid crack for our motors.

It seems you know what you are doing tuner wise but I would take a slice of humble pie and ask EFX, Pray or GPI to take a peek at your tune just to double check, it seems like the cheapest remedy if you overlooked something. Their are plenty of other tuners out there but I would gravitate towards the guys who are on the fast list, for obvious reasons.
I know your question was the concern about the mid range and not the top number, but racers don't live at 3500 rpm so I wouldn't sweat it too much. Good luck homie.

Good to have feedback. I agree my build is not perfect. In my case a 103mm TB would work fine then….to note my 87 mm is a Katech Ported one…

Before having to pay a tuner to tell me stuff I already know, I would prefer to spend money on parts...Who can port the MSD by the way ? If after the parts I still have issues then I'll consider it...

3500 rpm is a common rpm in AutoX...on roadcourse not so much….

[Nabush]

Originally Posted by ud03803

From some of my experience - back in 2007-2008, I had an LQ9 408 stroker 2000 SS. It had a fairly large LS1 cam with stock LS1 heads, BBK intake, big TB, headers, etc etc. my point is my curve looked similar to yours and when the tuning guy looked at my combo, he said yeah, you need heads. I had a dip from like 3500-4500. He said that when you go WOT, the velocity of the air coming in initially stalls due to the small head ports but as the engine spins up, recovers decently. I could not afford heads at the time so I ported my stock ones myself and flattened most of that curve out and gained about 25hp up top. It wasn't perfect, but opening them up helped tremendously. Good luck.

Thanks for the feedback !

[KingLT1]

Originally Posted by Snowblind

No offense but your combination sucks.
While a car was still strapped to a dyno, I swapped out a 87mm throttle body to a 95mm (both ported) and picked up 20 ponies on a H/C car. I'm a big fan of the 2" over the 1 7/8 and even though the smell sucks...dump the cats, if you're gonna pick the biggest cam on the shelf then give it the parts to make it work. Porting the MSD will help and getting head work done is ALWAYS money well spent.

You've mentioned that e85 is available so once you decide on how to move forward, definitely get the sensor and tune for it...it's like liquid crack for our motors.

It seems you know what you are doing tuner wise but I would take a slice of humble pie and ask EFX, Pray or GPI to take a peek at your tune just to double check, it seems like the cheapest remedy if you overlooked something. Their are plenty of other tuners out there but I would gravitate towards the guys who are on the fast list, for obvious reasons.
I know your question was the concern about the mid range and not the top number, but racers don't live at 3500 rpm so I wouldn't sweat it too much. Good luck homie.

[oldman]

Originally Posted by Nabush

Good to have feedback. I agree my build is not perfect. In my case a 103mm TB would work fine then….to note my 87 mm is a Katech Ported one…

Before having to pay a tuner to tell me stuff I already know, I would prefer to spend money on parts...Who can port the MSD by the way ? If after the parts I still have issues then I'll consider it...

3500 rpm is a common rpm in AutoX...on roadcourse not so much….

MSD is easy to port, I found smooth round files the most useful. Pray is working at extending the internal ports on his facebook pages, the port exit is where the manifold is glued and to be honest I'd like to fill it with something to make the transition smooth. Maybe two part epoxy. I used black silicone years ago and it is still there.

[Nabush]

Originally Posted by Snowblind

No offense but your combination sucks.
While a car was still strapped to a dyno, I swapped out a 87mm throttle body to a 95mm (both ported) and picked up 20 ponies on a H/C car. I'm a big fan of the 2" over the 1 7/8 and even though the smell sucks...dump the cats, if you're gonna pick the biggest cam on the shelf then give it the parts to make it work. Porting the MSD will help and getting head work done is ALWAYS money well spent.

You've mentioned that e85 is available so once you decide on how to move forward, definitely get the sensor and tune for it...it's like liquid crack for our motors.

It seems you know what you are doing tuner wise but I would take a slice of humble pie and ask EFX, Pray or GPI to take a peek at your tune just to double check, it seems like the cheapest remedy if you overlooked something. Their are plenty of other tuners out there but I would gravitate towards the guys who are on the fast list, for obvious reasons.
I know your question was the concern about the mid range and not the top number, but racers don't live at 3500 rpm so I wouldn't sweat it too much. Good luck homie.

BTW where can I find a 95mm ported TB ? Or should I go 103mm ?

[Snowblind]

Originally Posted by Nabush

BTW where can I find a 95mm ported TB ? Or should I go 103mm ?

I bought a ported 95 from a vendor but I'm not happy with it so I can't help you on where to go/not go.
The testing we did on my motor showed no gain going from a 95 to the 103. I made 705 at the crank just for reference.
I ported my own MSD also, watched a couple of videos and picked up a couple die grinder bits then went to town. The Holley Hi ram is the new buzz word but the MSD does hold its own up to 7k rpm, it leaks like a bitch so rtv that sucker when you're done.

[Nabush]

Originally Posted by Snowblind

I bought a ported 95 from a vendor but I'm not happy with it so I can't help you on where to go/not go.
The testing we did on my motor showed no gain going from a 95 to the 103. I made 705 at the crank just for reference.
I ported my own MSD also, watched a couple of videos and picked up a couple die grinder bits then went to town. The Holley Hi ram is the new buzz word but the MSD does hold its own up to 7k rpm, it leaks like a bitch so rtv that sucker when you're done.

To make 705 crank you probably are stroked to 7L (427) right ?
My interrogation is will a 95mm non ported be better than a ported 87mm ? The 103mm are expensive also, at $650....

I'll take a look at porting the MSD...thanks. When you say it leaks, where ?

[6spdhyperblue]

It says stock bottom end in his sig.