MeanStreet FiTech EFI
Thread Starter
Le Mans Master
Joined: Aug 2008
Posts: 5,578
Likes: 61
From: Austin TX
MeanStreet FiTech EFI
My 415 ci CNC Motorsports SB made 551hp on an engine dyno, 412hp/453 tq on a dynojet. I'm looking at the Mean Street version because it's readily available.
It's rated to 800hp.
Does anyone see any issue running this on my engine?
Thanks
It's rated to 800hp.
Does anyone see any issue running this on my engine?
Thanks
Drifting
Joined: Aug 2015
Posts: 1,939
Likes: 477
From: NSW, Australia
C3 of Year Finalist (track prepared) 2019
Should be fine. Having said that, the 600hp units should be fine also, and I love having the ignition control as well... Particularly with a healthy engine like yours, I think it will help to smooth out the idle and improve the driveability at lower load and revs.
Last edited by Metalhead140; Apr 19, 2017 at 08:57 PM.
Thread Starter
Le Mans Master
Joined: Aug 2008
Posts: 5,578
Likes: 61
From: Austin TX
The Mean street is available without waiting, and after reading the thread about the chevelle owner gaining 2 mph trap speed by switching from the FiTech 600hp to the 650hp Sniper, it has me wondering. We make similar HP, and the only reason I can think he gained power would be the FiTech 600 is at the limit.
Thanks
Drifting
Joined: Aug 2015
Posts: 1,939
Likes: 477
From: NSW, Australia
C3 of Year Finalist (track prepared) 2019
I don't think so, could be wrong but I think the Fitech should fairly comfortably support 600hp, looking at injector size etc. I believe I am making over 500 (hasn't been on a dyno yet), and I've had no problem. Driveability and hot starts are excellent. I can't explain why rel3rd dropped time with the Sniper, though I don't think he had many runs with the Fitech? The meanstreet doesn't have ignition control I'm pretty sure?
Last edited by Metalhead140; Apr 19, 2017 at 10:07 PM.
Thread Starter
Le Mans Master
Joined: Aug 2008
Posts: 5,578
Likes: 61
From: Austin TX
I don't think so, could be wrong but I think the Fitech should fairly comfortably support 600hp, looking at injector size etc. I believe I am making over 500 (hasn't been on a dyno yet), and I've had no problem. Driveability and hot starts are excellent. I can't explain why rel3rd dropped time with the Sniper, though I don't think he had many runs with the Fitech? The meanstreet doesn't have ignition control I'm pretty sure?
You're probably right.
Pro
Joined: Oct 2011
Posts: 743
Likes: 71
From: Jarrettsville Maryland
That's the main reason I want it. While it's very drivable as is, I have serious hot start issues that are making me not enjoy taking it anywhere.
The Mean street is available without waiting, and after reading the thread about the chevelle owner gaining 2 mph trap speed by switching from the FiTech 600hp to the 650hp Sniper, it has me wondering. We make similar HP, and the only reason I can think he gained power would be the FiTech 600 is at the limit.
Thanks
The Mean street is available without waiting, and after reading the thread about the chevelle owner gaining 2 mph trap speed by switching from the FiTech 600hp to the 650hp Sniper, it has me wondering. We make similar HP, and the only reason I can think he gained power would be the FiTech 600 is at the limit.
Thanks
Thread Starter
Le Mans Master
Joined: Aug 2008
Posts: 5,578
Likes: 61
From: Austin TX
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Safety Car
Joined: Jan 2008
Posts: 3,794
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From: Aarhus, Denmark
I would go for ignition control.
As I see it, then you buy "to big" a system, and is giving up the opportunity to have ignition control.
So unless you go for more power, then why the bigger system, you will never "use" and miss the opportunity for ignition control, for more money?
I can see that Summit has both 600hp systems ready to go.
As I see it, then you buy "to big" a system, and is giving up the opportunity to have ignition control.
So unless you go for more power, then why the bigger system, you will never "use" and miss the opportunity for ignition control, for more money?
I can see that Summit has both 600hp systems ready to go.
Pro
Joined: Oct 2011
Posts: 743
Likes: 71
From: Jarrettsville Maryland
On my 79 Corvette, I ran a Holley 770cfm and had percolation issues so bad that fuel would boil over while driving and stall the car. The fuel would also boil out of the carb and empty the bowls after the car was turned off. The intake I was using at the time meant I had minimal hood clearance. I tried EFI to solve the issue, but preferred a carb. I'm currently running an 800cfm Edelbrock carb (I ran a 650cfm Edelbrock for 30,000 miles before I tried the Holley and had no percolation issues). With my old intake, the Edelbrock would sometimes run rough for a minute or two after a hot start. Even that little annoyance seems to have disappeared after installing my current intake earlier this week. The current intake will accept a spread-bore, so I'm considering trying out a Qjet eventually to see how it compares. The car is daily driven year round.
If you have some extra room under the hood, there are carb spacers and heat shields than can help with the problem as well. I just didn't have any room for it.
If you have some extra room under the hood, there are carb spacers and heat shields than can help with the problem as well. I just didn't have any room for it.
Le Mans Master
Joined: Jan 2000
Posts: 8,721
Likes: 108
From: Canada
The ability to have the efi unit control timing is one of the biggest plusses for going this route. If you are dead set on going with FiTech I would wait and get the 600. I like the Sniper better than the FiTech but availability is an issue with these units as well. What distributor and fuel system are you going to be running?
Thread Starter
Le Mans Master
Joined: Aug 2008
Posts: 5,578
Likes: 61
From: Austin TX
Not much more hood room with the RPM intake.
If I go EFI, Tanks,inc makes a ready to go unit. I'll just have to route a new return line since my LT1 car never came with one.
What are the benefits of the timing control if you already have a steady curve that works?
I have a full MSD ignition.
One poster showed a two mph trap gain by switching from the FiTech 600 to the Sniper 650. But no one has explained how that could happen. We have similar hp.
If I go EFI, Tanks,inc makes a ready to go unit. I'll just have to route a new return line since my LT1 car never came with one.
What are the benefits of the timing control if you already have a steady curve that works?
I have a full MSD ignition.
One poster showed a two mph trap gain by switching from the FiTech 600 to the Sniper 650. But no one has explained how that could happen. We have similar hp.
Thread Starter
Le Mans Master
Joined: Aug 2008
Posts: 5,578
Likes: 61
From: Austin TX
The hot start issue I have is when I let it sit for 20-30min and try and start and keep it running. It seriously floods and will barely run at 3500 rpm. It eventually clears up, but is embarrassing.
Safety Car
Joined: Jan 2008
Posts: 3,794
Likes: 430
From: Aarhus, Denmark
Not much more hood room with the RPM intake.
If I go EFI, Tanks,inc makes a ready to go unit. I'll just have to route a new return line since my LT1 car never came with one.
What are the benefits of the timing control if you already have a steady curve that works?
I have a full MSD ignition.
One poster showed a two mph trap gain by switching from the FiTech 600 to the Sniper 650. But no one has explained how that could happen. We have similar hp.
If I go EFI, Tanks,inc makes a ready to go unit. I'll just have to route a new return line since my LT1 car never came with one.
What are the benefits of the timing control if you already have a steady curve that works?
I have a full MSD ignition.
One poster showed a two mph trap gain by switching from the FiTech 600 to the Sniper 650. But no one has explained how that could happen. We have similar hp.
I have G-Team 7530, it is a great single plane intake, 3" air cleaner and it fits under std. hood.
I also have a 15mm spacer with my EZ-EFI 1.0
Pro
Joined: Oct 2011
Posts: 743
Likes: 71
From: Jarrettsville Maryland
I replaced the Holley with an Edelbrock and no longer had that issue. I replaced the Performer RPM with a ZZ4 intake on Tuesday. The ZZ4 is noticeably lower in height than the RPM. So far, I've noticed no drop in performance (on a 350 up to 6,000rpms), and I haven't had any annoyance with hot starts. (My wife used to ask if my car ever started st the first turn of the key; it did every time I drove it yesterday.) The car seems to run a little better off idle, too.
I got the intake used off if eBay for under $150. The Edelbrock carb is around $500. That's certainly cheaper than an EFI system.
The EFI I used was the FiTech Mean Street. The car had the manners of a modern car. I preferred a carb, so I switched back (I have a thread about it on the forum if you want details).
Thread Starter
Le Mans Master
Joined: Aug 2008
Posts: 5,578
Likes: 61
From: Austin TX
My old intake I mentioned is the Performer RPM. After 20-30 minutes of sitting, With the Holley, I'd start the car and it would be okay for a minute. Then, I would accelerate and the car would stumble because a stream of fuel was shooting out of the bowl vent. It would sometimes stall and not want to restart.
I replaced the Holley with an Edelbrock and no longer had that issue. I replaced the Performer RPM with a ZZ4 intake on Tuesday. The ZZ4 is noticeably lower in height than the RPM. So far, I've noticed no drop in performance (on a 350 up to 6,000rpms), and I haven't had any annoyance with hot starts. (My wife used to ask if my car ever started st the first turn of the key; it did every time I drove it yesterday.) The car seems to run a little better off idle, too.
I got the intake used off if eBay for under $150. The Edelbrock carb is around $500. That's certainly cheaper than an EFI system.
The EFI I used was the FiTech Mean Street. The car had the manners of a modern car. I preferred a carb, so I switched back (I have a thread about it on the forum if you want details).
I replaced the Holley with an Edelbrock and no longer had that issue. I replaced the Performer RPM with a ZZ4 intake on Tuesday. The ZZ4 is noticeably lower in height than the RPM. So far, I've noticed no drop in performance (on a 350 up to 6,000rpms), and I haven't had any annoyance with hot starts. (My wife used to ask if my car ever started st the first turn of the key; it did every time I drove it yesterday.) The car seems to run a little better off idle, too.
I got the intake used off if eBay for under $150. The Edelbrock carb is around $500. That's certainly cheaper than an EFI system.
The EFI I used was the FiTech Mean Street. The car had the manners of a modern car. I preferred a carb, so I switched back (I have a thread about it on the forum if you want details).
I think a ZZ4 intake and edelbrock carb would kill a fair amount of power on my combo. But, more than that, if I'm going to spend money, I might as well get the best of both worlds.
Pro
Joined: Oct 2011
Posts: 743
Likes: 71
From: Jarrettsville Maryland
I'm looking for better manners, and I'm surprised you switched back to a carb if it ran well.
I think a ZZ4 intake and edelbrock carb would kill a fair amount of power on my combo. But, more than that, if I'm going to spend money, I might as well get the best of both worlds.
I think a ZZ4 intake and edelbrock carb would kill a fair amount of power on my combo. But, more than that, if I'm going to spend money, I might as well get the best of both worlds.
Understood about spending miney money to get the best option. That's why I splurged for the EFI system when I did. I hope whichever route you go with works out for you!