Maggie 2650?

[Vanishing Point]

I’m considering it. But like everything, you have to take testing from the source with a grain of salt. Doesn’t matter whether it’s medicine, gas mileage, 737 Max airplanes, or anything else, the manufacturers test are going to be higher performing with less drawbacks than the end users’ experience. I think the claims of hp on this (1,000 - 1,500hp (even on a proper set up)) could be a little suspect.

I’m waiting for a few penguins to get pushed over the edge before I jump in. I’ve got the set up with a 2011 Camaro SS, LSX 409, 4L80E, E85, etc., to maximize this blower, but I want to see what others with a similar set up get out of it before I forego a PC or TT, in favor of this simpler roots. Currently running a too small for my build, Edelbrock E-Force. Better built the rest, now ready for a blower upgrade.

[390ciSCed]

Originally Posted by Vanishing Point

I’m considering it. But like everything, you have to take testing from the source with a grain of salt. Doesn’t matter whether it’s medicine, gas mileage, 737 Max airplanes, or anything else, the manufacturers test are going to be higher performing with less drawbacks than the end users’ experience. I think the claims of hp on this (1,000 - 1,500hp (even on a proper set up)) could be a little suspect.

I’m waiting for a few penguins to get pushed over the edge before I jump in. I’ve got the set up with a 2011 Camaro SS, LSX 409, 4L80E, E85, etc., to maximize this blower, but I want to see what others with a similar set up get out of it before I forego a PC or TT, in favor of this simpler roots. Currently running a too small for my build, Edelbrock E-Force. Better built the rest, now ready for a blower upgrade.

True. Magnuson's claim of 1,500 HP capable is actually ridiculous, unless you have an exotic, $20,000 engine with a solid roller and giant cam on race gas with a manual tranny and dyno tricks....LOL
They will hover around the 1,000 RWHP mark for a well built engine.

Harrop, however, has never inflated any numbers. They have a youtube video dyno testing a 427ci. It went up to around 1,080 FWhp......as they slowly added better TB's, spacer, ported SC'er, air intake, etc......

The best numbers I've seen so far from an independent shop was 1,150 FWhp. So actually BETTER than Harrops claims........ A member here, posts on page 1 of this thread "mrvenicess". Its his engine with the Harrop 2650.

Thats a company you can trust....not to inflate numbers.

I waited a long time. I have a Huron Speed A/C retaining single-turbo kit....it will make 1,300 RWhp on my set up. I was hoping this Harrop 2650 would have made at least 1,100 RWhp....its close to it.
I'll be going to a gathering tomorrow at DS Motorsports in Ft. Lauderdale.......gonna chat with them about installing my turbo kit.....or doing the Harrop. I think tomorrow I'll make up my mind....then give them my car in a week or two. I've waited long enough to do this build......

[Vanishing Point]

Cool. Curious of which way you’ll go and why. Please let us know. I think if you talked it over with different tuners/builders or owner/enthusiasts, like everything else you’re going to get different opinions and advice. Even despite the specific units you’re considering installing, some people just prefer turbos and some superchargers. I’ve found you have to be patient and absorb a wide array of opinions and look at the aggregate of them to help you make your call. Seems like you’ve been doing that for a while, much like myself.

With that Eforce maxed at 15lbs, I’m at 719 rear. I think I’d be happy at 1,000rwhp, but that would mean between 1,150 - 1,250fwhp. That might be too much to ask out of either the Magnuson or Harrop. Then there’s the issue that maybe 1,000rwhp won’t be enough for me and I find that I want more. If I do, then I’m stuck replacing the blower all over again.

If I could get smack dab in the middle of that quoted range, (1,250rwhp), I’d be happy to go with the (likely) simpler install, less belt issues, more reliable unit, cooler temperatures, instant throttle response, less piping, less maintenance, etc., factory style roots blower. Unfortunately I doubt it’s going to be powerful enough for my needs. But I’m patiently monitoring.

I’d like to see real guys’ real full builds get tested. That would almost always be a rwhp measurement. For one thing, the stock trannys wont handle that kind of power. The Jake’s Performance Stage 5 4L80E that I’m running is a lot stronger, and is rated to handle it. But, to get that much stronger, it’s bigger and heavier (harder to turn) than stock, so it eats up more hp in the process of getting the power to the rear wheels.

Notice when Magnuson tested that unit on that Camaro, they left the stock tranny in it. They ran a slower run (likely just hoping to get a number in before destroying the tranny), then a faster one. But that is unrealistic as that tranny won’t take 1,100+rwhp for very long. It was just to get those unrealistic numbers, with an easier to turn tranny. Though any data is helpful, real guys running it through real builds, built to last, not built to destroy getting unrealistic numbers, getting their dyno runs at the rear wheels would be most helpful. I’m waiting to see some of those for both the Harrop and the Magnuson.

Yeah, I’m excited to hear what mrvenicess gets rwhp, with how many lbs the blower is set to, and what tranny. He already gave us a nice engine build list. Thanks for sharing mrvenicess.

[mrvenicess]

Im bringing my car to the shop this Friday to start installing and setting up my new Harrop equipped engine. Going to start out with the middle pulley, what we used on the engine dyno when we got 1155 hp. Only 15 lbs of boost. I want to see if my built trans can handle it. We have a bunch of power available if we need more. Can go up to 20 lbs of boost and at the time of the dyno runs it wouldn't run over 7200 rpm as the NW throttle body was closing before we got to 8,000 rpm. I'll keep you all in the loop on our progress.

[swiftkart]

Originally Posted by mrvenicess

Im bringing my car to the shop this Friday to start installing and setting up my new Harrop equipped engine. Going to start out with the middle pulley, what we used on the engine dyno when we got 1155 hp. Only 15 lbs of boost. I want to see if my built trans can handle it. We have a bunch of power available if we need more. Can go up to 20 lbs of boost and at the time of the dyno runs it wouldn't run over 7200 rpm as the NW throttle body was closing before we got to 8,000 rpm. I'll keep you all in the loop on our progress.

It will be interesting to see what 1155hp @ the crank is @ the wheels since you are not changing anything and running the same boost, hopefully it will be at the same rpm also.

[Bmf5150]

https://boostdistrict.com
Is coming out with a 2650 kit too

[laynlo15]

We already have customers working on the 2650 Jackshaft for the Gen5. It does have the Camaro belt line but it will require some Fab work on the customers part. Nicky Performance is working on a 2013 Zl1 kit right now with the 2650 Jackshaft, hopefully they'll have that wrapped up in a couple months or less. We have a couple of C10's in progress and the 2650 does have the capability of those HP numbers. Our Copo teams could make that much if they weren't limited by pulley size. As far as the under hood version of the LS not sure when that will be as we are currently ramping up to release the DI Lt4 kits for the Gen6 ZL1 Camaro and Z06 C7 vets.

[Bmf5150]

Hmm ok,I emailed Tim Clifton from your company a month ago and told me the heartbeat version of the 2650 for the LS motor was coming out this month?

[laynlo15]

Tim actually retired but I'll get an update for you at our sales meeting on Tuesday.

[laynlo15]

We are just a little behind and I found out the LS will follow the LT's for the DI engines. We already have a lot of those spoken for. I want to see the LS finished also, we have a lot of customers who want those as well. Perfection takes some time. We don't want any customers to have issues after they come out and we won't rush a product to just get it out the door and then have to fix stuff that customers find wrong.

[Bmf5150]

Thanks for the update,how far out do you think the LS version is from coming out?

[laynlo15]

I'm not sure, we have had a lot of interest in the under hood so hopefully we can get the DI on track and then hit the LS kits.

[Vanishing Point]

Mrvenicess,
I’m anxious to hear the results of your Harrop 2650 install and dyno testing. I would love to see some photos with it installed as well, if not too much trouble, and hood down to see overall profile necessary for install. I have no business to be pushy or even ask for anything from you, so forgive me please, if I’m being impatient. I forced myself to wait a month before I asked about status. On 5/6 you said you were dropping the car off for install that Friday. its been exactly a month today from that Friday. Any news to share or still in process? It wouldn’t surprise me at all to hear they are taking more than a month to get it together. Most builder/tuner shops know demand exceeds supply so they can do as they please. I’ve waited longer for less.

Somebody mentioned a third manufacturer selling the Eaton 2650 drive. I guess I should mention a fourth - Edelbrock. Seems Eaton makes the blades and then these companies surround it with their own housings, pipes, intercoolers, pulleys, etc. I’m not sure how much variance of performance there will be from one to the next but I gotta think they’ll all be in the same ball park. With Magnuson not even having an idea when their under the hood 2010-2015 version will be developed, I’m not holding my breath for that housing, especially since they’ve been saying it’s just around the corner for years now.

[mrvenicess]

Originally Posted by Vanishing Point

Mrvenicess,
I’m anxious to hear the results of your Harrop 2650 install and dyno testing. I would love to see some photos with it installed as well, if not too much trouble, and hood down to see overall profile necessary for install. I have no business to be pushy or even ask for anything from you, so forgive me please, if I’m being impatient. I forced myself to wait a month before I asked about status. On 5/6 you said you were dropping the car off for install that Friday. its been exactly a month today from that Friday. Any news to share or still in process? It wouldn’t surprise me at all to hear they are taking more than a month to get it together. Most builder/tuner shops know demand exceeds supply so they can do as they please. I’ve waited longer for less.

Somebody mentioned a third manufacturer selling the Eaton 2650 drive. I guess I should mention a fourth - Edelbrock. Seems Eaton makes the blades and then these companies surround it with their own housings, pipes, intercoolers, pulleys, etc. I’m not sure how much variance of performance there will be from one to the next but I gotta think they’ll all be in the same ball park. With Magnuson not even having an idea when their under the hood 2010-2015 version will be developed, I’m not holding my breath for that housing, especially since they’ve been saying it’s just around the corner for years now.

We are still working on the install. Redid the fuel system and are now working on hooking up all the various sensors and lines. Ill try to take some pictures soon.