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Magnuson 2650 advice

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Old 02-13-2020, 03:39 PM
  #101  
99vetteran
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You bet.
Old 02-14-2020, 05:54 PM
  #102  
Phil7027
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Got an appointment with JTM for my car to go in the first week of march. If I cant get my hands on a 2650 by then im gonna just stick with the stock ported route for this season.

Does anyone know who can get their hands on one? I dont wanna deal with what HNK is dealing with and lay out 6k and be stuck with nothing
Old 02-16-2020, 04:19 PM
  #103  
cajunboyz
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Interesting Thread
Old 02-16-2020, 11:59 PM
  #104  
Phil7027
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So speed engineering has the maggy 2650’s in stock but they want close to 1,000 more than other vendors and arent willing to work on it.

any other options out there?
Old 02-17-2020, 08:18 AM
  #105  
99vetteran
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So someone is selling kits for a 1k less then what is listed on their website?
Old 02-17-2020, 08:22 AM
  #106  
Phil7027
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Originally Posted by 99vetteran
So someone is selling kits for a 1k less then what is listed on their website?
no plenty of vendors selling for 5800ish - 6k with fit kit. They wanted almost 6800$ for the c7z 2650 with fit kit and 103 snout
Old 02-17-2020, 08:25 AM
  #107  
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Old 02-17-2020, 10:03 AM
  #108  
99vetteran
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Got it, so 1k under that.
Old 02-17-2020, 10:29 AM
  #109  
Phil7027
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Originally Posted by 99vetteran
Got it, so 1k under that.
yes, 4 others vendors listing for 1000$ less than speed engineering. Guess theyre charging a premium for having them in stock
Old 02-17-2020, 05:18 PM
  #110  
jstewart
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My car goes to CBI this Wednesday for the 2650 install and tuning by Shane Hinds. I am going to ask them to document this but I don't know how much expertise they have in this. At any rate I will post the results after Shane tunes the car.
Old 02-17-2020, 05:52 PM
  #111  
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Great, good to hear your gonna be ready for some racing in the spring. Go get um
Old 03-08-2020, 09:50 AM
  #112  
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OK the installation and tuning at CBI are complete. I am in Daytona for bike week so I won't be able to pick up the car until the week after next. I got a text from CBI which said the following "16 PSI. Super safe tune on 93 octane, 819 HP. 761 TQ., The kicker though, E-85 made 968 HP 844 TQ".

After I get back from motorcycle week and pick up the car I will have the dyno sheets and supporting data and will post the details here. Right now I don't know if the 819/761 on 93 octane was with or without meth and what percentage of E-85 was used to get the 968/844. Thanks to 990veteran, CBI Street Cars, and Shane Hinds for the advice install and tune.

Last edited by jstewart; 03-08-2020 at 10:01 AM.
Old 03-08-2020, 10:28 AM
  #113  
99vetteran
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Very Cool John, those are really good number for sure. What was your low side? Dsx
Old 03-08-2020, 12:30 PM
  #114  
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Originally Posted by jstewart
OK the installation and tuning at CBI are complete. I am in Daytona for bike week so I won't be able to pick up the car until the week after next. I got a text from CBI which said the following "16 PSI. Super safe tune on 93 octane, 819 HP. 761 TQ., The kicker though, E-85 made 968 HP 844 TQ".

After I get back from motorcycle week and pick up the car I will have the dyno sheets and supporting data and will post the details here. Right now I don't know if the 819/761 on 93 octane was with or without meth and what percentage of E-85 was used to get the 968/844. Thanks to 990veteran, CBI Street Cars, and Shane Hinds for the advice install and tune.
AWESOME, Simply awesome...
Old 03-08-2020, 11:43 PM
  #115  
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Nice !! Those are big numbers ! Curious what e percentage and if meth was used/how much.

whats your mod list?
Old 03-09-2020, 09:12 AM
  #116  
jstewart
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Originally Posted by 99vetteran
Very Cool John, those are really good number for sure. What was your low side? Dsx
DSX vetteran. You live near and have connections at CBI. If you ask I am sure they would give you details. Feel free to post up the info here as I am busy having a good time in Daytona this week.
Old 03-09-2020, 09:45 AM
  #117  
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Default Mod list

1. Stock exh manifolds, cat delete downpipes. (no intention of going to LT headers)
2. Cooling upgrades including Cordes heat exchanger for intercooler, 160 degree tstat, intercooler tank plus several others
3. low side fuel upgrade DSX
4. Cordes 5' intake intake
4. 103 mmTB
5. BT stage 2 SC cam, springs & retainers, push rods, and lifters + 38% fuel lobe
6. Dual nozzle meth kit
7. Catless AFE mid pipe
8. stock dual mode mufflers
9. dual fuel upgrade for E-85
10. 18% lower pulley
11. Stock injectors
12. 2650 with 90mm pulley

I don't know what e-% was used at this point as I am in Daytona for bike week. I won't be back home to pick up the car until the week after next. I will get all the particulars then and post them.

Last edited by jstewart; 03-09-2020 at 09:49 AM.

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Old 03-09-2020, 10:52 AM
  #118  
ShaneFap
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Pretty simple
819/761 on the safe meth and 93 tune.
968/844 with E which to be exact was E75.

Its a dual nozzle like i recommended to the OP and the kit is turned all the way up. Pure M1.

There was no point in doing just a 93 pull because at the power level you're at the extra octane is needed and smart to have of course.

If you want me to guess power on 93 i would say mid 700s and very prone to knock.
Old 03-09-2020, 03:32 PM
  #119  
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Nice Job Shane, this Maggie 2650 is pretty stellar, you and Chad made the best of it for his fuel system.
Old 03-18-2020, 11:01 AM
  #120  
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Picked up my car yesterday from CBI and all I can say is OMG . The car was still running on 75% E85. Temp was in upper 50's and I had them leave the NT-05's on for the drive home to Louisville. I was unable at these temps to utilize all that HP. Thanks to Ryan at CBI and Shane for the excellent job.


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