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  #11  
Old 02-27-2022, 10:41 AM
Walt's Avatar
Walt Walt is online now
 
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 7,086
Default

If it was mine Id opt for high compression, mags, AFP injection.
(The same things I did on my new 370 a few years ago).
Runs like a scalded dog
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Walt Aronow, DFW, TX (52F)

EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 2000+ hrs, New Titan IO-370, Bendix Mags, AFP FI, MTV-9 prop
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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  #12  
Old 02-28-2022, 06:42 AM
rvanstory's Avatar
rvanstory rvanstory is offline
 
Join Date: Dec 2016
Location: New Braunfels
Posts: 553
Default AeroSport Power

I had full intentions of installing a Thunderbolt engine, but when I got ready, lead times had grown too long for my wait. So, I ordered mine from Aerosport Power. I have been VERY pleased with them!!! Customer support is TOP NOTCH!! Engine runs great and burns a quart about every 15-20 hours. They can customize as much as you want. I highly recommend them if you want another alternative. https://www.aerosportpower.com/
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Randy Vanstory
Flying RV10 - N783V
2021 Sun N Fun Reserve Grand Champion
2021 Oshkosh Bronze Lindy

1st Flight 08/20/2020 / Current Hrs - 420
Donation Happily Made 2023
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  #13  
Old 03-03-2022, 02:07 PM
leok leok is offline
 
Join Date: Apr 2013
Location: Forest City, NC
Posts: 442
Default

Mine is configured as follows;

Airflow Performance injection
Run with shop mags and shipped with plastic covers. I added SDS CPI2 with no significant issues.
Chrome valve covers
Red paint.
8.5 compression

I was able to visit the factory for my build and watch the whole thing. Very cool. Jeff is great to work with. Jeff will work with you on any details/adjustments as you approach the build date. Order up your best guess and then talk it through with Jeff as the build approaches.

A very smooth engine, now with 225 hours on it.

Highly recommended.
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Building started Oct 5th 2014, Flying since 1/16/2020
http://www.mykitlog.com/leok
RV Hotel, come by and visit if you're in town
Dues paid 2023
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  #14  
Old 03-03-2022, 04:01 PM
greghughespdx's Avatar
greghughespdx greghughespdx is offline
 
Join Date: Nov 2011
Location: Aurora, OR
Posts: 1,368
Default Heads-up

We'll publish more details as soon as we have them, but since we have some info available and people are currently making decisions:

We want to provide a heads up on a few things that - in addition to the engine price increases - will be changing in terms of Thunderbolt custom engine orders from Lycoming. These are Lycoming's changes, which will take place at the same time as the price increases, and we are just passing the manufacturer's info along (these are not set by Van's).

"Standard" options for Thunderbolt engines:
  • You'll be able to choose custom color options, same as you can now (single- and two-tone standard colors, or single- or two-tone custom colors).
  • Polished cylinder fins will be a (rather pricey) option.

The following customized Thunderbolt engine options will - after the price change take place - result in an engine customization fee (TBD but it will be at least $1000, charged once per engine regardless of how many of the below are applied) plus the cost of the upgrade(s). All of the below items fall into that category:
  • Custom compression ratios
  • Chome pushrod tubes
  • Cold air induction (540 engines)
  • Aerobatic kit (inverted oil)
  • Starter ring gear removal

Working on the final numbers and will be able to publish soon.
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Greg Hughes - Van's Aircraft
Van's web site | Instagram | Facebook
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XP IO-360
VAF build thread - Flickr photo album - Project Facebook page
Aurora, OR (EAA Chapter 105)

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  #15  
Old 03-03-2022, 08:34 PM
cactusman's Avatar
cactusman cactusman is offline
 
Join Date: Oct 2012
Posts: 574
Default

Quote:
Originally Posted by greghughespdx View Post
We'll publish more details as soon as we have them, but since we have some info available and people are currently making decisions:

We want to provide a heads up on a few things that - in addition to the engine price increases - will be changing in terms of Thunderbolt custom engine orders from Lycoming. These are Lycoming's changes, which will take place at the same time as the price increases, and we are just passing the manufacturer's info along (these are not set by Van's).

"Standard" options for Thunderbolt engines:
  • You'll be able to choose custom color options, same as you can now (single- and two-tone standard colors, or single- or two-tone custom colors).
  • Polished cylinder fins will be a (rather pricey) option.

The following customized Thunderbolt engine options will - after the price change take place - result in an engine customization fee (TBD but it will be at least $1000, charged once per engine regardless of how many of the below are applied) plus the cost of the upgrade(s). All of the below items fall into that category:
  • Custom compression ratios
  • Chome pushrod tubes
  • Cold air induction (540 engines)
  • Aerobatic kit (inverted oil)
  • Starter ring gear removal

Working on the final numbers and will be able to publish soon.
Thx Greg (and all for comments and suggestions) - just pulled the TB trigger today. Gets me in what ever the long line is.

Curious as to what the "standard" compression is for the Lycoming 540 - I asked for 9:1 based on the info I had from SDS and EFII to run all fuel types. But I don't see any info on what the standard TB compression build is?

Also why would you ask for the starter ring gear removal?
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RV12 Built and Flying
RV10 Started

Last edited by cactusman : 03-03-2022 at 08:45 PM.
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  #16  
Old 03-03-2022, 09:14 PM
bayoubengal bayoubengal is offline
 
Join Date: Feb 2018
Location: Peachtree City GA
Posts: 34
Default

Sounds like several of you had the same kind of day I had. A bit stressed trying to determine my options.
I ended up selecting a Thunderbolt with the option showing no mags or EFI, but requested in the notes to have it configured with Airflow Performance fuel injection. I am leaning to dual P-Mags, though one of my advisors, a RV expert, is advising one P-Mag and one legacy mag. I plan to visit all the suppliers at SunNFun to learn more before I make a final decision.
I would be very interested in your experiences with the various systems as well as your philosophy on dual electronic vs one of each. Two standard mags is not really under consideration at this time.
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David W. Hutchinson
Peachtree City, GA.
RV-10/N433DH (Res)
Paid until Feb 22
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  #17  
Old 03-03-2022, 09:21 PM
Carl Froehlich's Avatar
Carl Froehlich Carl Froehlich is offline
 
Join Date: Dec 2007
Location: Dogwood Airpark (VA42)
Posts: 4,154
Default

Quote:
Originally Posted by cactusman View Post
SNIP

Curious as to what the "standard" compression is for the Lycoming 540 - I asked for 9:1 based on the info I had from SDS and EFII to run all fuel types. But I don't see any info on what the standard TB compression build is? SNIP
In most cases 9:1 pistons will limit you to 100LL or 100UL (whatever that may be). The standard 8.5 pistons can run 93 or 94UL fuel.

Carl
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  #18  
Old 03-04-2022, 07:50 AM
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rv6ejguy rv6ejguy is offline
 
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 6,569
Default

Deletion of the "ring gear" is really deletion of the flywheel or what Lycoming calls the Ring Gear Support. This would be done when planning to use SDS EFI or ignitions as many of the later Lyc flywheels lack the 12 tooling holes required to drill it for our magnets.

You can get an earlier factory flywheel (used usually) or order one of our billet ones which already has the magnets mounted.

As far as CR goes. Several SDS customers are running 91 Mogas with 8.5 CR with no issues. We simply retard timing slightly at high MAP. At lower MAP, generally full timing can be run so it doesn't impact performance at altitude much if any.

Jeff at Thunderbolt has always been good to work with and customers have been very happy with his support as well, from feedback we receive.
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Ross Farnham, Calgary, Alberta
Turbo Subaru EJ22, SDS EFI, Marcotte M-300, IVO, Shorai- RV6A C-GVZX flying from CYBW since 2003- 466.4 hrs. on the Hobbs,
RV10 95% built- Sold 2016
http://www.sdsefi.com/aircraft.html
https://www.youtube.com/channel/UCiy...g2GvQfelECCGoQ


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  #19  
Old 03-04-2022, 08:06 AM
cactusman's Avatar
cactusman cactusman is offline
 
Join Date: Oct 2012
Posts: 574
Default

Quote:
Originally Posted by rv6ejguy View Post
Deletion of the "ring gear" is really deletion of the flywheel or what Lycoming calls the Ring Gear Support. This would be done when planning to use SDS EFI or ignitions as many of the later Lyc flywheels lack the 12 tooling holes required to drill it for our magnets.

You can get an earlier factory flywheel (used usually) or order one of our billet ones which already has the magnets mounted.

As far as CR goes. Several SDS customers are running 91 Mogas with 8.5 CR with no issues. We simply retard timing slightly at high MAP. At lower MAP, generally full timing can be run so it doesn't impact performance at altitude much if any.

Jeff at Thunderbolt has always been good to work with and customers have been very happy with his support as well, from feedback we receive.
Thanks Ross - So reviewing my info 93 Octane seems to be the min for 9:1... or 8.5:1 gets you ok with 91 Premium Mogas. I might have to mod my order.

Anyone know what the "standard" Thunderbolt compression build is?
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RV12 Built and Flying
RV10 Started
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  #20  
Old 03-04-2022, 01:47 PM
steve murray's Avatar
steve murray steve murray is offline
 
Join Date: Jan 2005
Location: Flat Rock, North Carolina
Posts: 435
Default

Maybe Titan will get back in the IO_540 business.

They built the engine for my 10 and Shipped it to me without mags, fuel pumps and fuel injection items and I installed SDS dual system. I have stock 8.5:1 pistons and run 93 octane with ethanol (yes , with ethanol).

I have about 240 hours on the setup and am super pleased with the performance. I do retard timing back at high power settings. Typically get about 160 _ 165 knots TAS at 10.4 gph
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RV10 - Flying (Jan 2020)


RV8 - Built 2006- Flown 800 hours Sold 2021

RV4 Kit Purchased 2021
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