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Converting thermoquad to E85 #2400175
11/07/17 09:22 PM
11/07/17 09:22 PM
Joined: Feb 2005
Posts: 276
NY
A
aarmaniac Offline OP
enthusiast
aarmaniac  Offline OP
enthusiast
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Joined: Feb 2005
Posts: 276
NY
Just wondering if anyone has converted a thermoquad to E85. Just an idea for the 1971 F.A.S.T. Duster.


F.A.S.T. Legal AAR Cuda 11.57 @ 118 mph 1.72 60"
Re: Converting thermoquad to E85 [Re: aarmaniac] #2400276
11/08/17 12:57 AM
11/08/17 12:57 AM
Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
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Diplomat360 Offline
top fuel
Diplomat360  Offline
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Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
Sorry, PetroCanada 94 octane is max 10% ethanol...so far (luckily) no need to go down that road.

But...I'm guessing that most of the change would be about jetting richer? Or if you have the meetering rods available take a stab at this by swapping to a richer rod instead of playing with the jets.

Re: Converting thermoquad to E85 [Re: aarmaniac] #2400321
11/08/17 02:32 AM
11/08/17 02:32 AM
Joined: May 2003
Posts: 6,560
Downtown Roebuck Ont
Twostick Offline
Still wishing...
Twostick  Offline
Still wishing...

Joined: May 2003
Posts: 6,560
Downtown Roebuck Ont
Can you even get jets and rods that add up to a 30% increase? Stock ones are hard enough to come by.

Did Mopar ever offer an alcohol strip kit for the Competition Series TQ?

Kevin

Re: Converting thermoquad to E85 [Re: aarmaniac] #2400589
11/08/17 05:16 PM
11/08/17 05:16 PM
Joined: Mar 2005
Posts: 792
Earth
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Rob C Offline
super stock
Rob C  Offline
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Joined: Mar 2005
Posts: 792
Earth
I have not done such a conversion. But others have done so on the AFB & AVS carbs. Follow there leed on drilling out the fuel passages for greater volume. You have to have more fuel for the lower btu return on E85. IIRC, again, lol, I think it is 30% more fuel. Do check that amount!

Twostep, Dip360;
On jets and rods, the factory, MP or Carter, has never offered a kit to convert to E85 or alcohol use. Metering rods and jets are available from IIRC, the carb shop. This is really a “google question” to search for.

Demonsizzler, who uses to be here and was a master at these carbs used to drill out the air bleed(s) and install Holley air bleeds to further along the tuneable aspect of the TQ. I really don’t know his tricks. So I can’t provide any tips along the modification line.

I can tell you that I have bent AFB rods 3/4 of an inch shorter, and clipped the ends off, to fit the TQ. Since there are many AFB rod choices available, you should be in good shape there.
I have only fiddled around with the TQ. When there good, there great.

Re: Converting thermoquad to E85 [Re: aarmaniac] #2400632
11/08/17 06:41 PM
11/08/17 06:41 PM
Joined: Jan 2003
Posts: 2,673
Northern MN
1E2C Offline
master
1E2C  Offline
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Joined: Jan 2003
Posts: 2,673
Northern MN
QuickD100 on here has some experience with them.

Re: Converting thermoquad to E85 [Re: Twostick] #2401003
11/09/17 02:57 PM
11/09/17 02:57 PM
Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
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Diplomat360 Offline
top fuel
Diplomat360  Offline
top fuel
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Joined: Jan 2003
Posts: 1,754
Windsor, ON, Canada
Originally Posted By Twostick
Can you even get jets and rods that add up to a 30% increase? Stock ones are hard enough to come by.

Did Mopar ever offer an alcohol strip kit for the Competition Series TQ?

Well, I took some pain to craft a spreadsheet which allows you to compare a whole wack of jet/rod combos...so the answer to the 30% question is: YES, can be done. Of course this depends on your starting point with regular fuel.

PM me if you want to see this, the forum will not allow me to attach a XLS file to a post.

Regarding the Comp Series TQ, I am guessing the answer is NO. The kit I have here is just a mix of jets/rods, similar to the standard TQ kits when they used to be available.







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