frenchyd said:Nope.
I'm pulling a Jaguar with a Jaguar. Well just because.
I could take the cheap way and pull it with the truck. $650-700.
Now I might be wrong. On my estimated fuel mileage but I'd hate to get 1/2 there and run out of money.
So you're planning on around 5 mpg. I'm sorry but I'm done here. I'll check back in May 2025 and see how you're doing. SMH.
Stampie said:frenchyd said:Nope.
I'm pulling a Jaguar with a Jaguar. Well just because.
I could take the cheap way and pull it with the truck. $650-700.
Now I might be wrong. On my estimated fuel mileage but I'd hate to get 1/2 there and run out of money.So you're planning on around 5 mpg. I'm sorry but I'm done here. I'll check back in May 2025 and see how you're doing. SMH.
Oh , I forgot to mention the Jaguar I'll use requires premium which last I looked was $4.49/9
That was the reason I was asking about carbs vs EFI. If I do that I can use E85 which will hurt fuel mileage by about 20% but costs for E85 is $2.39/9 vs $4.49/9
The advantage of much cooler running is a potential for some more timing advance which might increase mileage enough to reduce costs significantly.
I had all that thought out but failed to explain my thinking.
You were right in that carbs are easy. I've got them, rebuild and bolt on 2 days tops.
EFI is do all the wiring. Bigger injectors needed, higher fuel pressure required, Use a Megasquirt program a senor to detect % of alcohol etc.
In reply to Stampie :
It's roughly 3000 miles round trip. Premium gas ( required because stock compression is 11.5-1 , 12.5 in England) $4.49/9 a gallon this morning.
If you check the 1973 XJ12 returned 8-14 mpg. I cut that in 1/2 because towing another Jaguar. Cal it 6 mpg ?
$2200 or close enough I won't argue the difference.
As a data point, driving my Toyobaru to the Challenge from Ontario and back on 93-octane took about $400 in gas.
(This included driving through SR68/Six Gap area on the way down, and spending a day farting around WV on the way back, so I probably could've got it down to $350)
In reply to GameboyRMH :
I understand driving a street car is going to be cheaper than towing a race car.
But what happens if it breaks or blows up? Hence the trailer. Sure I could make the trip with my Truck for a lot less ( about $700)
But this is about fun. I think it will be fun to pull a Jaguar race car with a Jaguar. Probably even more fun than the 10-15 seconds I'd have doing the drag race with the race car . ( I'll turn it over to autocross experts for the autocross).
I don't know if I'll enter the Race car or the tow car. The tow car cost me $500 plus a little effort to clean up, swap engines, and whatever a trailer hitch will cost me to weld up. So I can easily prove documentation.
So I could get that judged while the undocumented race car can't be judged. The 1/4 mile time of the tow car should be 16.7 seconds. On up to a top speed of 150 mph. If it performs as well as original. And the autocross time with stock tires and shocks will be right at the slowest time. Especially if I drive it.
In reply to frenchyd :
You'll get plenty of drag passes. If you're not going to drive any autocross runs yourself, I'll take dibs on one in whatever you bring 
Typically you get 3 pro autocross runs and you should have time for at least 6 runs total.
You could also enter the post-Challenge track day: https://www.motorsportreg.com/events/grassroots-motorsports-track-day-at-firm-florida-intl-rally-msport-park-640230
In reply to GameboyRMH :
That is nice information. Thanks. The track day sounds like a lot of fun.
As for multiple drag passes? I'm not sure how eager I am to do that with the potential of only a 16.7 1/4 mile time. Can I peel the sticker off and put it on the race car to make a pass or two? ;-) There I'm pretty sure I'd probably improve with practice, unless they have pro drag racers.
As far as others driving the race car in the autocross? Sure!!! Have fun. . I suppose I'll have to drive it once to convince others it's OK.
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