front tire size change

Hey guys, i have a question about front tire sizing on my altered. I currently have goodyear 24x5-15's that are really getting weather checked. I have another set of new goodyear fronts that are 26x4.5x15. My question is how will the 2inch taller tire affect the handling of an altered? Will the weight transfer suffer from raising the front of the car? ( more wheelstands, etc., or will wheelie bar readjustment compensate? It's 120 inch wheelbase with a 598 bbc with 1471 hh and a 224 low gear in a lenco 3 speed. Your help is greatly appreciated. One more question--what are you all paying for methanol on the mainland? Here in Hawaii we are paying right at $400 per drum. Thanks again for all the information to try and help some of us "newbys" along. Hope your new year is off to a great start, Les

 

That sounds like one angry altered! what body are you running? The 26" tire will only raise your front 1" or less, so I doubt it will make any difference to the handling. You could always use the Strange adjustable spindles that allow for small changes in front height. cheers from down under

 

it probley wont change the driving ability of the car but it will raise the center line of the crank an inch or so that may change the way the car leaves but with the 224 low gear its probley wild leaving anyway i do have one question though i have ran blown altereds before why do you have a 224 low gear that sounds to low to me i ran a 204 one time the car was so violant leaving i didnt know which way it was going to go then went to a 198 low and 410 rear and the car was calmer and went faster just curious

 

The crank certerline being higher will create more of a weight transfer on the launch. The front wheels will try to go higher.
But one of the biggest differences will be the added time to your reaction times. Most solid mount cars that go 2" taller usually add in the range of .025 - .040 of time on the reaction times.

 

tire size change

Thanks for the input guys. I'm hoping to get the first pass on the car on Saturday. We have our first test-n-tune then. The reason for the 224 low gear is simply what this trans had when I bought it. I am a little concerned with the big cubic inches and the low gear. If it is too violent at launch, is the 1:44 second too tall to try as 2speed instead of 3? We will just be doing some burnouts and short hits on Sat. Hope to get first full pass at our Feb.race. Hopefully after Sat. I will have a little more handle on the fuel system. I'll post back if we run and let you guys know how we did. Thanks again, Les

 

what rear gear do you have and the 144 is to tall of a gear to try and use as a 2 speed i think . with my bbc with the 204 low and 456 was violant leaving going to a 430 rear was better calmed it down a little finnally went to a 198 low and a 410 and was getting a lot easier to handle keep in mind i ran a 36/17/17 tire a 189 low would have been my next step but went to a hemi now i run a 198 low 430 rear 34/17/16 tire .95 .96 60 foots all day long good luck

 

tire size change

Hey Jim, I'm running 430 rear gear with 34.5x17x16's. One other thing I was thinking of trying this test is to try and get into 2nd quicker if the thing is too violent on the launch. This being our first run in the car means I've got a lot of testing to do, but hopefully I'll learn a bunch this Saturday. Les

 

Your low gear set has to be 1.56 in order to make up your 2.24 If you use 3rd and first you will leave with with 6.70 (1.56 X 4.30) final drive which should be in the ball park on a test and tune track.

 

les are you the same one i sold the wheelie bar to over there

 

jim phillips

Yes,I bought the wheelie bars. Haven't got them installed yet though. Didn't have time before our first test session last night. I did find out that I do need to try longer bars. I just got three launches last night, but each resulted in a 2-3ft wheelstand. I have a 3 speed lenco with a bruno converter drive and 224 low gear. On the first 2 trys I had the air throttle controller set to ramp in slow. I set it to open faster on the 3rd try hoping to get a little tire spin. Launched at about 4300rpm but again hard hook-up and wheelstand. I was wondering if any of you guys might have an idea about the 224 low gear when used with the bruno vs a clutch? I would like to at least get a decent pass before having to change the lenco. I have this behind a 598 bbc,1471hh, with 4.30 rear gears. Got a 116 60ft on the back tires. Hoosier 34.5x17x16's. Any ideas on taming this thing down will be greatly appreciated. Thanks again guys, Les

 

I'm using the 2.24 in my 3 spd. lenco with a 3 disc clutch, 4.10 rearend and 36" goodyears. I ran 34.5" until last year, and then changed to 36" and cured the tire shake on marginal tracks. 1.00 60'

 

its probley going to always leave like that if you leave the 224 low in it i went through the same shit with my blown fiat so i would get a taller first gear for sure