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> Pros and Cons of Running w/o Rar Hatch
post Oct 5, 2009 - 9:32 AM
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qatar11

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So we ran about half the race without the rear hatch to save weight and I'm not sure whether or not it helped... some of my thoughts:


- Should we really be chopping weight out of the back of a FF at this point (already stripped interior)?
- Do we ever go fast enough to have compromised aerodynamics as a result of removing the rear hatch?

Anyway - just some thoughts


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post Oct 8, 2009 - 2:17 AM
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Hanyo

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to be honest, if i was the one building this car for the lemon race i would have got rid of the hatch a long time ago.

Its very heavy and anything less then 60 mph you will not have much aerodynamic benefits. the 7afe is already under powered that needs as little weight to pull as possible. Like i mention before more weight on the rear tires will give your more stabilty. But fwd cars don't necessarily use the common 50/50 split weight ratio for good handling. On tight circuits, When the car is accelerating majority of the time. Most of the 50/50 weight gets transfered to the rear. therefore you will only have 40% of the weight over your front tires. This cause reduce acceleration and slower turn in. A 60/40 split for a fwd is preferred by some; the reason is the majority of the weight is on the front tires to allow for better turn in,better brake response, more lift off oversteer because you don't have to wait for weight shift to get maximum tire weight/grip to the front tires.

But the ultimate answer to your question is. How do the drivers of the car respond to the modifications? If removing the hatch also removes confidence from the drivers then it is a useless modification and will slow you down. If your car is not tuned to your drivers, No matter well tuned the car is it will not set a fast lap time.

post Oct 8, 2009 - 2:46 AM
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TiGZ461

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QUOTE (Hanyo @ Oct 8, 2009 - 3:17 AM) *
But the ultimate answer to your question is. How do the drivers of the car respond to the modifications? If removing the hatch also removes confidence from the drivers then it is a useless modification and will slow you down. If your car is not tuned to your drivers, No matter well tuned the car is it will not set a fast lap time.



I really like that one.


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1996 Toyota Celica ST 25th Anni. Edition #461

Posts in this topic
- qatar11   Pros and Cons of Running w/o Rar Hatch   Oct 5, 2009 - 9:32 AM
- - Ruroniarc   Less weight = go faster (technically) regardless o...   Oct 5, 2009 - 10:31 AM
- - qatar11   right - I agree with the less weight ... but at th...   Oct 5, 2009 - 10:52 AM
- - Harold_Fastwaker   Taking weight out of just the rear will make the c...   Oct 6, 2009 - 4:22 PM
- - Hanyo   it really depends on the coarse. If your are rac...   Oct 7, 2009 - 2:30 AM
- - qatar11   We were on a very fast course - 2 mile course aver...   Oct 7, 2009 - 8:03 AM
- - Culpable04   you'll lose traction as the chassis will flex ...   Oct 7, 2009 - 9:07 AM
- - Harold_Fastwaker   Well, you would be better off running an actual wi...   Oct 7, 2009 - 3:24 PM
- - SwissFerdi   A little off-topic, but isn't the car already ...   Oct 7, 2009 - 3:32 PM
|- - Harold_Fastwaker   QUOTE (SwissFerdi @ Oct 7, 2009 - 4...   Oct 7, 2009 - 3:55 PM
- - SwissFerdi   That's pretty terrible. Does anyone know how m...   Oct 7, 2009 - 4:27 PM
|- - Harold_Fastwaker   QUOTE (SwissFerdi @ Oct 7, 2009 - 5...   Oct 7, 2009 - 4:32 PM
- - qatar11   We are starting to scope creep here some... remem...   Oct 7, 2009 - 6:24 PM
|- - Harold_Fastwaker   QUOTE (qatar11 @ Oct 7, 2009 - 7:24 ...   Oct 7, 2009 - 7:16 PM
- - Tom_SS2   keep the hatch, bin the glass just stick in some p...   Oct 7, 2009 - 6:39 PM
- - Hanyo   to be honest, if i was the one building this car f...   Oct 8, 2009 - 2:17 AM
|- - TiGZ461   QUOTE (Hanyo @ Oct 8, 2009 - 3:17 AM...   Oct 8, 2009 - 2:46 AM
- - yellowchinaman   Well the biggest issue I see with removig the hats...   Oct 8, 2009 - 7:15 AM
- - Tigawoods   back end will lift and slip out   Oct 8, 2009 - 11:06 AM
- - lagos   Replace glass. Add riser blocks.   Oct 8, 2009 - 2:07 PM
- - Superaison   replace glass as stated above, and get a carbon fi...   Oct 8, 2009 - 2:14 PM
- - johnnehh   QUOTE (Superaison @ Oct 8, 2009 - 3...   Oct 8, 2009 - 4:47 PM
- - Tigawoods   cf hatch ftw. then paint it thats what im doing   Oct 8, 2009 - 6:58 PM
- - SwissFerdi   Screw that, I'd leave it bare. CF sexyness FTW...   Oct 8, 2009 - 7:04 PM
- - Tigawoods   it would look down right idiotic on my car   Oct 8, 2009 - 7:49 PM
- - SwissFerdi   That's true...unless you got one with blue wor...   Oct 8, 2009 - 7:50 PM
- - qatar11   Where are you guys finding CF rear hatches?   Oct 8, 2009 - 8:11 PM
|- - 6strngs   QUOTE (qatar11 @ Oct 8, 2009 - 6:11 ...   Oct 8, 2009 - 8:56 PM
|- - presure2   QUOTE (6strngs @ Oct 8, 2009 - 8:56 ...   Oct 10, 2009 - 7:18 AM
- - Tom_SS2   he can't fork out for a CF hatch as the car ca...   Oct 10, 2009 - 8:17 AM
- - Tigawoods   even if it where to. would the glass be enough? th...   Oct 10, 2009 - 8:17 AM
- - qatar11   I think the rear hatch and glass are required from...   Oct 10, 2009 - 8:45 AM
- - Tom_SS2   QUOTE (qatar11 @ Oct 10, 2009 - 9:45...   Oct 10, 2009 - 9:53 AM


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