corolla TRD springs

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corolla TRD springs

Postby Caveman » Thu Mar 23, 2006 11:41 pm

Hi, im just looking to upgrade my suspension. Its an ae92 levin. I currently have whiteline progressive lowering springs, 45mm drop all round. Have tried monroe and standard shocks, standard were definatly better.

Anyway this car is going to be a track car involving mainly autocross and gravel hill climb with the occasional circuit visit. Comfort is not an issue, neither is noise.

I have done a search and everyone recommends TRD springs. From what I gather these lower around 20mm? This would be perfect as current setup is too low.

Everyone recommends them but I cant find any descriptions of how they ride, handle, etc. My main concern is getting the rear frimer as its way to soft right now, heaps of understeer.

Also what sort of shocks should I look at. How are monroe gt? I really dont like the standard monroe range but my mate has really good results with the monroe GT. What about KYB? Koni? I dont really need adjustable, just 1 hard setting 8) bascially if harder is better i'd like to know, I dont give a damn about comfort, I have my daily anyway so this will hopfully be an all out racer.

Any advice appreciated.

Thanks
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Postby peas » Fri Mar 24, 2006 12:41 am

I just put KYB's into my AE92 Levin and are pretty happy with them. Fairly firm but with a decent ride too. Just be sure to check if you have struts or inserts on the front and tell them this... saves some swearing later on :P
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Postby rallymazda » Fri Mar 24, 2006 11:31 am

ive got trd springs in my ae111

ride is alot stiffer than standard but not as stiff as king springs or similar would produced, but it has hardly any roll, quite suitable for new zealands potholed roads

if you want to reduce understeer you will need at least a new rear stabiliser, ive got front and back trd ones and the difference it made is unbelivable, especially around tight hill roads, you REALLY have to push it to make it understeer (good tyres make a difference with that as well)
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Postby THA SHZ » Fri Mar 24, 2006 10:06 pm

i run konis in mine dylan , and i wood never run anything less ever agan , give me a call sumtime dylan and i can let u know prices etc of wot u want 8)
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Postby Mr Revhead » Fri Mar 24, 2006 10:44 pm

yeah monroes are rubbish... go the konis.
try a whiteline rear sway bar (i can supply) they make an amazing difference.

do that then think about changing your springs (but i doubt ull have too) most TRD springs are a 25-30mm drop
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Postby Caveman » Sat Mar 25, 2006 12:56 am

THA SHZ wrote:i run konis in mine dylan , and i wood never run anything less ever agan , give me a call sumtime dylan and i can let u know prices etc of wot u want 8)

Will drop round some time, im soon being sponsered by studylink :lol: :lol: :lol: Go the Student Loan!

Will also need those bushings 8)
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Postby Caveman » Sat Mar 25, 2006 1:03 am

Thanks for the info guys.

I may keep my whiteline springs, and just try the rear sway bar, shocks and nolethane bushes. I would have though being lowered 45mm would be getting near the suspension stroke limit.

Just as a guide the rear whiteline are about as soft as standard rear.
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Postby B1NZ » Sat Mar 25, 2006 4:44 pm

TRD do a rally/dirt spring which apparently keep the ride hieght ner the same as factory but just stiffen it slightly, this is what i am going to get so i dont drag the ass of the car over the gravel 99% of the time
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Postby Caveman » Sat Mar 25, 2006 11:16 pm

B1NZ wrote:TRD do a rally/dirt spring which apparently keep the ride hieght ner the same as factory but just stiffen it slightly, this is what i am going to get so i dont drag the ass of the car over the gravel 99% of the time

Thanks, will look into the rally springs, this is exactly what I was looking for 8) Rally springs, shocks and rear sway bar should work out nicely 8) Just looking for some specs now
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Postby Caveman » Sun Mar 26, 2006 12:32 am

Well after having a look at TRD's website it looks like the TRD lowering springs and TRD rally springs are both road legal and similar rates. The rally maintain standard ride height, I think these are for me 8)

Here are the stats for anyone who is interested

TRD AE92 - rally springs
Part No. Qty List Price Spring Rate Body colour-Mark colour
Front
48131-AEA52-27 2 Discontinued K=26.5N/mm Light blue￾|White
48131-AEA52-31 2 7,000 K=30.4N/mm Light blue￾|Yellow
48131-AE951-35 2 Discontinued K=34.3N/mm Green
Rear
48231-AEA52-27 2 7,000 K=26.5N/mm Light blue￾|Yellow
48231-AE951-30 2 Discontinued K=29.4N/mm Green

TRD AE92 - Lowering springs
Part No. Qty List Price Remarks
48130-AE900 1 Discontinued Full set
48131-AE911 (2) 7,000 Front￾@K=31.4N/mm
48231-AE911 (2) 7,000 Rear￾@K=29.4N/mm

From http://trdparts.jp/english/

Would anyone know the standard spring rate for ae92?

EDIT: I think the unit N/mm may be incorrect as 31.4N/mm works out as 0.277lb/in :lol: I would assume the correct unit to be N/m as 31.4N/m works out as 277lb/in

EDIT (again): It seems my maths sucks and the correct unit is N/mm :lol: 31.4N/mm works out as 180lb/in
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