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Reducing front end lift during acceleration

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Old 23 June 2016, 08:03 PM
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TypeR99
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Default Reducing front end lift during acceleration

After reviewing my videos from Santa Pod I can see that the car dramatically lifts and dives during acceleration and gear changes.

I understand that an anti-lift kit upgrade wont solve this so my next question is what should I be looking to do so I dont look like a nodding dog.

Currently have STI red shocks with STI springs, 22mm/24mm arbs, solid rear links, standard front, standard wishbones, front upper strut brace.

Dont want to spend crazy money on it if I can help it, only thing I can think of that would cause it are tired shocks? I do like how the reds feel on the road so wouldnt want to change to coilovers and have been looking at KYB Ultra SR's as replacements?

If anyone has any tips that dont involve spending 1k+ please let me know
Old 23 June 2016, 08:08 PM
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cookstar
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They do squat on launch pretty badly. My green car used to nearly get a front wheel off the ground on its old suspension.

Coil overs solved that.
Old 23 June 2016, 08:21 PM
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TypeR99
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Its more the gearchange dive/lift I want to reduce. I understand it'll lift on launch so didnt expect to be able to totally cure that but it definitely needs to reduce travel mid run.
Old 23 June 2016, 08:22 PM
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bustaMOVEs
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Got some rock hard tein coilovers that don't budge I can sell you, will cure problem
Old 23 June 2016, 08:42 PM
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TypeR99
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No thanks, I've tried 2 sets of coilovers on it already and didnt like them on the road.

I'm not going to spend silly money trying to cure this, I can probably justify going for replacement shocks as they'll be money well spent, I was just curious if theres any other tried/tested methods and I'd also like to know if its caused by front end shock travel or rear end being too soft.

As I say, this isnt about launching its reducing movement during gear changes. You'll see what I mean in the video

Old 23 June 2016, 09:09 PM
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aaahhh yessssss, see what you mean....


Old 23 June 2016, 09:10 PM
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haha, ooooooh yes
Old 23 June 2016, 09:15 PM
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Munk
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all i can say is coilovers aswell, dont get lift on mine like that.. doesnt really help though sorry....
Old 23 June 2016, 09:28 PM
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Stockish suspension will give you lift like that but will be suitable better on road.
You can't have both.
a 'good' set of coilovers will solve that and be compliant enough on road if you choose the 'proper' coilovers.
Old 24 June 2016, 07:49 AM
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Originally Posted by bustaMOVEs
Stockish suspension will give you lift like that but will be suitable better on road.
You can't have both.
^^^ this.
You can't have your cake and eat it too!
Old 24 June 2016, 08:56 AM
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Originally Posted by Blue by You
^^^ this.
You can't have your cake and eat it too!
This guy wants a cherry on top too
Old 24 June 2016, 09:20 AM
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Ash Webster
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you're going to need very stiff suspension to stop xkg of engine weight. comfort or stiffness.. its the age old trade off
Old 24 June 2016, 05:06 PM
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alternatively you could try hard rubber spring assistors for the rear springs. For my STI shocks/prodrive springs I used Grayston GE15 ones which slid into the spring and removed quite easily. They will limit how much the spring compresses.
My main reason for using them was to give support when towing our caravan and it did firm up the rear. I did use them at the pod with limited success, the problem was I didn't do anything to stop the front coming up. I did look at Grayston spring clamps, GE7, which can be used to compress spring travel, for the fronts at the time but went down the coilover route. You'll find the stuff if you google ebay or amazon.
I still do have the rear inserts if interested.
Trev
Old 24 June 2016, 06:29 PM
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Ok, based on the replies I take it coilovers are the weapon of choice.

Question is, has anyone found a set that ride well on the road and have then adjusted them for track? I like the way the car rides at the moment but admit it does roll when cornering hard so I suspect the reds/springs are getting tired.

I can get Bilsteins new for around £1500 trade but would prefer not to have to break the bank.

I'd be interested to know what people are running on a fast road classic and their experiences as long as they arent £300 ebay specials
Old 24 June 2016, 08:28 PM
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What about a set of KYB AGX'S. Can be had new for around £500 and can also be adjusted... stiffen them up for strip then soften them for journey home. Add some good quality springs and you're golden.
Old 24 June 2016, 10:27 PM
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Originally Posted by MattyB1983
What about a set of KYB AGX'S. Can be had new for around £500 and can also be adjusted... stiffen them up for strip then soften them for journey home. Add some good quality springs and you're golden.
I like the sound of that, but when I looked I only found Excel G or Ultra SR's

Any links/suppliers?
Old 24 June 2016, 10:59 PM
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Ebay is the cheapest place for them believe it or not. Just search for 'impreza KYB AGX'.

£475 plus £30 postage.

Last edited by MattyB1983; 24 June 2016 at 11:00 PM.
Old 24 June 2016, 11:28 PM
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Originally Posted by MattyB1983
Ebay is the cheapest place for them believe it or not. Just search for 'impreza KYB AGX'.

£475 plus £30 postage.
Thanks Matty, I'll look into them. Appreciate the info
Old 26 June 2016, 02:20 PM
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Just noticed I haven't got you down on the drag leaderboard 99, do you know your power levels and quickest run stats?

https://www.scoobynet.com/driving-dy...l#post11561790
Old 26 June 2016, 03:45 PM
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http://www.ebay.co.uk/itm/Kayba-AGX-...4AAOxyi3FR3quq

Plus a set of wr15r/t springs + matching bump stops/dust boots = £340 inc delivery.

The performance of your Subaru inverted struts was degrading by 50k. The Subaru inverted struts soft rear bump stop isn't helping - assuming it's still intact?
Old 26 June 2016, 05:29 PM
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Originally Posted by RS_Matt
Just noticed I haven't got you down on the drag leaderboard 99, do you know your power levels and quickest run stats?

https://www.scoobynet.com/driving-dy...l#post11561790
11.84 @ 121
418bhp/420 lbft

60ft - 1.89
330ft - 5.12
1/8th - 7.73 @ 94.9

It will go quicker. Grip was very poor off the line and 0.2 slower 60ft than 2 weeks previous on almost every run despite losing around 60kg from the car.

Im confident theres an 11.6 in the car with the right conditions and some tweeks to suspension
Old 26 June 2016, 09:05 PM
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Added. Often a terminal time is indication of potential ET and going by the leaderboard 11.49 might be on!
Old 06 July 2016, 12:01 AM
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Spotted these and they look good value for money

http://www.scoobyparts.com/suspensio...rs-gss12-21ss2

I did say I wouldnt go back to coilovers, mainly for 2 reasons. 1, the price of most are too much for me (bc's are £700+) and 2, I was concerned they wouldnt ride as well as shocks/springs. The teins use stock top mounts by the look of it so wouldnt be like going full on, and with them being new I'd have better chance of em lasting and dialling them in.

I'd be getting a geo setup from Carnetix once fitted, just curious if anyone else is running them.
Old 06 July 2016, 10:47 AM
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Did you not read my post?
Old 06 July 2016, 11:43 AM
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I read the post where you generalised on shocks vs coilovers and then became sarcastic about my requirements, is that what you mean?
Old 06 July 2016, 11:47 AM
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Rock hard as a clue
And maybe if you weren't full of lies i may not be sarcastic towards you

Last edited by bustaMOVEs; 06 July 2016 at 11:52 AM.
Old 06 July 2016, 11:52 AM
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so are you trying to sell me them or basically stating that theyre a hard ride?
Old 06 July 2016, 12:44 PM
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Got a set of Yellow speed racing coilovers sat here, used but just had new pillow ***** on the rears, server me well just upgraded to tein.
Old 06 July 2016, 12:55 PM
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Originally Posted by TypeR99
so are you trying to sell me them or basically stating that theyre a hard ride?
No, stating they are rock hard litterly, at 550 new not suprised
Old 06 July 2016, 01:18 PM
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Tein a pretty good, there's a few guys on here using the more expensive tein coilovers and rate them highly.
The problems start when they get old and knackered. They become firm and get a bad rap. Usual story is someone buys a car with them fitted. Tein UK will refurb them for circa £50 a corner.

I'm not sure what those cheaper tein coilovers are like though.

Last edited by MattyB1983; 06 July 2016 at 01:21 PM.


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