Was wondering if anyone had heard of this "G4" brand before? For the price I'm seriously considering buying a set. The ad says for 92-99 but surely it would include 1991 models?
So, any word on this brand of coilover? Any input?
Wednesday, April 19, 2006 - 12:33 pm, by: Damien Smith(Damien)
My 2c is that they'd be too stiff for the road with those spring rates, I think they really are meant for racing. Never heard of the brand before but they have 17.8kg/mm front and 9.8kg/mm rears whereas Tein's are usually 14 front/8 rear and the more "streetable" coilovers like HKS and my Buddy Clubs are 12 front/6 rear.
If they're too stiff they'll actually handle worse on anything but totally smooth surfaces.
Wednesday, April 19, 2006 - 12:43 pm, by: Damien Smith(Damien)
Dampers only control the spring so with stiff springs the dampers also need to be stiff. If the dampers are softened too much the car bounces and loses traction (like a pogo stick).
Tuesday, August 08, 2006 - 07:22 pm, by: Rahul Kendre(Rahulkendre)
hi guys... even i am planning to buy these adjustable G4 coilovers (they are affordable). i enquired about the spring rates and i got a reply as
"These will fit your car, but the spring rates will be a little bit too stiff. I can swap the spring rates for you without a problem. Trevor Fielding JustJap Auto Imports"
what do you guys reckon about swapping the spring rates,will that worsen my handling or will it be better.
Wednesday, August 09, 2006 - 09:21 am, by: Damien Smith(Damien)
What are the spring rates they come with? If they're too stiff your handling will be worse on anything slightly bumpy - you want something fairly compliant to keep the wheels on the ground.
For comparison Tein are usually 14kg/mm front & 8kg/mm rear however 12F/6R are also common on other brands and a bit more comfortable.
Wednesday, August 09, 2006 - 02:40 pm, by: Rahul Kendre(Rahulkendre)
Hi Damien, Thanx for the reply, the spring rates they have on is FRONT SPRING RATE: 17.8 kg/mm REAR SPRING RATE: 9.8 kg/mm but I dont know what he's going to swap it with. the thing is Tein's coilovers costing me $ 1899 and these G4 are coming upto $ 1399.
Wednesday, August 09, 2006 - 07:54 pm, by: Bob Fulthorpe(Morphious)
Hi Guys,I have just fitted G4 coilovers to my TT which I am preparing for hillclimbing.The 17.8 kg front spring is way to firm .Just Jap have been very good and are getting 13 kg coils.The std kit is way to firm for street,but would be good for drift or race track (if smooth). The kit is of a high quality with a large field of easy adjustments with regard to the inserts.
Thursday, August 10, 2006 - 08:36 pm, by: Brendan McGannon(1jzspec)
this is not only personal opinion but fact asswell,g4,d2 hsd's etc all the cheapies are pure crap,the damper adjuster is just a clicker it does nothing at all! the aluminium that they are made of is cheap stuff and bends and even cracks right down the side of the shock,thus the cheap price tag,as for fitting,anything that says (jza80 supra) will fit our soarers,and lastly those of you that have ever played around with spring rates will know that having stiffer springs up front with rather soft springs at the back will promote understeer,i have 3 sets of springs for my teins according to what track im sliding on,my usuals are 18kg/mm front and 16kg/mm rear,yes it is stiff but if you want comfort why buy adjustable coilovers?
Thursday, August 10, 2006 - 08:46 pm, by: Damien Smith(Damien)
The fronts are stiffer than the rears because the weight distribution is mainly in the front of the car with the back end being quite light. I expect yours to be quite prone to oversteer with springs that stiff at the rear?
I use 12front/7rear and regularly go to trackdays and find them just right for mine, however I have removed a lot of weight from the front of the car.
Thursday, August 10, 2006 - 09:08 pm, by: Brendan McGannon(1jzspec)
true yes,i have done weight reduction up front also,and yes the rear of the car comes around nicely,but after all thats how i set it up,drift purposes,its not insanely uncontrolable,the big issue with spring rates is what the car is to be used for......grip or slip,2 very different settings!
Thursday, August 10, 2006 - 09:36 pm, by: Brendan McGannon(1jzspec)
yep shes a beaut for the sideways action!
out of the many times ive been down at exhaust technology down here in s.a (marky marks shop-drifts a red s15) he had a set of them in the front of his car for free to try out,the rhs shock was bent hardcore! full crease marks and all
Thursday, August 10, 2006 - 10:04 pm, by: Jeff Wilkins(Calin)
",the damper adjuster is just a clicker it does nothing at all!"
What ever crack your smoking, stop now! Its bad mmkay?!
"the aluminium that they are made of is cheap stuff and bends and even cracks right down the side of the shock"
Its aluminium, not titanium so yes it can crack that is true. However, the casings are made from 6061 Extruded Aluminum, if there is any metalurgists around they will tell you that is the same grade as used for Aircraft and Aerospace applications. Coincidentally, Tein use the same grade on the majority of their shock casings (Their Recreation Vehicle range use 7000 series aluminium as it is even tougher).
'Soft' rear promoting understeer. Absolutely. Unless your out trying to drift race, slight (and I do mean slight) understeer is preferable to oversteer. Having said that, there is nothing really SOFT about D2 track model coilovers, just varying degrees of firm.
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