Jap Devil
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Posts posted by Jap Devil
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some slight rubbing at the front on full lock. They come out tops in several tests.
Thats a bit concerning on 18's, unless your car is very low.
Have a look in the garage....I think it qualifies as being very low
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the knock would not be the piston making contact, if this was the case then the stroke of the damper has been critically designed,badly!! the knock usually comes from the spherical top mounts if fitted, moreso the problem can be caused by piston movement inside the damper body
Ahhh but stroke of the damper can be altered on the Apexi... MacRs200 tinkered - http://www.lexusownersclub.co.uk/forum/ind...topic=25192&hl=
You haven't been listening at all......whatever the position of the cylinder/dampener/spring, the feckin car bounced and knocked like a bag o bones....
which is why now I don't have the problem.....
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the problem can be caused by piston movement inside the damper body
Which suggests to me that Apexi have a design/QAQC problem. I don't have such an issue with the TRD's on the MR2 or the HKS on the IS
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Dastek have only a few authorised mappers nationwide....who have the software to map correctly. Anyone else who advertises to map needs to be taken with a pinch of salt, for the sake of your engine!
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I supplied the Unichip + boost module myself.....
Fitting and mapping came to a few pence shy of Four Hundred Quid
But well worth it.....
BTW...these are the guys who build the V6 TT engines for the Noble brand
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You mean "Quantatative" results?
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Have you asked Mark him self mate ? he is rather clued up.
Shame I'm going up to Walsall tonight, could have met you down here ......... only down the road from me !
Yes mate. He doesnt know either as no one has yet pushed the engine to see what it is capable of.
Take the car to Noble Motorsport in Chesterfield Adie. They don't have a record of blowing engines
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IS300 with current mods as listed: £475 thats with max protected NCB and 3 points. They've quoted me £1200 up to 550bhp with the full FI conversion. Thru Adrian Flux.
MR2 with mods as listed (ahrmmmm, most at least) £550 thru AON
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I'm not happy.... this space, is it between the base of the lower coil cup, or the main body of the shaft.
It's the gap between the base of the lower end of the spring and the top part of the inner tyre wall.
I'd get a picture but it's impossible without getting right underneath the car
Found these:
They tell me that a pair of 15mm hubcentric spacers will cure the problem!
You do realise this will change the 'scrub radius' so your new geometry will be void.
Yes - but better than suffering a high speed blowout!
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Thanks mate
Are they better than the new Toyos?
Without a doubt. Toyos are excellent rubber but not up to the same level as the Bridgies. Only the Mich Pilot Sport is probably better but have you seen the price of those!
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Actually Mike maybe you could help me. The wheels i'm getting from Ahmet are the 18" Chicaine. I think they are the same as yours (and everybodys). What size tyres did you go for mate?
I'm running Bridgestone Potenza S03 Pole Position 235/35/18 all around, some slight rubbing at the front on full lock. They come out tops in several tests.
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Also a "Wanted" and "For Sale" section, open to all private sellers of course
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I'm not happy.... this space, is it between the base of the lower coil cup, or the main body of the shaft.
It's the gap between the base of the lower end of the spring and the top part of the inner tyre wall.
I'd get a picture but it's impossible without getting right underneath the car
Found these:
They tell me that a pair of 15mm hubcentric spacers will cure the problem!
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Recently i was made aware of adjustable drop links.... are they any good? and if fitted does this mean there is no need to up-rate the sway bar?
I'm not sure about adjustable drop links.....
When we fitted the coilovers to the MR2 the standard front DL's were way too long. Peter Gidden of sBits made me a set of custom DL's which although are not adjustable they fit perfectly. It's only when the car is lowered that the requirement for shorter DL's is necessary, just uprating to a thicker ARB uses the standard parts.
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Have you had the camber adjuster bolts fitted?
No, since the rear camber was achieved with the standard bolt and fitting the bolts to the front would have reduced the gap between the tyre wall and the spring (unless I'm missing something
)I don't really want to drive the car until I can get the problem addressed, last thing I want is a blowout in the Ring @ 120mph
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I've just had the geometry checked and adjusted - how would you say this compares with the custom settings you recommended?
Another problem came to light at the front - there is only 5-6mm between the inner tyre wall and the coilover spring, which looked to have been rubbing slightly when the tyre was under load. I guess I'll need to fit wheel spacers, but how wide? Does this mean I'll also need to fit extended studs?
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Peter,
Your trade goes back '000's of years and is one to be proud of......tell us about al the times those hosses have kicked or shat upon you!
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not sure you can allow a passenger
Apparently that's what they do........no doubt it's the skinniest SOAB runt in the factory who gets to sit in the chair!
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I came up with the dampening settings really just by experimenting with the adjusters to give the optimum ride.
I think that the differences are as a result of the weight distribution. Remember that the MR2 is less than 1,300Kg and has almost perfect weight distribution front/rear (48/52%), whereas the fat IS comes in at almost 2 tonnes and is front-heavy.
As far as I can fathom out, the knock comes when the piston either tops or bottoms out, which suggests that there is an optimum ride height for a given car on a given coilover where the piston sits somewhere in the middle of the dampener. Does this make sense?
mr2 is about 950 kg and any inbalance is hardly near perfect
lexus is200 is about 1400 kg, and has a 50/50 perfect balance
950Kg....noooo way
1290Kg.....full tank with passenger. (front axle 530kg, rear 760k
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Well, car's back from Noble
Didn't quite make the 300bhp number but not very far off -
Before: 259.3 bhp / 250.3 lbft
After: 295.2 bhp / 275.7 lbft
Boost @ 4,000rpm Before 14psi After 17 psi (fuel cut hits @ 18 psi)
It's awesome....and scary!
BTW the numbers are "flywheel" not "hubs" due to the final figures being calculated back based upon transmission losses (which aren't all that much on the MR2)
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I'm not so sure Neil, the HKS Hiper's have compression of 10kg/mm front and 9kg/mm rear - same as the Apexi's. Also Anees has the Apexi's on his IS200 and his knock like a bag of bones!
The big difference I'm seeing with the HKS and the TRD coils is that the length of the dampener itself is not adjustable like with the Apexi's. Only the spring length is adjustable and it seems to make all the difference.
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I came up with the dampening settings really just by experimenting with the adjusters to give the optimum ride.
I think that the differences are as a result of the weight distribution. Remember that the MR2 is less than 1,300Kg and has almost perfect weight distribution front/rear (48/52%), whereas the fat IS comes in at almost 2 tonnes and is front-heavy.
As far as I can fathom out, the knock comes when the piston either tops or bottoms out, which suggests that there is an optimum ride height for a given car on a given coilover where the piston sits somewhere in the middle of the dampener. Does this make sense?
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It's not aimed at you Dan.......there are certain members who use a script to keep reloading their garage page to increase the number of views, in order to stroke their own egos. Sad but true.