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Discussion Starter · #1 ·
Chaps,

Having just purchased my 156 GTA SW and gotten used to it - I have some questions I'm hoping you can help with.

Firstly: Ride height. The front end on mine is borderline unusable low - I have to diagonal over fairly minor speed bumps. As far as I'm aware it's the standard shocks and springs. Also someone has fitted 235 40 tyres on the standard 17" (teledial?) GTA wheels, which brings be onto my next questions...

Tyres: I know I'm going to get "Do a search" as I'm no stranger to car forums but I'm hoping for a one word answer - can I replace the 235/40 with 235/45 to gain some ride height without sacrificing the extra width?

Exhaust: I got what I'd consider a bargain when I bought the car, so I'd like to invest some cash in an exhaust/intake/map (if my first question doesn't result in replacement shocks!!) but would like to avoid it sounding raspy, does anyone have any suggestions for a setup which would keep the "boomy" properties of the 3.2 without it sounding "parpy"?

Lastly, thanks for reading and apologies if these questions were answered recently and have avoiding my search-fu.

Ta,

Gophur
 

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On 17 teledials u should be rolling on 225/45 that is the correct profile and 225/40 on my 18. They r the wring size profile on ur car at the mo. Don't think changing the profile of ur Tyres will help u with the ride height. There is a post about trying to raise the front end a little but nothing has come about I think. Most have upgraded to fsd shocks and eibach springs which slightly lowers but reducing botoming out due to the firmer suspension.
 

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A 235/40x17 tyre has a diameter of 24.2" and a 225/45x17 tyre has a diameter of 24.8" so by fitting 225/45x17 tyres you raise the front by about 7mm.

Also 235/40x17 has a recommended rim width of 8-9.5" so outside the 7.5" rim width of the GTA wheels.
 

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Discussion Starter · #4 ·
Thanks for the replies, currently I'd take the extra 7mm. A 235/45 has a diameter of 25.3" so that'd bag me a little more lift to the nose - this is unless someone comes along and says "Your shocks have clearly collapsed, buy new ones". It's not unheard of to fit 235 section tyres to a 7.5j and my current ones aren't bulging, if someone can confirm they've achieved this I'll go ahead and order them

RE Suspension, my problem isn't bottoming out persé. Even at 1mph the noes drags on low bumps, so suspension stiffness (either through springs or bump damping) isn't playing a part.
 

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Do you have the engine undertray still fitted, this is very low and will drag on many speedbumps?

I dont know if the 235/45x17 will fit, maybe some GTA owners can confirm but I dont think it will fit under the suspension upright where it curves up over the tyre. Also might be tight when you put the steering on full lock and the tyre rubs the arch liner.

The V6 can sound amazing with a variety of exhausts, this is my 2.5 V6 with a 'Wizard' exhaust :cool:

Alfa 156 V6 with Wizard exhaust - YouTube
 

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Discussion Starter · #6 ·
I presume it's still fitted yes, is there the option of replacing it with one which hugs the underside a little better?

Looking the inner wheel arch liners I'm only just getting away with my current ones, will have to go 225/45 by the look of it. Then if new tyres don't help the massive understeer I'm getting I'll look at doing the shocks.

Now, while I like your exhaust system - I LOVE this one:

Alfa GTA Exhaust - YouTube
 

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On a standard suspension, you should have enough clearance over speed bumps. As many on here, I have fitted FSD's and eibach springs, which lower the front abit and even with the standard undertray gives sufficient ground clearance for everyday driving.

I suspect that your suspension is pretty tired or you have some aftermarket lowering shocks/springs fitted.

You mention "massive understeer". As standard the understeer is not too bad, so again it points to something being a miss with the front suspension.

Whats the back end like? Does it sit much higher than the front end?


Undertrays. You can fit an aluminium one, which gives a little bit more clearance, but be careful with them, as they do have a habit of wearing the oil cooler? pipes underneath. I had one fitted and it caused quite a bit of damage, before disintegrating on the M4.... It gets quite a hard life under there! I've gone back to the standard sacrificial plastic one now, as this tends to be a bit more forgiving.

If your not up to it yourself, I'd suggest getting it in to a good specialist who can see what is fitted at present. Just doesn't sound quite right to me.

You've got a good indy in your area - Alfaaid in Maidenhead - they would be a good place to start.

Good luck!
 

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Discussion Starter · #8 · (Edited)
I'll go and get a side-on shot of the car, as yes the back sits much higher than the front.

No evidence of shocks ever being done in the ream of paperwork which accompanied the car.

Please hold caller...

EDIT: Christ don't talk to me about oil coolers. My 3000GT blew one in my previous employers' car park and I've still not got round to repairing her.
 

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I wish to check with the folks here if 235/45/17 on a 8J rims can be fitted on the GTA SW without scrapping the underside fender. I thought chances could be higher if the car is lowered but not so on a stock suspension setup. Any comments?
 
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