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Discussion Starter #1
Hi all. Its autumn now and my gtv6 is hibernating for the winter and as mentioned in another post Ive bought a 164 super to run over the winter.when i first bought it it had 118,000 miles on and the last cambelt was changed at 63,000 so i was nursing it for the first couple of weeks untill i could get the belts changed.Well now there all done ive been able to open her up a bit and :):):):).140mph up a long gradient wow.
I have noticed though that at low rpm it takes a while to accellerate which didnt seem the case in the 12valve 164 i had a couple of years ago and also the gtv ( which i took greg gordons adivce on about the afm spring).
Ive read in a few of your posts and apparentley the 45mm intakes will transform the 210bhp motor into a 230bhp motor
so my next question is has anyone got any for sale.
Also can it be possible to alter the airflow spring on the 164 like you guys do on the gtv6
Thanks again in advance

Will post a pic of the car with its new wheels on soon
 

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You didn't mention, so we're assuming your super is a 24V not a 12V. The 45 mm runners work on 24V cars, not on 12V.
 

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Discussion Starter #4
Yes the super here is the 24v engine not the twelve valve.I know there called different things over in the states ls s q and I get a a bit confused
 

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Yes the super here is the 24v engine not the twelve valve.I know there called different things over in the states ls s q and I get a a bit confused
No what you have in picture is a LS in USA not Q. LS rated at 210 hp, Q with larger intake runners rated at 230 hp.

You have 5-speed or automatic? both are geared higher than Q so will not have low end grunt of a Q even if you do install larger intake runners as Torque and lower gearing is what moves you off the line.

If a real slow going sled off the line maybe your cam timing is not 100% correct. Did you use timing dies on cams and a dial indicator to set up a perfect TDC? Even the slightest advance in cam timing off TDC will effect low end power.
 

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Discussion Starter #6
it was done by alfatech a independant specialist here in the UK so i wouldnt know. The transmission is 5 spped manual. I wouldnt say its real slow off the line but just as you mentioned not as torquey as id expect.I do realise after reading various posts that it wouldnt be a Q (or cloverleaf as there called here) but i like the sound of the extra BHP.
What in your opinion would the ls be like with the 45mm runners.and how do the transmissions differ between the two
Thanks for your input.
 

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it was done by alfatech a independant specialist here in the UK so i wouldnt know. The transmission is 5 spped manual. I wouldnt say its real slow off the line but just as you mentioned not as torquey as id expect.I do realise after reading various posts that it wouldnt be a Q (or cloverleaf as there called here) but i like the sound of the extra BHP.
What in your opinion would the ls be like with the 45mm runners.and how do the transmissions differ between the two
Thanks for your input.
Final gear ratio for Q is lower than LS so LS will be slower off the start even with runners. What does the sound of extra BHP sound like?

IMHO exhaust sound is different between single oval outlet pipe on LS and dual outlet pipes on Q but the extra 20 bhp probably isn't what makes the sound different.

I run S dual pipe rear mufflers on my B models and one have triangle mid muffler and other has round mid muffler and both sound good but a bit different sound. My 93L runs stock triangle and single outlet pipe and is super silent all 3 engines have same BHP.
 

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Discussion Starter #8
Sorry steve, I didnt mean the literal sound I meant the idea of 20 extra bhp
probalbly my poor use off english.
 

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Discussion Starter #10
Getting back to the original question does anyone have any 45mm intakes to sell either in the uk or in the states and will they make any difference to the performance of my LS/super
 

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Difatta sells them, as well as Jason (Alfissimo).

Yes, they do make a difference. Look at this site:
164 24v QV Inlaatbuizen modificatie

The final drive ratio difference between the LS and the Q is small, about half, (3.353 vs 3.412), compared to the difference between the B/L and the S models (3.733 vs 3.867). Or in other numbers, 0.9828 vs 0.9654. I doubt you could tell the difference between the LS and the Q in most circumstances due to just that.
 

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As Del mentions, Jason at Alfa Romeo OEM and Performance Parts- Tel: +1 480-858-9156 sells the larger runners (US site). You may be able to do better locally on price with fewer overhead issues (avoiding trans-Atlantic freight from there to here and then back, double duties, etc.). EB Spares? I can't recall the English concern's name exactly.

Squadra sells chips which are supposed to aid the low-end torque of the car, too. Jason also sells those. He might be able to arrange drop shipments from European sources to you, too. I'm just not familar with your sources over there.

Michael

Wow. The alfabb took my website URL for Jason's shop and turned it into a description with the URL hidden. Must be a new feature.
 

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Getting back to the original question does anyone have any 45mm intakes to sell either in the uk or in the states and will they make any difference to the performance of my LS/super
I have them in-stock and ready to go if needed. Easy install and 20hp gain, simple as that. That is the only difference in the motors.
I can also drop ship it from Italy to you if you feel the need but have to charge VAT.
With you GBP always doing way better than the dollar these should be a good deal for you even if shipped from US.
Jason
 

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Discussion Starter #14
Thanks all
Concerning gearing Ive actually gone down slightly on the tyre diameter 215/40/17 which according to most tyre calculators should actually be 215/45/17 to match the original 205/55/16 so that will alter the gearing a little
How much are the new ones including shipping etc to yorkshire england
Ive tried eb spares but they say they dont sell them.
thanks again in advance
 

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Discussion Starter #15
I have them in-stock and ready to go if needed. Easy install and 20hp gain, simple as that. That is the only difference in the motors.
I can also drop ship it from Italy to you if you feel the need but have to charge VAT.
With you GBP always doing way better than the dollar these should be a good deal for you even if shipped from US.
Jason
How much would they be shipped to yorkshire england
pm me if you prefer
 

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As Del mentions, Jason at Alfa Romeo OEM and Performance Parts- Tel: +1 480-858-9156 sells the larger runners (US site)

....Squadra sells chips which are supposed to aid the low-end torque of the car, too. Jason also sells those. .
Can anyone comment on how effective these are? The intake runners would be nice, but the 164 24v needs low end torque. The runners I imagine help at the high end. Does the chip really work for the low end??
 

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I looked for it and couldn't find it. Here it is, complete with the dash between squadra and tuning. Michael

.: Squadra Tuning :.

Their graphs indicate between 5% and 10% improvements in torque for the 12V (power too -- variable across the 2000-6500 RPM band), and from about 15% at 2000 RPM ranging fairly smoothly down to 5% at 7000 RPM for the 24V.
 

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Discussion Starter #19
I would comment on the 45mm runners but i am still unable to source some .spoke to squadra tuning this morning and they too are out of stock and have emailed them to put myself on there waiting list.
 

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If the runners are larger, but the intake holes are not any bigger, how do they improve performance?
 
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