Hude thumbs up for API (again)
01 February 2007, 06:18 PM
#1
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Hude thumbs up for API (again)
Recently had a full PPG gearset and uprated steel selector forks built into my 02 WRX gearbox.
Also while it was out a lightened flywheel was bolted on, and why not an uprated Exedy 500HP clutch
Amazing customer service from start to finish with my car being delivered to my door on completion.
It sounds amazing and drives like a different car now, cant recommend this company enough
Thanks David, and all the team at API
Cookie
Also while it was out a lightened flywheel was bolted on, and why not an uprated Exedy 500HP clutch
Amazing customer service from start to finish with my car being delivered to my door on completion.
It sounds amazing and drives like a different car now, cant recommend this company enough
Thanks David, and all the team at API
Cookie
01 February 2007, 07:04 PM
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so you would reccomenddoes it sound like this YouTube - PPG whine
you have gone for the setup I have penciled on my order
01 February 2007, 07:49 PM
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01 February 2007, 07:52 PM
#8
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Done some looking ....
"Straight cut gearsets are relatively noisy in operation and have an inherent whine to them. This is due to the meshing of the teeth when the gears are rotating.
The meshing of straight cut teeth gives total contact along the tooth at all times which gives the straight cut tooth its added strength over the helically cut tooth"
The question remains WHY?? WHY?? Unless you are about to go on a Rally Stage with a 600BHP+ Scooby it is pointless, absolutely pointless ....
"Straight cut gearsets are relatively noisy in operation and have an inherent whine to them. This is due to the meshing of the teeth when the gears are rotating.
The meshing of straight cut teeth gives total contact along the tooth at all times which gives the straight cut tooth its added strength over the helically cut tooth"
The question remains WHY?? WHY?? Unless you are about to go on a Rally Stage with a 600BHP+ Scooby it is pointless, absolutely pointless ....
01 February 2007, 07:53 PM
#9
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I appreciate engineering .......
This is a good image ... http://www.ppgearbox.com.au/images/content/WRXDOG.jpg
Pointless in a Road Car.
This is a good image ... http://www.ppgearbox.com.au/images/content/WRXDOG.jpg
Pointless in a Road Car.
01 February 2007, 08:13 PM
#10
The majority of Motorcycle gearbox's,Drag Racers,Hill Climbers etc will use a straight cut gear set for strength and most importantly less drag(sliding friction between the teeth in mesh).
It is important to understand a helical gear set in a Constant Mesh Gearbox will produce tremendous side loads at high torque conditions, thus requiring additional thrust bearings and sometimes a stronger ribbed transmission case.
Helical Gear Set's are quieter,and most manufacturer's use them to lower the NVH levels transmitted into the Interior of the car.
The Whine of the Straight Cut gears get's my Vote
It is important to understand a helical gear set in a Constant Mesh Gearbox will produce tremendous side loads at high torque conditions, thus requiring additional thrust bearings and sometimes a stronger ribbed transmission case.
Helical Gear Set's are quieter,and most manufacturer's use them to lower the NVH levels transmitted into the Interior of the car.
The Whine of the Straight Cut gears get's my Vote
01 February 2007, 08:30 PM
#12
Pete:
I think Cookstar is heading for 600 bhp!
You can get the ppg in helical synchro too.
I'm surprised how quiet it is! (especially at speed).
Just listen to any Mini with a Jack Knight straight cut box...he will be the one you can hear a mile away.
I think Cookstar is heading for 600 bhp!
You can get the ppg in helical synchro too.
I'm surprised how quiet it is! (especially at speed).
Just listen to any Mini with a Jack Knight straight cut box...he will be the one you can hear a mile away.
01 February 2007, 11:40 PM
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Pete, normally your tolerated, but if you have nothing positive to say stay the **** out of this thread. It was posted to say thanks for a top job done for me. Not for you to wind people up.
Goodnight
Goodnight
02 February 2007, 07:53 AM
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Cookstar do you have the syncro box or the dog version?
If you have the syncro version have u got any issues with 3rd at all?
What oil is in it?
Dan.
If you have the syncro version have u got any issues with 3rd at all?
What oil is in it?
Dan.
02 February 2007, 12:45 PM
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That gearbox is straight cut synchro. Cookie would have broken a helical so the straight is/was the only way.
The issues with 3rd gear fitment etc., are well known here and hinge around selective forks and selector rails to match and also careful shimming of the mainshaft in relation to the mating gear set and shaft.
Synthetic 75W90
Built properly there is no issue.
David APi
The issues with 3rd gear fitment etc., are well known here and hinge around selective forks and selector rails to match and also careful shimming of the mainshaft in relation to the mating gear set and shaft.
Synthetic 75W90
Built properly there is no issue.
David APi
Last edited by APIDavid; 02 February 2007 at 12:47 PM. Reason: clarification
02 February 2007, 01:16 PM
#17
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My post merely asked why someone would want such a noise that sounds like the gearbox is knackered .... not a wind up so wind your neck in!
And, yes, I have no doubt whatsoever that API did a fantastic job - they seem to do that as a matter of course ... I did NOT suggest otherwise!!
So, just because you have spent a fortune on making your car sound like a knackered LADA ........... and someone comments on it - don't start bloody crying!!
Like I said ... I appreciate the engineering and for 600+BHP it may have a use - but, for a road car - it is just playing at being a Rally Wannabbee and thats the truth - like it or not!
02 February 2007, 01:45 PM
#18
Interesting about the set-up on 3rd.
I've read that quite a few have found that 3rd 'nicks' a bit at times, especially when rushed and i had put it down to synchro ring fit and oil.
I have had my trans worked-on by API, and their customers all know the top draw service they give and at fair prices, and praise should be given (even when you have paid for it Pete!)
As to such a 'box in a car (road or otherwise), it's your car, and many will tolerate the compromise of a modification for the moments of performance where the mod truly delivers.
If I needed to used such a transmission to ensure the car would not break on the track then that's fine by me, especially as so many Impreza's are now weekend-warriors.
I could always buy a trailer, but what a pain! (far more than ear ache!)
Cookstar/David: Is 5th stock?
Graham.
I've read that quite a few have found that 3rd 'nicks' a bit at times, especially when rushed and i had put it down to synchro ring fit and oil.
I have had my trans worked-on by API, and their customers all know the top draw service they give and at fair prices, and praise should be given (even when you have paid for it Pete!)
As to such a 'box in a car (road or otherwise), it's your car, and many will tolerate the compromise of a modification for the moments of performance where the mod truly delivers.
If I needed to used such a transmission to ensure the car would not break on the track then that's fine by me, especially as so many Impreza's are now weekend-warriors.
I could always buy a trailer, but what a pain! (far more than ear ache!)
Cookstar/David: Is 5th stock?
Graham.
Last edited by 911; 02 February 2007 at 01:47 PM.
02 February 2007, 03:04 PM
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Tolerated?? Who the hell do you think you are??
My post merely asked why someone would want such a noise that sounds like the gearbox is knackered .... not a wind up so wind your neck in!
And, yes, I have no doubt whatsoever that API did a fantastic job - they seem to do that as a matter of course ... I did NOT suggest otherwise!!
So, just because you have spent a fortune on making your car sound like a knackered LADA ........... and someone comments on it - don't start bloody crying!!
Like I said ... I appreciate the engineering and for 600+BHP it may have a use - but, for a road car - it is just playing at being a Rally Wannabbee and thats the truth - like it or not!
My post merely asked why someone would want such a noise that sounds like the gearbox is knackered .... not a wind up so wind your neck in!
And, yes, I have no doubt whatsoever that API did a fantastic job - they seem to do that as a matter of course ... I did NOT suggest otherwise!!
So, just because you have spent a fortune on making your car sound like a knackered LADA ........... and someone comments on it - don't start bloody crying!!
Like I said ... I appreciate the engineering and for 600+BHP it may have a use - but, for a road car - it is just playing at being a Rally Wannabbee and thats the truth - like it or not!
I knew you would like that word
Fair enough
02 February 2007, 05:10 PM
#24
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Yeah, can we have an engine where the big-ends are 2mm oversize (but the crank isn't) ...... glue up the valve lash adjusters so that they have plenty of clearance ...... over rich the mixture so that it runs like a pig ...... should give the kind of 'Knackered' noise you are looking for?? 
Loosen up all the wheel nuts and then it will drive just how it sounds
Loosen up all the wheel nuts and then it will drive just how it sounds
02 February 2007, 05:28 PM
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Interesting about the set-up on 3rd.
I've read that quite a few have found that 3rd 'nicks' a bit at times, especially when rushed and i had put it down to synchro ring fit and oil.
I have had my trans worked-on by API, and their customers all know the top draw service they give and at fair prices, and praise should be given (even when you have paid for it Pete!)
As to such a 'box in a car (road or otherwise), it's your car, and many will tolerate the compromise of a modification for the moments of performance where the mod truly delivers.
If I needed to used such a transmission to ensure the car would not break on the track then that's fine by me, especially as so many Impreza's are now weekend-warriors.
I could always buy a trailer, but what a pain! (far more than ear ache!)
Cookstar/David: Is 5th stock?
Graham.
I've read that quite a few have found that 3rd 'nicks' a bit at times, especially when rushed and i had put it down to synchro ring fit and oil.
I have had my trans worked-on by API, and their customers all know the top draw service they give and at fair prices, and praise should be given (even when you have paid for it Pete!)
As to such a 'box in a car (road or otherwise), it's your car, and many will tolerate the compromise of a modification for the moments of performance where the mod truly delivers.
If I needed to used such a transmission to ensure the car would not break on the track then that's fine by me, especially as so many Impreza's are now weekend-warriors.
I could always buy a trailer, but what a pain! (far more than ear ache!)
Cookstar/David: Is 5th stock?
Graham.
Graham ? Only that yellow one, is not a Subaru shape I recognise.
David APi
Bits are waiting for you - just ' hanging around '
02 February 2007, 08:20 PM
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Yeah, can we have an engine where the big-ends are 2mm oversize (but the crank isn't) ...... glue up the valve lash adjusters so that they have plenty of clearance ...... over rich the mixture so that it runs like a pig ...... should give the kind of 'Knackered' noise you are looking for??
Loosen up all the wheel nuts and then it will drive just how it sounds
Loosen up all the wheel nuts and then it will drive just how it sounds
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