GolfGTIforum.co.uk
Model specific boards => Golf mk2 => Topic started by: roberto on 03 August 2014, 20:42
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hey guys does anyone know if a neuspeed 260 cam would be any good in a mk2 golf digifant? would it be noticeable power increase?
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Very very mild cam. Around the 268-272 is where they start to get more noticeable without ruining the drive ability.
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272 or 285 would be a better choice.
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ok thanks guys. I guess its not worth throwing 200 quid at a cam that will be barely noticeable. it does say 10bhp gain but going by the specs that does seem optimistic.
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Have you had the head ported and polished? If you have you will get bigger gains from the cam.
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no the head is bog standard. im thinking if I fit a kent gs2h cam to it then that might make up for the lack of headwork. any thoughts on this??? what cam/head are you running matty?
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I've had my 8v gti cylinder head ported and polished and it has taken the power up to 123bhp on the rolling road. The additional power comes in at 4200 revs all the way up to the red line (change gear at 6200 revs to stay in power band). Still manage to easily get 35-40mpg as well with mixed driving!
I haven't decided whether or not to upgrade the cams on mine yet as it drives so well as it is but have learned a lot from the guy who did the work on my cylinder head (he is well into his 70s and knows his stuff, been doing up engines his whole life). Turns out the first stage to doing up an engine like ours is to P&P it. If you go ahead and just stick upgraded cams on you will get gains but you are maximising the potential of it if you have P&P the head first as you will have the increased air flow.
:smiley:
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I run a TSR pack D head which is ported and polished and has larger valves (40.5mm inlet with 7mm stems and large cutback, 35mm exhaust with heavy cut back). This is run with a TSR 202 cam, three angle valve seats also. Sit that on a 2l bottom end and it goes alright. Got 35mpg out of a tank yesterday also. I have mine set up for point to point rather than top end so my cam comes in around 3500rpm but I could really do with a wilder cam considering the head work. A vernier pulley will allow the power band to be moved around and honed in if you do get a cam.
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do you notice any loss of torque lower in the revs since you had head done? and what was actually done to it? and how much it cost you?
I've had my 8v gti cylinder head ported and polished and it has taken the power up to 123bhp on the rolling road. The additional power comes in at 4200 revs all the way up to the red line (change gear at 6200 revs to stay in power band). Still manage to easily get 35-40mpg as well with mixed driving!
I haven't decided whether or not to upgrade the cams on mine yet as it drives so well as it is but have learned a lot from the guy who did the work on my cylinder head (he is well into his 70s and knows his stuff, been doing up engines his whole life). Turns out the first stage to doing up an engine like ours is to P&P it. If you go ahead and just stick upgraded cams on you will get gains but you are maximising the potential of it if you have P&P the head first as you will have the increased air flow.
:smiley:
I've had my 8v gti cylinder head ported and polished and it has taken the power up to 123bhp on the rolling road. The additional power comes in at 4200 revs all the way up to the red line (change gear at 6200 revs to stay in power band). Still manage to easily get 35-40mpg as well with mixed driving!
I haven't decided whether or not to upgrade the cams on mine yet as it drives so well as it is but have learned a lot from the guy who did the work on my cylinder head (he is well into his 70s and knows his stuff, been doing up engines his whole life). Turns out the first stage to doing up an engine like ours is to P&P it. If you go ahead and just stick upgraded cams on you will get gains but you are maximising the potential of it if you have P&P the head first as you will have the increased air flow.
:smiley:
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I run a TSR pack D head which is ported and polished and has larger valves (40.5mm inlet with 7mm stems and large cutback, 35mm exhaust with heavy cut back). This is run with a TSR 202 cam, three angle valve seats also. Sit that on a 2l bottom end and it goes alright. Got 35mpg out of a tank yesterday also. I have mine set up for point to point rather than top end so my cam comes in around 3500rpm but I could really do with a wilder cam considering the head work. A vernier pulley will allow the power band to be moved around and honed in if you do get a cam.
:shocked:crikey that sounds like a pretty trick head you have there. is pack d not a bit extreme for a road car?
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so im thinking maybe an agg bottom end/standard head and gs2h cam.could anyone tell me what amount I should skim off the head for this engine combo? and also what power it will put out?
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I actually got the head off a guy with the cam for £150. When it went in for some more work it had two bent exhaust valves, I was gunna switch them out for some I had off my original head. Found out they didn't fit, measured all the valves and realised they were all oversized. Out of all the TSR head (knew it was a TSR head) the pack d was the only one with the same sized valves. Pretty lucky tbh. The agg bottom end gives tones of torque compared to the 1.8, find myself going everywhere in a higher gear.
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do you notice any loss of torque lower in the revs since you had head done? and what was actually done to it? and how much it cost you?
No loss of torque lower down, drives similarly/slightly better as before but has added power at the top end. As I said before, my power band is now between 4200 revs up to the red line pretty much, so when driving normally I still get the benefits of frugal fuel consumption but when I want it the extra power is there. Even though its only a small gain in power it is very noticable due to the lightness of the car and the fact it was previously under power (103bhp - supposed to be 112bhp). Now max power stands at 123bhp.
Just had the cylinder head ported and poilshed along with new valves and valve guides. Was looking into getting bigger valves but was advised against it as more often than not it offers no major gain and is more cost to modify.
Drives extremely well now, still feels very responsive and torquey low down as it should, the only other mod I have is the K&N panel filter. My exhaust is OEM.
Can't remember cost exactly but it was around £700. The head needed to come off anyway to investigate when it was smoking so much which was a combination of old valves and leaking head gasket. Therefore I thought if I'm going to get it ported and polished now was the time whilst the head was off anyway. Cams is less labour as you don't need to take the head off to do it.
All in all I'm chuffed with it and love driving my mk2!
(http://i828.photobucket.com/albums/zz204/scattymatty85/bhp_zpsf41282ed.jpg) (http://s828.photobucket.com/user/scattymatty85/media/bhp_zpsf41282ed.jpg.html)
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was that a drive in/ drive out price? if so then that is pretty decent for 10% power increase :wink:
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hey guys. any suggestions on a head skim amount? im thinking maybe 10/15 thou to go with a mild road cam. does that sound about right?
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There is a guy called mr.hillclimber on club gti that builds race heads. He has some it's 8v engines. It's important to match the compression with the cam so go and ask him. He is the best Person I know who will know the right compression for each cam.
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im not actually a member on club gti. to expensive :grin:. im just going to get it skimmed 15 thou. if it started pinging I can always pull the ignition timing back slightly :smiley:
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You don't have to be a member to email him but it does help.
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yeah suppose so but going by my research 15 thou seems a fair compromise. if you over skim then you can adjust timing to compensate but if you under skim then you've had it :grin:
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Or you over skim and the valves smash the f**k out of the themselves on the pistons. Do you know if that head has ever been skimmed before and by how much?
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Or you over skim and the valves smash the f**k out of the themselves on the pistons. Do you know if that head has ever been skimmed before and by how much?
I said 15thou not 15 inches :grin:. I am quite sure there is plenty room for the pistons and valves to get along fine in them engines. one owner car for 19years before I got it and no mention of the head been off. unless it has been off within the first 4 yrs on the road but I doubt that.
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Only saying as my head had two bent exhaust valves when removed.