Shudder In R34

[DazR34]

At last!...I have my R34!! :lol:

I also have a 'shudder' when I am at a set of lights...This happens on occasions but seems to be more frequent over the past few days. The Rev's dip a bit when it happens and seems very random, usually happens in traffic....If I add a bit of juice, it seems to go away...

I have seen another topic relating to a R33 which suggested tightening the engine mounts as a resolutions??

[zaffa]

is there any mods on the cars?

[Abo Bob]

It sounds like it could be a miss at idle which could be plugs or coils. Does it have any hesitation at high rpm?

[Charly]

That could be almost anything. Please tell us what mods your car has and what you have/haven't serviced since you got it. Often a problem such as this can be solved by doing some simple maintinence that has in all likelyhood not been done for quite some time if you just got your car.

ABO bob, re the hesitation from fried plugs/coilpacks between 4500 and 5000 rpm on r33's, I found it was worst when the weather got cold and not so niticeable when the weather got hot, so it might not be that at all. Could also be air leaking from a split vacum hose, but unlikely due to the age of the r34's.

[DazR34]

Currently it is stock, Just got complinced.

I am planning to take it in for a service (only done 2K) It seems to have gone(??) but would suspect it will return. At high rev's it seems fine, just has a very slight lag at 4-5K in 3rd

That could be almost anything. Please tell us what mods your car has and what you have/haven't serviced since you got it.  Often a problem such as this can be solved by doing some simple maintinence that has in all likelyhood not been done for quite some time if you just got your car.

ABO bob, re the hesitation from fried plugs/coilpacks between 4500 and 5000 rpm on r33's, I found it was worst when the weather got cold and not so niticeable when the weather got hot, so it might not be that at all. Could also be air leaking from a split vacum hose, but unlikely due to the age of the r34's.

<{POST_SNAPBACK}>

Edited October 8, 2005 by DazR34

[Konrad]

Sounds like coilpacks, that is my problem...

[zaffa]

If you find it is the coilpacks we can suply you with high quality Splitfire coilpacks tat will never fail... www.kudosmotorsports.com

zaffa

[Charly]

Currently it is stock, Just got complinced.

I am planning to take it in for a service (only done 2K) It seems to have gone(??) but would suspect it will return. At high rev's it seems fine, just has a very slight lag at 4-5K in 3rd

<{POST_SNAPBACK}>

if you haven't ever changed the plugs I'd suggest taking out the factory unobtainium plugs and swapping them for NGK BCPR6ES's with a stock gap of .8mm. The guys at repco or wherever will try to sell you the super expensive ones. Tell them to get stuffed. if this doesn't solve your problem then you'll only be down about $20. and you can always put the old plugs back in if you really want.

was talking to dan about this the other night. He reckons it's your coilpacks. If he's right then swapping the plugs will do nothing.

[DazR34]

Thanks, will check the plugs first.