Congratulations to vtecmec for winning May/June's Lude Of The Month, with his DIY Turbo BB1 build.
>>> Click Here For Profile <<<
>>> Click Here For Profile <<<
Camshaft lobe dimensions
- James 5th gen
- Posts: 201
- Joined: Thu Sep 29, 2016 10:43 pm
- My Generation: 5G
- Been thanked: 4 times
Camshaft lobe dimensions
So I picked up a set of “a7” cams a few weeks back and before I go through the trouble of installing them, I would like to know if they are indeed a7 cams. The last thing I want to do is put the same cams in.
Is there anyway to check other than measuring? And if not does anyone know the measurements? Thanks guys
Ps. If they are the correct cams I have a whole lot more questions on the way, or If I could have a chat with someone who has done it before that’ll be great
Is there anyway to check other than measuring? And if not does anyone know the measurements? Thanks guys
Ps. If they are the correct cams I have a whole lot more questions on the way, or If I could have a chat with someone who has done it before that’ll be great
- vanzep
- Supporter 2016
- Posts: 7010
- Joined: Sun Jan 29, 2012 6:38 pm
- My Generation: 4G
- Location: Edinburgh
- Has thanked: 266 times
- Been thanked: 423 times
Ive checked A1 cam dimensions against A8 cams before but cant remember dimensions - there wasnt a lot of difference in size but they do make quite a difference when fitted.
Im sure there is a part number stamped in between the lobes and this will be the easiest way to check.
nafeman or 4thgenphil will know what the part numbers are
my spare A1 cams are stamped A on the exhaust cam and B on the intake cam
Im sure there is a part number stamped in between the lobes and this will be the easiest way to check.
nafeman or 4thgenphil will know what the part numbers are
my spare A1 cams are stamped A on the exhaust cam and B on the intake cam
1996-2000 1993 EG9 Blue Civic 1.6 Vti - Traded in against the BB4
2000-2019 1994 2WS BB4 Milano Red JDM Prelude Si VTEC LSD
2015 on > 1991 4WS BB1 Phantom Pearl Grey JDM Prelude Si VTEC LSD
2021 ON > 1998 2WS BB6 White Pearl JDM Prelude Si VTEC
2000-2019 1994 2WS BB4 Milano Red JDM Prelude Si VTEC LSD
2015 on > 1991 4WS BB1 Phantom Pearl Grey JDM Prelude Si VTEC LSD
2021 ON > 1998 2WS BB6 White Pearl JDM Prelude Si VTEC
- hondaddict
- Posts: 275
- Joined: Sun Mar 06, 2016 2:51 pm
- My Generation: 3G
- Been thanked: 1 time
Here the mesurement of the A7 camshaft, that are exactly the same than the 5thgen Prelude Type S, the good values are the "m/t with atts"
As you can see ( and said before by vanzep) the difference between the "normal" camshaft and the "TypeS/ TypeR" camshaft are not very big.
As you can see ( and said before by vanzep) the difference between the "normal" camshaft and the "TypeS/ TypeR" camshaft are not very big.
Accord Type R , "what else"
- James 5th gen
- Posts: 201
- Joined: Thu Sep 29, 2016 10:43 pm
- My Generation: 5G
- Been thanked: 4 times
- James 5th gen
- Posts: 201
- Joined: Thu Sep 29, 2016 10:43 pm
- My Generation: 5G
- Been thanked: 4 times
just had a measure up and it looks like i have the good ones not bad for only £41.
i will be looking at doing these in the next 2 months, can someone point me in the right direction for a good head rebuild guide? I've seen the cam swap post but half the pictures are missing. i also got a load of springs with the cams, should i buy new ones or are they okay? i also assume they are a different spring rate to the ones in my a5?
sorry for all the questions, i just dont know a lot about engine work and dont want to get anything wrong. thanks
i will be looking at doing these in the next 2 months, can someone point me in the right direction for a good head rebuild guide? I've seen the cam swap post but half the pictures are missing. i also got a load of springs with the cams, should i buy new ones or are they okay? i also assume they are a different spring rate to the ones in my a5?
sorry for all the questions, i just dont know a lot about engine work and dont want to get anything wrong. thanks
- wurlycorner
- Ye are glad to be dead, RIGHT?
- Posts: 21266
- Joined: Sat May 19, 2012 3:33 pm
- My Generation: 4G
- Location: Chelmsford, Essex
- Has thanked: 2089 times
- Been thanked: 256 times
- James 5th gen
- Posts: 201
- Joined: Thu Sep 29, 2016 10:43 pm
- My Generation: 5G
- Been thanked: 4 times
Re: Camshaft lobe dimensions
Sorry to be a pain guys and ask again, I cannot find any information on the spring rates so if some one knows the answer that'll be nice
I want to put a7 cams into my a5, can i straight swap them without changing the valve springs? and if i can't do this is there a difference between springs on the inlet and exhaust side? i wouldn't like to get them mixed up if that's the case.
I want to put a7 cams into my a5, can i straight swap them without changing the valve springs? and if i can't do this is there a difference between springs on the inlet and exhaust side? i wouldn't like to get them mixed up if that's the case.
- Vtecmec
- LotM Winner
- Posts: 5401
- Joined: Fri Aug 06, 2010 5:43 pm
- My Generation: 4G
- XBOX GamerTag: vtecmec
- Location: East Midlands
- Has thanked: 128 times
- Been thanked: 378 times
Re: Camshaft lobe dimensions
You can swap just the cams and you'll be fine, and no difference on intake v's exhaust springs.