Author | Topic |
Krister K Starting Member
Sweden 36 Posts | Posted - 24 Feb 2015 : 13:58:38
| For this engine I will use Sweedspeed´s head gaskets, it is std type modified for up to 94.0mm bore.
Saab 96 v4 '75b | |
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Krister K Starting Member
Sweden 36 Posts | Posted - 02 Mar 2015 : 19:37:41
| Some photos on the engine if you want to see..:
Saab 96 v4 '75b | |
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Krister K Starting Member
Sweden 36 Posts | Posted - 09 Mar 2015 : 20:12:39
| How do you guys solve the valve train geometry when using a reground camshaft? I could use some longer pushrods. Is there longer pushrods "of the shelf" from some other engine/make that is usable, or is custom made the only way?
Saab 96 v4 '75b | |
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Krister K Starting Member
Sweden 36 Posts | |
melle V4 Guru
United Kingdom 3833 Posts | Posted - 28 Mar 2015 : 09:15:20
| Great news! What did you do with the push rods in the end?
1970 96V4 "The Devil's Own V4" 1977 95V4 van conversion project 1988 900i 8V | |
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Krister K Starting Member
Sweden 36 Posts | Posted - 28 Mar 2015 : 18:01:14
| quote: Originally posted by melle Great news! What did you do with the push rods in the end?
I used std pushrods, and lowered the valve train (?) instead. Std procedure. I think I made a problem of something that really isn`t a problem.
Saab 96 v4 '75b | |
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Krister K Starting Member
Sweden 36 Posts | Posted - 03 Dec 2015 : 20:50:07
| The engine is in parts again since a couple of months back due to excessive "pinging". Fettling with ignition timing and carb jetting didn´t solve the problem. Did my math and came up with a comp ratio of about 12:1, so off went the heads.
Now I have adjusted the cc of the combustion chambers, so I will have a comp ratio of ~10.5:1.
Did some more work around the valveguides too:
Bought a new 7.6 camshaft and lighter lifters (81g) to replace the UA12 cam/std lifters for some more low/midrange power. The 81g lifters are Ford v8 "Nascar" lifters bought from US: http://www.ebay.com/itm/NASCAR-Lightweight-81-gram-Ford-221-thru-460-Mech-Flat-Face-Solid-Lifters-/201466630068?hash=item2ee858cfb4:m:mJaatw00h16fUGIeg50CFrg&vxp=mtr
Heads are at the work shop right now being resurfaced as they where a bit warped.
Saab 96 v4 '75b | |
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melle V4 Guru
United Kingdom 3833 Posts | Posted - 03 Dec 2015 : 21:43:13
| Wow, do those Nascar tappets fit the standard bores? They're amazingly cheap compared to standard V4 tappets!
www.saabv4.com | |
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Krister K Starting Member
Sweden 36 Posts | Posted - 04 Dec 2015 : 08:35:09
| They are a perfect fit, except length wise, the pushrod sits approx. 3mm higher in the v8 lifter. I think the adjusters can handle it though... :-)
Saab 96 v4 '75b | |
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melle V4 Guru
United Kingdom 3833 Posts | |
Krister K Starting Member
Sweden 36 Posts | |
James Ranaldi V4 Guru
United Kingdom 1475 Posts | Posted - 18 Dec 2015 : 09:05:56
| Good morning Krister,
Great work . . . . . Your engine sounds wonderful. I now have a very large smile on my face Cheers James
1968 V4, LHD 1984 99 GL 1992 900i Convertible
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Krister K Starting Member
Sweden 36 Posts | Posted - 18 Dec 2015 : 20:56:51
| quote: Originally posted by James Ranaldi Good morning Krister,
Great work . . . . . Your engine sounds wonderful. I now have a very large smile on my face Cheers James
Glad you like it!
Took the car for a quick spin today, runs really good. Lower midrange really benefitted from change of cam.
Saab 96 v4 '75b | |
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Krister K Starting Member
Sweden 36 Posts | Posted - 21 Dec 2015 : 19:51:35
| Not only has the engine been upgraded, I´ve done some on the exterior as well:
Done some adjustments on carb jetting and ignition timing yesterday with pleasing result. No problem engaging fourth @ 2000rpm and it pulls strong to 5500rpm with no hesitation. I can surely go to 6500rpm, but I will put some more miles on the cam/lifters first.
This must be as fun as you can have with your clothes on!?
Saab 96 v4 '75b | |
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Krister K Starting Member
Sweden 36 Posts | Posted - 13 Jan 2016 : 20:56:11
| Winter is here since a couple of weeks back. We need some kind of traction control... :-)
This is great fun on icy roads! :-D
Saab 96 v4 '75b | |
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