Forum: projects & restorations
01-23-2021, 03:42 AM
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Replies: 116
Views: 78,205
Tighter clearances will reduce idle vacuum...
Tighter clearances will reduce idle vacuum further, but it's not a large cam so it shouldn't really matter. You don't want to go too tight on a turbo car's exhaust lobes to reduce the heat that goes...
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Forum: performance & modifications
01-23-2021, 03:17 AM
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Replies: 75
Views: 22,566
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Forum: performance & modifications
01-23-2021, 03:00 AM
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Replies: 32
Views: 9,446
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Forum: performance & modifications
01-23-2021, 03:00 AM
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Replies: 15
Views: 3,566
How did winter break go? Did you and the kids...
How did winter break go? Did you and the kids slap some fun into the car? :)
Use either timing gear, it'll be no problem. Just don't tighten the adjustment bolts too tight on the MVP gear. What is...
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Forum: projects & restorations
12-16-2020, 08:04 PM
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Replies: 28
Views: 10,782
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Forum: performance & modifications
12-15-2020, 09:20 PM
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Replies: 73
Views: 17,017
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Forum: performance & modifications
12-11-2020, 01:48 PM
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Replies: 73
Views: 17,017
Why do you want to see stock intake and exhaust...
Why do you want to see stock intake and exhaust ports for a basic 398 head? If you want to learn something, I suggest looking at Erland Cox's website: https://www.topplocksverkstan.se/omforetaget.html
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Forum: performance & modifications
12-10-2020, 01:14 PM
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Replies: 73
Views: 17,017
I can see them when on the non-secure, http://...
I can see them when on the non-secure, http:// version of the site.
In any case, have you measured piston to block deck height yet? I'm curious of your new compression ratio(and when it'll go back...
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Forum: performance & modifications
12-09-2020, 12:23 PM
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Replies: 73
Views: 17,017
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Forum: performance & modifications
12-09-2020, 12:14 PM
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Replies: 19
Views: 4,127
Ha! :)
Also, the amount of flow that is...
Ha! :)
Also, the amount of flow that is coming out of the valve opening is not evenly distributed all the way around the circle opening. There is some port bias and more flow going through some...
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Forum: performance & modifications
12-07-2020, 06:30 PM
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Replies: 31
Views: 6,845
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Forum: performance & modifications
12-04-2020, 05:07 PM
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Replies: 73
Views: 17,017
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Forum: performance & modifications
12-04-2020, 04:56 PM
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Replies: 12
Views: 3,222
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Forum: performance & modifications
12-03-2020, 12:08 PM
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Replies: 12
Views: 3,222
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Forum: performance & modifications
12-01-2020, 07:33 PM
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Replies: 27
Views: 3,830
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Forum: performance & modifications
11-29-2020, 02:17 AM
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Replies: 125
Views: 22,211
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Forum: performance & modifications
11-26-2020, 07:29 PM
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Replies: 125
Views: 22,211
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Forum: performance & modifications
11-25-2020, 07:31 PM
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Replies: 27
Views: 3,830
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Forum: performance & modifications
11-24-2020, 06:08 PM
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Replies: 125
Views: 22,211
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Forum: performance & modifications
11-24-2020, 05:55 PM
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Replies: 125
Views: 22,211
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Forum: performance & modifications
11-24-2020, 05:36 PM
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Replies: 125
Views: 22,211
Awesome! Well, you can always order a thicker...
Awesome! Well, you can always order a thicker headgasket to reduce the compression some if the torque is limited by fuel quality and detonation if the .027" is too much at 13:1 or so. If you're...
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Forum: performance & modifications
11-24-2020, 01:55 PM
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Replies: 125
Views: 22,211
With that information and assuming your piston...
With that information and assuming your piston height is 100% even with the height of the block’s deck surface, these are some compression ratios you could achieve with varying headgasket thicknesses...
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Forum: performance & modifications
11-24-2020, 01:35 PM
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Replies: 125
Views: 22,211
I don't know about the bore sizing with the...
I don't know about the bore sizing with the letters, but I do have a new set of 0376402 Mahle Original 96.610mm(cylinder diameter written on the box) B230A/E/K pistons here for measuring! The piston...
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Forum: performance & modifications
11-24-2020, 12:30 PM
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Replies: 75
Views: 22,566
I looked in a box of misc. bits and found a...
I looked in a box of misc. bits and found a washer in there!
It's 1.9mm thick and 36.6mm in diameter. The inside bore seems to be 19.9mm and the inside bore + the height of the notch for the cam...
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Forum: performance & modifications
11-23-2020, 07:08 PM
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Replies: 23
Views: 22,106
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Forum: performance & modifications
11-23-2020, 07:06 PM
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Replies: 125
Views: 22,211
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Forum: performance & modifications
11-23-2020, 02:35 PM
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Replies: 7
Views: 1,615
That looks fun! What year and fuel injection?
...
That looks fun! What year and fuel injection?
When you say you ported the exhaust side of the head, are you saying you opened up the ports where they go into the factory exhaust manifold? That...
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Forum: performance & modifications
11-23-2020, 02:28 PM
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Replies: 125
Views: 22,211
If only the people at KL Racing would tell us...
If only the people at KL Racing would tell us WHAT LIFT the 300° of duration is measured at, we might have SOME idea of what the heck that camshaft is good for. It won't tell us valve opening/closing...
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Forum: performance & modifications
11-23-2020, 02:27 PM
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Replies: 2
Views: 1,288
It will be sluggish/weak at low rpm, especially...
It will be sluggish/weak at low rpm, especially on a 2.0L without increased compression, but it'll work fine. Set the valve clearances loose to help idle quality and off idle torque, like .45-.5mm if...
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Forum: performance & modifications
11-22-2020, 02:51 AM
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Replies: 125
Views: 22,211
Definitely because SCR is easy to...
Definitely because SCR is easy to measure/calculate. You can adjust ignition timing to suit as needed for your camshaft’s duration(within reason).
DCR is hard to calculate because valve timing...
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Forum: performance & modifications
11-21-2020, 03:55 AM
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Replies: 24
Views: 2,691
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Forum: performance & modifications
11-21-2020, 03:54 AM
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Replies: 125
Views: 22,211
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Forum: performance & modifications
11-20-2020, 05:41 PM
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Replies: 24
Views: 2,691
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Forum: performance & modifications
11-20-2020, 03:09 PM
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Replies: 75
Views: 22,566
:cool:
Sounds good!
Regarding the...
:cool:
Sounds good!
Regarding the timing belt riding on the front of the cam's gear, sometimes you need to run a washer between the cam and the cam gear. We have to run one on our setup that is...
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Forum: performance & modifications
11-19-2020, 06:27 PM
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Replies: 125
Views: 22,211
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Forum: performance & modifications
11-19-2020, 03:52 PM
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Replies: 73
Views: 17,017
:cool:
I also hope that the header isn't...
:cool:
I also hope that the header isn't designed for your exact current setup when you have plans to one day take it to a higher level with the additional shave, intake valve and cam. Excited for...
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Forum: performance & modifications
11-19-2020, 02:13 PM
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Replies: 75
Views: 22,566
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Forum: performance & modifications
11-19-2020, 03:53 AM
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Replies: 24
Views: 2,691
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Forum: performance & modifications
11-19-2020, 02:45 AM
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Replies: 24
Views: 2,691
Harald's car is turbo, hence the low static...
Harald's car is turbo, hence the low static compression ratio.
I remembered that after you said yours weren't the Yoshifabs. :) Harald's car feels like a slug down low compared to when it was an...
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Forum: performance & modifications
11-18-2020, 08:21 PM
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Replies: 24
Views: 2,691
Hah, I was editing my post when you responded....
Hah, I was editing my post when you responded. Anyway, I believe you, I'm just saying I bet the Penta cams have less duration than whatever you had done up, so they will have better low rpm. Boats...
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Forum: performance & modifications
11-18-2020, 08:14 PM
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Replies: 24
Views: 2,691
Which is what it sounds like Jack is going for,...
Which is what it sounds like Jack is going for, considering he wants to put in larger valves in. You can't tell me that Yoshifab's are going to less peaky and have me believe it considering they're...
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Forum: performance & modifications
11-18-2020, 07:20 PM
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Replies: 24
Views: 2,691
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Forum: performance & modifications
11-18-2020, 07:18 PM
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Replies: 19
Views: 2,981
First of all, :rofl:!
Second, why are you...
First of all, :rofl:!
Second, why are you putting in larger valves? Do you have goals of 300hp with this build and aftermarket camshafts to match? Even without a wife, the stock sized valves flow...
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Forum: projects & restorations
11-18-2020, 07:10 PM
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Replies: 78
Views: 23,545
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Forum: performance & modifications
11-18-2020, 05:40 PM
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Replies: 73
Views: 17,017
Sounds good. Your combustion chambers are...
Sounds good. Your combustion chambers are basically stock, right(44.5cc volume after 0.103"/2.6mm off)?
That's approximately the same compression we were running with our ENEM K13 cam when we made...
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Forum: performance & modifications
11-18-2020, 04:55 PM
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Replies: 19
Views: 2,981
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Forum: projects & restorations
11-18-2020, 04:54 PM
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Replies: 90
Views: 44,717
Yes, we thought so as well, until we started...
Yes, we thought so as well, until we started breaking the braces we used, and/or the hardware we used. Your setup is a little more friendly than ours though with regards to clearance right under the...
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Forum: performance & modifications
11-18-2020, 03:37 AM
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Replies: 19
Views: 2,981
Are your goals over 250hp for the build? Penta...
Are your goals over 250hp for the build? Penta cams aren't going to get you there, if so.
With great porting and proper cams, Erland Cox says people are getting around 280hp with 50mm carbs/ITBs...
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Forum: performance & modifications
11-18-2020, 03:23 AM
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Replies: 15
Views: 3,566
If you don't mind POTENTIALLY doing a camshaft...
If you don't mind POTENTIALLY doing a camshaft swap more than once, I would definitely slap in the K cam first because it'll be faster and more fun, even if the low rpm torque off idle takes a large...
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Forum: projects & restorations
11-18-2020, 02:59 AM
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Replies: 148
Views: 139,633
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