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Thoughts on this 202 combo

Started by SA EH , Oct 16 2013 11:14 PM

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#326 SA EH

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Posted 18 June 2014 - 07:46 PM

Might as well go & get yourself a 12 port then, there's really no difference. And if you can get near on 200cfm out of a 9 port without it, why would you? Not that I don't like it, I'm a fan of all handy work...

#327 _Bomber Watson_

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Posted 18 June 2014 - 08:11 PM

In my very inexperienced opinion....The CSA at the entry is going to be tiny compared to a 12 port, you will likely get the bottom end your chasing, but no where near the top end you can get from a well modded factory 12 port.....

 

Cheers. 


#328 Dave6179

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Posted 20 June 2014 - 07:56 AM

Well, I just had a 'what the hell happened there' moment. Just changed the YT head for another fresh one. Bought Vizards 'how to port etc' book, gave the head a good going over. It's a 173 unit thats had the chambers opened up... but still will end up with 10.06 comp.

I've cut/drilled/tapped for the screw in studs, threw it on, haven't quite finished yet.

Then decided to have a quick look at the old one. I bought it new around '89, been planed a coupla times, I gave the ports a quick clean up once. However, it's not this head??????? I do remember buying another YT some time ago, but not swapping them over without a 'bit of work'. Std open chambers, no work at all in the ports, zorst valves in need of relapping, guides rooted. The way the engine was going (quite well!) I can't wait to fire it up and test drive it! Higher comp, much better ports, short turn, guide bosses, etc.

I'd love to know where the original one went too.


#329 SA EH

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Posted 03 August 2014 - 11:01 AM

Alright it's been cold, but managed to get to the shed the other night & she's all back together.

For simplicity and through sheer frustration I've gone to a standard type acl race series head gasket, never actually run this engine with one, either been 080 copper, 040 copper or 040 mls! Forget the gas for now, I just want to drive it.
Anyway, bolted it back together & fired it up.
I'm going to try the locked dizzy approach so I know for sure what timimg I have, hopefully it can take around the 30 degree & up mark.
Then it's back to the track.

#330 warrenm

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Posted 03 August 2014 - 05:03 PM

Are you still running 11.5:1 comp.?

What fuel?

Where did you get the ACL gasket from? I've been having trouble getting one since ACL stopped production.


#331 SA EH

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Posted 03 August 2014 - 05:55 PM

Yeah I know Warren, I bought 2 kits back when I built up this engine, so I had a couple spare.
One is now on the engine, the other I used as a dummy gasket when the block had o-rings so it has those grooves in it, but it could still be used.
Compression is at 11.5 and just going to stay with 98 until the engine goes into the other car.

#332 MictheAussie

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Posted 19 August 2014 - 05:04 AM

Compression is at 11.5 and just going to stay with 98 until the engine goes into the other car.

Other car??? Did I miss something?


#333 SA EH

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Posted 19 August 2014 - 08:25 AM

Ha ha ha, got you mic!
Just keep an eye out in non torana projects, it's about to pop up soon.
Something a little different.

#334 MictheAussie

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Posted 19 August 2014 - 11:14 AM

I have an idea. Maybe something light and European.

#335 Dave6179

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Posted 19 August 2014 - 02:29 PM

Caterham, TR7, Triumph Herald/Vitesse, Mk3 Cortina... no wait...


#336 SA EH

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Posted 19 August 2014 - 03:13 PM

Nah, Mic knows what I work on Dave, but it might just have something to do with the BMW rods I have in my engine, maybe.

Edited by SA EH, 19 August 2014 - 03:15 PM.

#337 _ljxu1torana_

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Posted 19 August 2014 - 04:10 PM

you are turbocharging right jonesy.


#338 SA EH

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Posted 19 August 2014 - 04:22 PM

LOL! You're a funny guy Jason, hair dryers are for people with hair...

#339 _ljxu1torana_

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Posted 19 August 2014 - 08:31 PM

i am just starting to loose a bit of hair myself ha ha.


#340 _Bluejinx202_

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Posted 30 August 2014 - 02:02 PM

Hi James,

Can't hear the ping over the exhaust? :stirpot: :D

Seriously now, I've never run that sort of combo of comp/cam/timing. Out of curiosity, what calculated dynamic, and psi do you see on a comp test?

Cheers.

I know this is a late reply.... Comp test today came in at 235 psi static

#341 N/A-PWR

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Posted 30 August 2014 - 02:10 PM

that's a great Compression Test James,

 

I have 250 psi using my head and a race cam.

 

 

Comp test today came in at 235 psi static



Gave you a Like Button for that


#342 SA EH

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Posted 30 August 2014 - 09:10 PM

Hey James that's lots of comp. Can I make your late reply even more worthwhile & ask what cam spec you have in that beast?
Loved the sound of it.

#343 _Bluejinx202_

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Posted 30 August 2014 - 09:15 PM

null-1.jpg
Pretty similar to yours I think.

#344 _Bluejinx202_

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Posted 30 August 2014 - 09:24 PM

Found out this arvo that the cam is only 5 cyl long now though..... Snapped it between the 10th&11th lobes. Dropped a cyl last week and orginized parts assuming it was a head gasket, not that lucky though. Thinking maybe number 6 conrod might have given it a whack.

#345 SA EH

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Posted 30 August 2014 - 09:37 PM

Yeah that's the one, reckon I saw that cam spec sheet somewhere else.
It says 6cyl though not 5😆
Time for another go....

#346 greens nice

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Posted 30 August 2014 - 11:18 PM

Have you got the engine apart yet James for inspection?

#347 _Bluejinx202_

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Posted 31 August 2014 - 07:48 AM


Have you got the engine apart yet James for inspection?


No not yet, just pulled out the two lifters that weren't moving and shone a torch down the holes. The lobes are intact and I can see the core of the cam isn't moving when the engine is turning over.

#348 SA EH

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Posted 15 December 2014 - 09:54 PM

Hey guys, without sounding like I'm just bumping this thread, thought I'd let you know that I've been caught out... Ha, no really, with my brake master cylinder.
Turns out there's a check/line valve in the far end of the master that holds some initial pressure when using drum brakes... that you REMOVE when you fit discs. Otherwise it's like driving around everywhere with your foot 1/4 down on the brakes!
So my hq front & rear commo calipers won't be hanging on any longer.

Think I've found a big part of my problem, but I'm still playing with the carbs.
Cheers

#349 MictheAussie

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Posted 16 December 2014 - 05:54 AM

Good Catch Jonesy. Are you gonna run the EH down the track with this set up again before the German is unleashed?


#350 SA EH

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Posted 16 December 2014 - 06:13 AM

That's the plan Mic, just need some more meetings here to give it a run.
Then wait for you to return home before I pull the donk out.
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