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Grechies 1673 vs 977B Comparison Thread. 

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Thu Feb 04, 2010 4:10 pm 
Getting Side Ways
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If i've read this thread right, still a stock head & bottom end, just the cam, vernier gear, exhaust work, T5 manual & diff gears? Impressive!

Cheers

ToranaGuy

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Thu Feb 04, 2010 5:02 pm 
Tyre Shredder
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pretty sure its an ea t5

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Thu Feb 04, 2010 5:28 pm 
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ToranaGuy wrote:
If i've read this thread right, still a stock head & bottom end, just the cam, vernier gear, exhaust work, T5 manual & diff gears? Impressive!

Cheers

ToranaGuy



Some of these E-Series engines are freaks

Here is details off TI Performance Web Site - unsure if its an AU motor though

ACL Rebuilt bottom end
Stock 91AA EB Head with 40 thou shaved
AU Headgasket
AU 6 Injectors
68mm Throttle Body
Pacemaker Comp 4480's with 3" flange
3" Cat & 3" Exhaust
ED XR6 300kpa FPR
Stock ED Inlet manifold
AU XR6 Alloy Tailshaft
3.7 LSD
EL ECU with J3 Chip

Although I do think the external pods helps a tad :)
Image

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Thu Feb 04, 2010 9:02 pm 
Getting Side Ways
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Interesting. I have heard the 91AA EB heads are the best stock non tickford heads. Do you know what comp -40 thou would give? I've got one sitting in the shed from a EB series 1 i wrecked for that very reason lol. Next time i have to do a head gaskit, i'll be getting the 91AA reco'd, maybe a little port work done as well & fitting it up.

We all know how tough the stock bottom ends are on the 4lt, so it doesn't surprise me too much.

Cheers

ToranaGuy

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Thu Feb 04, 2010 10:23 pm 
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I have heard the 96AB EF head is the best head.
Correct me if i'm wrong.

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Thu Feb 04, 2010 10:52 pm 
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There's mixed opinions about the best flowing heads in stock form. I've read on some Autospeed article that the 94AB (EF) is the best non-tickford head. Have also heard rumors about the 91AA head flowing the best in stock form so who knows. The 94AB head is so close to being identical to the 91AA upon comparison - i had both of them side by side on a bench at home and could not find a difference between them apart from casting numbers, half moon differences and the oil galleries which are cast larger on the 91AA head. The chamber design looked identical, had the same valve guide bosses, same valve sizes obviously and the ports appear to be pretty much the same.. Anyways..

I'm amazed at the results you have got with the EA, Grechie.. Would of never expected those results on a stock head. I was expecting a little valve work and a good pocket port at least to get those kind of figures lol. I'm sure the other guys running 13's in their e-series will have some head work done. Wonder how well it would go with oversize valves and head work to suit :twisted: Awesome work dude!! Look forward to seeing videos of the next run down the strip :P

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Thu Feb 04, 2010 11:16 pm 
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SORRY i did mean the 94AB head.
I totaly agree with you KWIKXR. I have read the same.

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 12:01 am 
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KWIKXR wrote:
There's mixed opinions about the best flowing heads in stock form. I've read on some Autospeed article that the 94AB (EF) is the best non-tickford head. Have also heard rumors about the 91AA head flowing the best in stock form so who knows. The 94AB head is so close to being identical to the 91AA upon comparison - i had both of them side by side on a bench at home and could not find a difference between them apart from casting numbers, half moon differences and the oil galleries which are cast larger on the 91AA head. The chamber design looked identical, had the same valve guide bosses, same valve sizes obviously and the ports appear to be pretty much the same.. Anyways..

I'm amazed at the results you have got with the EA, Grechie.. Would of never expected those results on a stock head. I was expecting a little valve work and a good pocket port at least to get those kind of figures lol. I'm sure the other guys running 13's in their e-series will have some head work done. Wonder how well it would go with oversize valves and head work to suit :twisted: Awesome work dude!! Look forward to seeing videos of the next run down the strip :P


I'm sure you are wrong on the headwork. OED had a stock AU head for his 13.8 and turbodrift has a 91AA head on his Brock EA. Neither are ported. They are the only 3 apart from JMM to run 13 sec passes N/A.

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 6:56 am 
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67RCE wrote:
I'm sure you are wrong on the headwork. OED had a stock AU head for his 13.8 and turbodrift has a 91AA head on his Brock EA. Neither are ported. They are the only 3 apart from JMM to run 13 sec passes N/A.

Thanks for the correction :wink:

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 1:33 pm 
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thanks for the comments guys!

yea i'm not to sure if it would gain anything by getting headwork, thats why im happy to just leave it as it is really :)

& to clarify yep its a EA T5 with 3.7 gearing !

Those specs from that website are correct minus the J3 now, as its stock tickford ecu at the moment.

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 1:36 pm 
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grechie: when the next drags on? pretty keen to see what this thing rockets down the quarter at now

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 1:41 pm 
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It will be at calder when i go, maybe next time its on, as today is pretty wet

 

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 1:44 pm 
Tyre Shredder
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was it supposed to be on today?
thats gotta kill

 

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the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 3:00 pm 
Tyre Shredder
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was it supposed to be on today?
thats gotta kill

 

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ef falcon gli wagooon: currently finishing bodykit and then doors closed respray
the-garage-f53/ef-wagon-kit-pics-up-t77713.html

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 Post subject: Re: Grechies 1673 vs 977B Comparison Thread.
Posted: Fri Feb 05, 2010 7:00 pm 
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yea i think its still going ahead too, i didnt get a sms canceling it

 

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