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boxer74
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Joined: July 03, 2011
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Location: Ontario, Canada
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 Posted: Fri Dec 11, 2020 12:36 pm Post subject: 1915 Build Suggestions |
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I've scored a good deal on a case/crank/rods/P&C all set for 94mm. I already have a Vintage Speed 1.5" sport exhaust and dual Kads. I need to decide on what cam to use and whether to stick with the Kads or try different carbs. For heads, I'm pretty set on Steve Tims ported super stock, but also open to suggestions. Sorta thinking Web 218 for the cam, but interested in what everyone has to say.
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UK Luke 72
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Location: Little Britain
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boxer74
Samba Member
Joined: July 03, 2011
Posts: 873
Location: Ontario, Canada
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| Posted: Fri Dec 11, 2020 1:46 pm Post subject: Re: 1915 Build Suggestions |
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c45 may be a little too hot.
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UK Luke 72
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Brian_e 
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Joined: July 28, 2009
Posts: 4317
Location: Rapid City, South Dakota
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| Posted: Fri Dec 11, 2020 2:32 pm Post subject: Re: 1915 Build Suggestions |
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Haha. Thanks Luke.
I have posted this before, but one of my favorite engines was a 1915cc with Kads. I drove it for about 5000 miles before I sold the car to a buddy in Denver. He beats the snot out of it frequently.
Here is my combo.
Used case, fully machined.
CW 69mm crank
stock rods
AA 94mm P&C's, with my cylinder prep.
My 37x32 heads, [email protected]" and 28", 63cc port volume.
web 218/119, advanced 2deg.
aluminum push rods, solid shafts
9.0cr., .040" deck
AA 1 1/2" sidewinder and muffler
40mm kads, 32mm vents, welded and ported aluminum manifolds, scat linkage
Super simple, and people don't suspect much from the Kads, but it works good.
I want to do the next version of it, and it will be about the same, but it will have a web 163 w/1.3 rockers, 9.2cr, china 40 IDF's with 32mm vents, and a VS muffler. It should make it pull a bit higher RPM, and hopefully be just about as strong down low.
Brian
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boxer74
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Joined: July 03, 2011
Posts: 873
Location: Ontario, Canada
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| Posted: Fri Dec 11, 2020 2:40 pm Post subject: Re: 1915 Build Suggestions |
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| Brian_e wrote: |
Haha. Thanks Luke.
My 37x32 heads, [email protected]" and 28", 63cc port volume.
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Which heads are yours?
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jimmyhoffa
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Joined: February 16, 2014
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Location: St. Louis
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| Posted: Fri Dec 11, 2020 2:41 pm Post subject: Re: 1915 Build Suggestions |
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Brian,
That is EXACTLY my engine, but replace the Kads with a single 44mm IDF with 30mm venturis. I currently have 40x35 heads, but am exchanging them for heads nearly identical to what you describe. Even down to the degrees of cam advance, that is my setup.
I have been very happy with it, it sees the 5800RPM limiter pretty often. I have stock rockers with Porsche 911 adjusters and it is a very quiet engine. I am the type that likes to play around so I don't build the same thing twice, but I could almost be convinced to build another one of these.
Based on our intakes, I'm probably making a little under 100hp and you're probably making a bit over 100.
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mcdragracer
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Joined: December 30, 2007
Posts: 772
Location: Cally
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| Posted: Fri Dec 11, 2020 2:44 pm Post subject: Re: 1915 Build Suggestions |
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| I'd recommend dual Weber IDF or better yet dual dellorto 36 mm or 40 mm dual carbs |
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Alstrup
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Joined: July 12, 2007
Posts: 7978
Location: Videbaek Denmark
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| Posted: Fri Dec 11, 2020 3:09 pm Post subject: Re: 1915 Build Suggestions |
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| Brian_e wrote: |
Used case, fully machined.
CW 69mm crank
stock rods
AA 94mm P&C's, with my cylinder prep.
My 37x32 heads, [email protected]" and 28", 63cc port volume.
web 218/119, advanced 2deg.
aluminum push rods, solid shafts
9.0cr., .040" deck
AA 1 1/2" sidewinder and muffler
40mm kads, 32mm vents, welded and ported aluminum manifolds, scat linkage
Brian |
X2.
However, the ubiquitous panchito´s would also be a good choice due to the nice fast ports.
Also, I fully agree on the work needed in/on the manifolds. Most of the Kad manifolds on the market are awfull out of the box. I once picked up 17 hp and 20 Nm torque on a customer´s 2007 Kadron fed engine just by welding, porting and correcting his Empi manifolds. He said that if he did not know better he would think I had built him another engine.
Dual 40 Idf or Dell will definitely give you a smoother lower rpm band, but Kads work too, and are simpler.
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Dan the workingstiff
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Location: Downriver, MI
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| Posted: Fri Dec 11, 2020 3:27 pm Post subject: Re: 1915 Build Suggestions |
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I don't feel this will hijack the thread. If 45's were sitting on the shelf screaming out to be used what jetting and venturi's? Or would these be too large?
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boxer74
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Joined: July 03, 2011
Posts: 873
Location: Ontario, Canada
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| Posted: Fri Dec 11, 2020 3:39 pm Post subject: Re: 1915 Build Suggestions |
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Ok so sounds like the kads with web 218/119 split duration would be a good fit with this 1915.
For heads, should I stay with stock size or go with 40x35.5?
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Alstrup
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boxer74
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| Posted: Fri Dec 11, 2020 5:39 pm Post subject: Re: 1915 Build Suggestions |
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| Alstrup wrote: |
| Depends on which 40 x 35´s. Like I wrote above, the Panchito´s were a good option. At 9-1 it will rip. |
Looks like they can be ordered with port matched manifolds for IDFs. Nice.
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sled
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| Posted: Fri Dec 11, 2020 6:12 pm Post subject: Re: 1915 Build Suggestions |
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| aberg83 wrote: |
| Alstrup wrote: |
| Depends on which 40 x 35´s. Like I wrote above, the Panchito´s were a good option. At 9-1 it will rip. |
Looks like they can be ordered with port matched manifolds for IDFs. Nice. |
yes, and this will be an awesome combo...but of course no kadrons then (which I would suggest getting rid of anyway  )
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boxer74
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Location: Ontario, Canada
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| Posted: Fri Dec 11, 2020 6:16 pm Post subject: Re: 1915 Build Suggestions |
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| sled wrote: |
| aberg83 wrote: |
| Alstrup wrote: |
| Depends on which 40 x 35´s. Like I wrote above, the Panchito´s were a good option. At 9-1 it will rip. |
Looks like they can be ordered with port matched manifolds for IDFs. Nice. |
yes, and this will be an awesome combo...but of course no kadrons then (which I would suggest getting rid of anyway ) |
That was probably inevitable anyways.
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Alstrup
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| Posted: Fri Dec 11, 2020 6:17 pm Post subject: Re: 1915 Build Suggestions |
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| sled wrote: |
| aberg83 wrote: |
| Alstrup wrote: |
| Depends on which 40 x 35´s. Like I wrote above, the Panchito´s were a good option. At 9-1 it will rip. |
Looks like they can be ordered with port matched manifolds for IDFs. Nice. |
yes, and this will be an awesome combo...but of course no kadrons then (which I would suggest getting rid of anyway ) |
Sure, Kadrons can work well too. Don´t be so affraid of those. They just need to be trtimmed properly like (almost) everything else
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boxer74
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Location: Ontario, Canada
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| Posted: Fri Dec 11, 2020 6:19 pm Post subject: Re: 1915 Build Suggestions |
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So panchitos 044 vs mofoco 042 vs tims stage 1... what wins?
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Alstrup
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| Posted: Fri Dec 11, 2020 6:35 pm Post subject: Re: 1915 Build Suggestions |
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For all round driveability and overall performance, the Panchito´s
For all out power, the Tims stage I (These also work well on larger displacement engines)
For best cooling (after some work put into them for correcting the air bypass and deflector) the 042.
And btw. ALL aftermarket heads need to get the deflector plate installed. I don´t know why they have left it out (?) - Price most likely.
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Last edited by Alstrup on Fri Dec 11, 2020 6:39 pm; edited 1 time in total |
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boxer74
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Location: Ontario, Canada
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| Posted: Fri Dec 11, 2020 6:36 pm Post subject: Re: 1915 Build Suggestions |
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| Alstrup wrote: |
For all round driveability and overall performance, the Panchito´s
For all out power, the Tims stage I
For best cooling (after some work put into them for correcting the air bypass and deflector) the 042.
And btw. ALL aftermarket heads need to get the deflector plate installed. I don´t know why they have left it out (?) - Price most likely. |
Good to know. Or cool tins?
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Alstrup
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