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Re: R5/P7+turbos=??????
[Re: dart_73_br]
#225953
02/18/09 09:46 AM
02/18/09 09:46 AM
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Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
jyrki
master
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master
Joined: Jan 2003
Posts: 2,932
Finalnd, Perkele
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One turbo fan more, although a big block. We are sitll learning things and started with relatively small turbos, 68.7mm. For next summer we may try a little more A/R, currently 1.22, but propably retain the current turbos. And new headers are about ready, moving the turbos rearwards and in to "clean" air. In my opinion, you don't need big displacement, you'll only get in to a trouble with all the torque. For example in our case, we have a stock 3.75" stroke and a PTC 10" converter that stalls at around 6500 rpm. Now, the engine hasn't been really turned much above that, but we got the stall speed down some 500 rpm by using SAE 80 oil in the trans.  Despite of the early tuning stage, the engine produces good power on pump gas, and has pushed the C-body in to low 8 second ET's repeatedly. There is propably still way more potential left. http://www.kuvia.1g.fi/kuvat/Tapahtumat+2008/FHRA/KamasaTools/Pit/MOP_6762.jpghttp://www.kuvia.1g.fi/kuvat/Tapahtumat+2008/FHRA/KamasaTools/Pit/MOP_6763.jpghttp://www.kuvia.1g.fi/kuvat/Tapahtumat+2008/FHRA/DefaFinals29-31.8.2008/Defa29_31_08_1477.jpg
Plynouth VIP '67 TT IC EFI
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Re: R5/P7+turbos=??????
[Re: dart_73_br]
#225955
02/18/09 11:47 AM
02/18/09 11:47 AM
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Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
Ok guys...
just for information...
How much for a combo like that !?
R3 block ? $$$
Heads for it ? $$$
Whatelse ?
Starndard SB camshaft and parts !?
For complete intake to pan motor with all new parts, figure $17K-$18K bare MINIMUM...
I added it up one day what it would cost if customer called & wanted me to build a duplicate of my engine it would be right at about $24,000 out the door. R3 block, billet caps, billet crank, Carrillo rods, Custom CP's, Solid roller 50MM cam, Crane Ultra Pro lifters, ATI damper, T&D rocker gear, & CNC heads, PSI springs, Ferrea Comp Plus valves, SM valve covers, MSD billet dist etc. & I could throw another $5-6K worth of stuff in there very quickly that I don't have on mine (crank trigger, external oil pump, custom oil pan etc)
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Re: R5/P7+turbos=??????
[Re: theclutcher]
#225957
02/18/09 12:38 PM
02/18/09 12:38 PM
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Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
My motor is 3.58" stroke, & with a 9.0 Deck & a small chamber on the head, that is all the stroke I could run to keep the CR low enough for turbo. Mine's 394 inches..
If I had it to do again I'd have done a tall deck with at least 440 inches, so the motor was more responsive/had better TQ off boost down low & would'nt have to turn as much RPM. But I already had a brand new 9" R3 so... that's what I built.
That's why the large CC combustion chamber heads like an INDY have an advantage over something like my W9RP's with a 39 CC chamber... I could have ran hair more stroke if I had a bigger chamber even with the 9.0 deck.
How much difference in torque are you talking about?
Is issue you see relative to street action or only a factor on track? Auto or manual trans?
For turbo street duty would think your combo would be more than enough with manual trans.
Street/strip car. Drag car does'nt necessarily matter, but if going for "all out" I'd still want decent amount of inches.
My car has a 727 & I could run less converter if I had more inches/stroke which would be nice for street use off boost, that's only real reason I'd do a big inch/big stroke deal if I did it again. Power up top is not an issue, that's only limited by how big of a turbo I run. I could put a 106 on it at 25+ PSI & make huge #'s if I wanted, but that would be a drag only piece.
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Re: R5/P7+turbos=??????
[Re: RyanJ]
#225958
02/18/09 01:25 PM
02/18/09 01:25 PM
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Joined: Aug 2005
Posts: 637
Sao Paulo, Brazil
dart_73_br
mopar
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mopar
Joined: Aug 2005
Posts: 637
Sao Paulo, Brazil
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Quote:
For complete intake to pan motor with all new parts, figure $17K-$18K bare MINIMUM...
I added it up one day what it would cost if customer called & wanted me to build a duplicate of my engine it would be right at about $24,000 out the door.
Horsepower is $$$ 
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Re: R5/P7+turbos=??????
[Re: RyanJ]
#225959
02/23/09 08:36 AM
02/23/09 08:36 AM
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Joined: Dec 2006
Posts: 506
Texas Afghanistan Iraq etc.
DakFink
mopar
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mopar
Joined: Dec 2006
Posts: 506
Texas Afghanistan Iraq etc.
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Quote:
a new 48* Tall R3 is as close as your nearest MP dealer....
Are they finally available in a reliable quantity?
I ordered one in Feb-07 by Oct-07 they still were having issues with their Small Block Mfg. They said it would be at least another six months if everything went well.
I bought Leon's 468" shortly there after and canceled my order.
The guy at Mopar Performance told me to keep an eye out for the part number to change from AC to AD or higher, then they would be available again.
I did notice that change on Summits web page but they haven't been the most reliable for info like that.
I would like to have a 48* as a back-up to my 468" and a 59* to build using my Regular W-9's for a Street Dakota.
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