This measurement is of the number of crankshaft degrees the piston is within 0.250 inches of top dead center. It is the subject of much conjecture and controversy in the automotive literature.
This table is for a 3.75" stroke used in a 400 0r 383 small block Chevy engine.
6.0" rod------52.397 degrees
5.7" rod------52.071 degrees
5.565" rod---51.915 degrees
Percentage difference in dwell time between the 6.0" rod and the 5.7" rod is 0.626%.
Percentage difference in dwell time between the 5.7" rod and the 5.565" rod is 0.3%.
Percentage difference in dwell time between the 6.0" rod and the 5.565" rod is 0.928%. (Still less than 1 percent)
So I was wrong, it is affected, but even a huge change in rod length equates to less than 1% in dwell time.
I hope the best for you, I had the same issues with Marty @ KRC Performance, he built my 5.7 based stroker for my Dodge Ram, I asked repeatedly for the build sheet, pictures, anything! never recieved any of it! I had major issue with overheating, heads etc... eventually after 18 months, got all straightened out, had to sell the truck, cause I never knew what was in the motor, so, If I was you, I would insist on knowing the contents of the motor, if you have issues with these guys down the road! then, you in the same boat as I was in? no info, no direction? I would believe your stressin, but, hold your ground! your ultimately paying the tab, don't except no for a answer. If it don't go well, their are other good honest vendors here, I wish you luck with it all!!!
I'd tell 'em to disclose all the information if it's your dime, I would also ask for a warranty, at least 30-36K miles.
If not I'd walk, demand a refund if you've paid a deposit based on bad business practices. If you signed a contract I would send it to a lawyer to review.
All in all, I'd be so far up his a$$ from this point forward, and in there at his shop looking everything over. That's just shady crap Don.
The Old: Stock 5.7 Bottom End | Lead Foot | 11.861 @ 112.76 1.63 60'
The New: Forged Arrington 6.1 | MMPG Top End | Paramount Drivetrain | 11.67
is he gonna tell u compression for the motor?
you said your gonna spray as well? it doesnt seem like it has a cam for nitrous?
after its all said and done, take it apart and get the specs yourself
Inertia Motorsports premium heads, Nitro Spartan, 87mm tb, CAI, various 6.1 internals, Nitrous Outlet fogger, straight pipes, CMR tuned......445 RWHP & 515 ft/lbs torque on spray
Good Luck Don - hope it all works out for you in the end Bud.
"Death Smiles at Everyone -- Marines Smile Back"
MOD LIST: C/F Hammer, Flowmaster Ex, FRI-Sidewinder Cam, Gibson Headers, Predator, B.T. Ported T.B., Lil Silver Box, Red Illum Rear Wing, Blue Angel Eyes, Yellow HID FOGs, 09 Intake, CTP Spacers, SRT Rails & Injectors, SRT Rear w/3.55 Gears and 2010 R/T Axles....What's Next?
Ok... The motor is in my car... I'm just a few hours away from making noise .
I did get a full build sheet on the motor. The build sheet includes all the specs, including cam numbers, bore & stroke,head cc, piston cc,compression height,ring location and size,piston pin location,rod length,.... ect... Head flow numbers too..
DON'T ASK or ANY DEALS ARE OFF !!!
For all the doubters... I did get a guarantee..
..PERFORMORMANCE AND DURABILITY...
It MUST be TUNED.. and.. He needs the tuner to call him.
I am required to have receipts for any fuel except that bought at the track
IF IT BREAKS... He does not want the motor...HE WANTS THE CAR
And as for conpression ratio...
I was told " A premimum motor has to run on PREMIMUM"
IT'S A BUNCH... 11.3 !!
Based on what is expected.. I got my $10,000's worth
For the price I got DYNO time too
.............................................PLUS FREE HEAD AND CAM CHANGES TO MAKE WHAT'S EXPECTED...
I was told based on an 12.4 best I will do at least 1 full second faster..
Last edited by HEMIDON; 06-28-2010 at 03:22 PM.
hope all works out and you get the #'s and 1/4 times your looking for ,good luck
performance mods:mopar cai,diablo tuner,magnaflow catback,custom billet strut brace,275-40-20 toyo proxe 4, BT catch can ,180 thermostat
visual mods:chrome pillars,door handles and mirrors,rear glass wing,BT badges,BT center caps,BT engine dress up kit,led tails, clear side markers,tint
first track experience-13.1 at 108...just added 6k lows and fogs..
Great to hear things are moving forward. Now lets see some dyno numbers! Congrats on getting her back up and running Don.
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Modern Muscle Performance Group 11:1 426, Eagle heads, 3400 stall tc and 3.73 Getrag
So everytime you get gas you need to keep the recipt and if his motor he built blows, he wants your car? Souds like a lose deal for him.
High Comp 392.
PARAMOUNT HTCNag1,Flexplate,Converter,3.73 8.8 and Driveshaft,PWR 462 ,PWR Apache Heads,Billet Tech Covers,CTP Twins ,HHP parts support.Grille by DodgeMagnumGrille.com email@example.com so far.
im kinda confused on the if it breaks he wants ur car thing
5.7L & 6.1L Hemi Registry # 856
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2005 Dodge Magnum R/T
2006 Dodge Magnum SRT-8
2000 Chrysler LHS
1999 Dodge Intrepid SE
Yeah how is he entitled to your car if the motor goes ? WTF ? or does he need to car while he is fixing it so he can do dyno pulls and tuning ?
2013 Ram 1500 Sport- 4" BDS Lift, Fuel Krank Wheels with 35" Tires :-) and a bunch of other crap lol
2011 Ram 1500 Sport (Traded in)
2010 GCSRT8, 20" (Traded In)
2008 Superbee #558/1000, Traded in and missed
2005 Crossfire, Traded in on Bee