 RODS WHAT TO USE, Some Choices |
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| Type 4 Unleashed |
 May 23 2005, 12:09 AM
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#1
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CREATIVE TYPE lV ENGINEERING  Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None  |
1. Std 2.0 rod 24mm pin (.945"), 5.160" ctr to ctr, 1.967" jrl, 801g.
2. 2.0 rod, 3/8 BB Chevy bolts, 23.55mm pin (.927"), 5.160" ctr to ctr, 1.967" jrl, 777g. 3. Carrillo, 3/8 rod bolt, 22mm pin (.866") 5.640" ctr to ctr, 1.888" Honda jrl, 556g. 4. Toyota Turbo 7MGTE 10mm rod bolts, 22mm pin (.866") 5.984" ctr to ctr, jrl dia. ? 721g. 5. Chevy 400 SB, 3/8 rod bolt, pressed .927" pin (23.55mm), 5.5" ctr to ctr, 2.100" jrl, 601g. 6. Chevy 327 SB, 5/16 rod bolt, pressed .927" pin (23.55mm), 5.7" ctr to ctr, 2.00" jrl, 576g. 7. Rabbit rod 1.6, 3/8 BB Chevy rod bolts, .927" pin, 5.355" ctr to ctr, 1.805" jrl, 662g. 8. Carrillo Porsche, 912, 1/4 rod bolts, 22mm pin (.866") 5.5" ctr to ctr around 2.160" jrl, 512g. |
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| Type 4 Unleashed |
May 23 2005, 12:16 AM
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#2
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CREATIVE TYPE lV ENGINEERING Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None |
PIC. Attached image(s) 
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| Type 4 Unleashed |
May 23 2005, 12:29 AM
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#3
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CREATIVE TYPE lV ENGINEERING Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None |
The pic, is the Toyota Turbo rod, and the Carrillo Porsche rod, the bolt, is a Oliver Rods 7/16 cap screw bolt.
I will be turning this rod into a cap screw rod, the rods will be drilled and taped for these bolts, and then clearanced, for a very large stroker, and the small end will be bushed for a .927" Chevy pin. Attached image(s) 
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| Jake Raby |
May 23 2005, 07:59 AM
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#4
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
What stroke is the crank?
What pistons do you plan to use? Do you know the pin heights available? What is the intended RPM range? Headwork- Are you going for super vlume or Hi Velocity? All these things and more will determine the best rod for the application. |
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| Mark Henry |
May 23 2005, 08:03 AM
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#5
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Hope you like running .600+ barrel shims Why would you be looking at these rods? By the time you mod the rods/crank/pistons are you saving anything? |
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| Jake Raby |
May 23 2005, 08:24 AM
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#6
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
And unless you have an 82+ stroke crank the rod ratio will be a killer and you won't have anything for chamber filling.
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| Type 4 Unleashed |
May 23 2005, 09:48 AM
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#7
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CREATIVE TYPE lV ENGINEERING Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None |
The crank, will be around 86mm+? Clearance issues. (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) The pistons, with a .930" pin height. 8,000 + To, take advantage of the bore and stroke, high volume. Some of the previous, are going to depend on the Cam , Heads and exhaust. All the above, will be changed, and then changed again, and then maybe even changed again. (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) |
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| Jake Raby |
May 23 2005, 10:08 AM
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#8
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
The bare minimum length of rod to run with an 86mm crank is 5.7"
Now.. With that said do you have any idea the issues that you will run into just fitting an 86 stroke crank? For starters the profile on the rod cap becaomes ULTRA important because collisions between the cam/connecting rods are your biggest challenge. Now, the other issue is a set of cylinder heads that will allow that big of a stroker to turn 8K... according to bore size... My MassIVe heads would even have a hard time with that job in many applications. Running this much stroke requiresan extensive amount of patience and I certainly do not recommend it for someone that has not built a smaller stroker TIV before. BTW- Chances are that a smaller engine would be not only easier to build with less hassles and expense, but would also make MORE power. We really need to talk, I can make this so much easier for you, especially if you do indeed want to go to 86mm stroke- but I would not... Keep it 80mmm or less and use a MassIVe combo, no way you can go wrong. |
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| Type 4 Unleashed |
May 24 2005, 12:42 AM
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#9
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CREATIVE TYPE lV ENGINEERING Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None |
Mark, I wanted to let you know you were wrong (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) After the math, I will only need a .593" Barrel Spacer (IMG:http://www.914world.com/bbs2/html/emoticons/happy11.gif) I, chose these rods, after looking at quit a few of others. The Scat & CB 6" rods, were $249 & $219, for Chevy journals and .866 wrist pins. The wrist pins holes are to small to be opened up safely to fit a .927" pin. All the after market stuff is taylored for the Type 1 There is very little choice for type lV rods, other than having them made at Cunningham ($1000) or Carrillo ($1200) or Pauter ($800), or even Oliver (?). I, bought these (6 Rods) Toyota rods for $25, the Brand New Oliver 7/16 caps screw bolts for $53 (10 bolts), so as of now, I have $78 in the rods, but before I am finished,I will have $200 to $250 in them, and have exactly what I need. There's, plenty of room in the small end to go to the .927" pin, there is even enough room to off set the pin install, to loose a little bit of the length of the rod. As for the crank, I can have it cut for any Rod I decide to use, at any stroke. The Pistons, I already have, 4.125" bore 1/16, 1/16, 3/16 ring lands, .930 ch, weight at 410g, with 85g Titanium .927" pins, with a set of JE rings. I, just pulled my motor last week( 2632 105,7 x 75), it goes back together this week, I hope, with a couple of changes. (IMG:http://www.914world.com/bbs2/html/emoticons/smash.gif) 104.9 x 80 a 2766, but it will have the rabbit rods, that I have bushed for .927" pins, and BB Chevy 3/8 rod bolts, (the bolts were the other 1/2 of the set I put in my 2.0 rods ARP Wave Loc's). I, probally am saving some, and still getting whaaat I need. |
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