383 HP and TRQ estimations? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 04-13-2010, 12:55 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
383 HP and TRQ estimations?

Hello,

I was wondering if anybody could run this combo thru a desktop dyno or something and tell me approximate numbers. I'm in Afghanistan and cant download any programs. Also, any thoughts on the combonation would be appreciated. Thanks!

383
3.750" Crank
5.7" Big beam rods
10:1 Comp.
Dart 200cc Int. runners 2.02/1.60 Iron heads
CAM, .533" Int. and .555" ex. valve lift. Advertised duration is 288 Int. and 294 ex. Duration at .050" is 236 Int. and 242 ex. Ground on a 110 Lobe center.
1.6 rocker arms
EdelBrock RPM Air Gap
750 street HP doublepump (have not picked carb yet)

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 04-13-2010, 03:12 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 13,083
Wiki Edits: 326

Thanks: 779
Thanked 1,057 Times in 879 Posts
It appears that you are from Arizona, but are deployed in Afghanistan. That would mean that you are either in the military or are part of military support. Either way, I'm very proud of you and of course will run a Sim for you.

I'm pretty sure you are talking about the CompCams juice roller 12-433-8, however with 1.6 rockers, the lift would be 0.555"/0.576". First I ran it with Dart Iron Eagle 200's...
RPM HP TQ
2000 137 359
2500 173 364
3000 221 386
3500 286 429
4000 352 462
4500 410 478
5000 457 480
5500 485 463
6000 490 428
6500 472 381

Just for grins, I exchanged the heads for a set of Racing Head Service Pro Torker cylinder heads. These have tiny little 170 cc runners, same size as the Chevrolet L31 Vortec heads, but according to RHS and the flow figures they publish, these little heads flow like gangbusters. You have to remember that not only do you have to consider runner SIZE, you must also consider gas flow VELOCITY. Apparently, these heads are very fast compared to a larger port head, so they pack the cylinders better and make more power.
http://www.summitracing.com/parts/RHS-12410-01/

RPM HP TQ
2000 136 358
2500 173 364
3000 222 389
3500 290 435
4000 358 470
4500 420 490
5000 471 495
5500 501 479
6000 510 447
6500 508 410

May the good Lord hold you and protect you from harm until you are back in the arms of your loved ones.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 04-13-2010, 03:17 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Yes Sir

Thank you very much! Yes sir, I'm in the Air Force. Originally from Michigan. Thanks again.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 04-13-2010, 05:09 PM
my87Z's Avatar
Veteran/Firefighter-EMT-I CRT
 
Join Date: Mar 2009
Location: maryland
Age: 31
Posts: 1,685
Wiki Edits: 0

Thanks: 6
Thanked 11 Times in 11 Posts
first question i would as is whether you have the regualr iron eagle head or the iron eagle platinum heads cuase their flow numbers are far different, and the platinums will out perform the regular iron eagle heads.

tech 1 i'm pretty sure you used the advertised numbers from the iron eagle heads, as the platinums are flowing 274cfm @ .500 lift which is a little higher than the RHS 170 pro tokers
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 04-13-2010, 05:32 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
heads

They are the Iron eagle platinum heart shaped chamber heads...
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 04-13-2010, 05:52 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Heads

So...this means more HP and TRQ! If anybody could run a sim I would be much obliged! They are the 64cc version.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 04-13-2010, 06:15 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Flow numbers

I got these numbers from "The Dart Board" numbers are for Iron Eagle Platinum 200cc heads.

200" 130/109
.300" 194/158
.400" 242/198
.500" 274/208
.600" 283/214
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 04-13-2010, 08:09 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 13,083
Wiki Edits: 326

Thanks: 779
Thanked 1,057 Times in 879 Posts
RPM HP TQ
2000 136 358
2500 173 363
3000 220 386
3500 287 431
4000 356 467
4500 417 487
5000 469 493
5500 502 479
6000 512 448
6500 508 410
Not a whole lot of difference. If you can believe the flow figures published by RHS, then that is a whiz-bang head. Personally, I'd put more trust in the Dart figures myself.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 04-13-2010, 09:59 PM
my87Z's Avatar
Veteran/Firefighter-EMT-I CRT
 
Join Date: Mar 2009
Location: maryland
Age: 31
Posts: 1,685
Wiki Edits: 0

Thanks: 6
Thanked 11 Times in 11 Posts
considering i'm currently running these exact heads, althought i have had machine work done to them, not much. but i have had the casting cleaned up, and some bowl work done,i had them flow tested on a SF600 both before and after. it came out with

before:
.300" 188/153
.400" 235/192
.500" 264/201
.600" 273/207

after machine work:
.300" 197/161
.400" 246/202
.500" 277/211
.600" 284/213

and if i remember correctly i have read on the RHS website that the SF600 test was done on a 4.200" bore. so i would take a good 3-5% off the numbers that they posted
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 04-13-2010, 10:08 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks!

Thanks alot guys. Those are alot better numbers than the first sim. My goal was 500 horse and 500trq... fell a little short of trq. but i will be very happy with those numbers. This may make my time left here in afghanistan go by even slower!!! Cant wait to get the car done. 500+ Horse beer hauler! Thanks again guys...this made my day.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 04-20-2010, 03:16 PM
techinspector1's Avatar
Senior Curmudgeon
 
Last wiki edit: DynoSim combinations Last photo:
Join Date: Oct 2005
Location: Hemet, California, USA
Age: 72
Posts: 13,083
Wiki Edits: 326

Thanks: 779
Thanked 1,057 Times in 879 Posts
Leo has asked me to try the combination with a Victor Jr. intake. This will provide a good opportunity to see the difference between a high-rise, dual-plane intake and a high-rise, single-plane intake manifold on the same motor. I'll re-post the dual-plane results so we have all the numbers together on the same post....

dual-plane intake...
RPM HP TQ
2000 136 358
2500 173 363
3000 220 386
3500 287 431
4000 356 467
4500 417 487
5000 469 493
5500 502 479
6000 512 448
6500 508 410

single-plane intake, all else the same...
RPM HP TQ
2000 128 337
2500 170 357
3000 213 373
3500 278 418
4000 345 454
4500 406 474
5000 456 479
5500 491 469
6000 513 449
6500 517 418
7000 496 372

Remember, we're using a hydraulic roller cam that will most likely lose the ability to control the valves at somewhere around 6200 rpm's unless we include a rev kit to put more pressure on the lifters and hold them in contact with the cam lobes.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 04-20-2010, 04:05 PM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Thanks

Thanks alot! I was getting advice to maybe go with the Victor Jr. I think I will stick with the Air Gap.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 04-20-2010, 06:44 PM
my87Z's Avatar
Veteran/Firefighter-EMT-I CRT
 
Join Date: Mar 2009
Location: maryland
Age: 31
Posts: 1,685
Wiki Edits: 0

Thanks: 6
Thanked 11 Times in 11 Posts
14 lest ftlbs of tq and only 5 more hp, the dual plane is the way to go without a doubt

just for grins i averaged those numbers out to see which would do better across the cure:

dual plane:
2500rpm-6000rpm= 367hp/444tq

single plane:
2500-6500rpm= 380hp/432tq

i would take the average of 12lbft tq over curve from the dual plane over the 13hp gain from the single plane anyday, since this is a street motor, i would also go with the single plane because it will put your shift point at 6200rpm vs the 6700rpm shift point from the single plane. you didn't mention whether the crank was cast or forged, and for me i dont like turning a cast crank past 6500rpm ever, i know that it has been done a mess of times but this is just me, i prefer to be on the safe side
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 05-06-2010, 10:21 AM
BigLeoRocks's Avatar
Registered User
 
Join Date: Apr 2010
Location: arizona
Age: 39
Posts: 66
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I agree...thanks 87Z.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 05-06-2010, 10:51 AM
V8 Super Beetle's Avatar
VW makes it, Chevy shakes it..
 
Last photo:
Join Date: Jan 2008
Location: Houston, TX
Age: 33
Posts: 1,245
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by techinspector1
May the good Lord hold you and protect you from harm until you are back in the arms of your loved ones.
x2 Thank you for your service.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 12:27 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.