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360-1 RP smallblock heads (Indy) ??? #296667 04/22/09 07:11 PM 04/22/09 07:11 PM
Joined: Dec 2005 Posts: 541 South Carolina A a408swinger OP mopar addict
a408swinger OP mopar addict A Joined: Dec 2005 Posts: 541 South Carolina	Anyone else running the raised port or CNC indys on their smallblock? Just wondering if you have dynoed the motor what timing it liked. The CNC heads have a much larger chamber and I noticed on the dyno that the motor was picking up power each time I increased the timing. I went from 30 to 33 to 35 and finally ran out of time and had to pull it off the dyno. I picked up 10 rwhp going from 33 to 35 and Im wondering if it wouldn't make even more power at 36-38*. My motor also seems to like more fuel than before. Ive got a 1090 cmf king demon and went from 93 jets to 96's and it was still lean (13.9). It was 14.7 with the 93's. What do you guys think. Oh, it made 540 to the tires so far. The car made 513 rwhp before with the hand ported 360-1's and ran a best of a 6.19 @ 111.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: a408swinger] #296668 04/24/09 08:55 AM 04/24/09 08:55 AM
Joined: Jan 2003 Posts: 8,547 State College, PA RyanJ moparts member
RyanJ moparts member Joined: Jan 2003 Posts: 8,547 State College, PA	EVERY INDY CNC Chamber motor I have done.... does'nt matter what piston shape, what compression, what fuel.... has made best power with 38-42 timing. Looking at the burn patterns on pistons & chambers off of used ones they have real good burn, but like alot of spark lead...... Sounds like it picked up at least 30 HP over what seemed to be some pretty radical hand ported -1's. Hopefully you can find even more, glad you finally got the piston hassles etc ironed out.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: RyanJ] #296669 04/24/09 09:35 AM 04/24/09 09:35 AM
Joined: Dec 2005 Posts: 541 South Carolina A a408swinger OP mopar addict
a408swinger OP mopar addict A Joined: Dec 2005 Posts: 541 South Carolina	Quote: EVERY INDY CNC Chamber motor I have done.... does'nt matter what piston shape, what compression, what fuel.... has made best power with 38-42 timing. Looking at the burn patterns on pistons & chambers off of used ones they have real good burn, but like alot of spark lead...... Sounds like it picked up at least 30 HP over what seemed to be some pretty radical hand ported -1's. Hopefully you can find even more, glad you finally got the piston hassles etc ironed out. I basicly got screwed on the pistons and had to use them. They cut way too much off of them and they wound up being 16 grams lighter than my old ones. After they re-cut the valve reliefs they went from a +4.85cc dome to a -.685 dome which dropped my compression to about 11.8 to 1 from 14.5 to 1 with my old heads and pistons. Thats why I was surprised to see that it picked up HP from the old motor. I know I can pick up at least 10-15 more HP with just some more fuel and then I would like to try some more timing also. I know 2 degrees (33 to 35) picked up 10hp to the tires.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: a408swinger] #296670 04/24/09 10:19 AM 04/24/09 10:19 AM
Joined: Feb 2005 Posts: 2,528 Mansfield, Tx Jacob Pitt master
Jacob Pitt master Joined: Feb 2005 Posts: 2,528 Mansfield, Tx	That's good to know. I recently ran my 422 with 360-2 heads for the first time with 34* timing. I didn't get to do any tuning but it sounds like there is plenty of power left just from timing. Your car runs good. Got any pics? 2013 NHRA D4 Stock Champ #4 in the World IHRA Stock 2x IHRA Div.4 Stock Champ 14x Track Champ All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837

Re: 360-1 RP smallblock heads (Indy) ??? [Re: Jacob Pitt] #296671 04/24/09 12:35 PM 04/24/09 12:35 PM
Joined: Jan 2009 Posts: 1,044 Victoria, Australia Ian super stock
Ian super stock Joined: Jan 2009 Posts: 1,044 Victoria, Australia	tom that baby going to hall [Edited by Moparts - Keep it clean] ,try a smaller carbie etc 950 had a simlar problem and it fix it or maybe 4 hole spacer i am thinking air speed may be down a tad , i may be rong . 1.37 60 ft [email]6.0@113[/email] [email]9.57@141[/email] 408 glide 3550lbs new video http://www.youtube.com/watch?feature=player_embedded&v=Xvq3ZObywQE

Re: 360-1 RP smallblock heads (Indy) ??? [Re: Ian] #296672 04/24/09 02:06 PM 04/24/09 02:06 PM
Joined: Feb 2005 Posts: 1,418 Mcallen, TX SB449VALIANT pro stock
SB449VALIANT pro stock Joined: Feb 2005 Posts: 1,418 Mcallen, TX	449RPINDY small block with 14.2:1 and 59 cc chambers, sorry to hear about the pistons, btw mine are diamonds with all the trick stuff also fully lightened for free,btw i did ask for that it was free..lol 5185801-449motor.jpg (246 downloads)

Re: 360-1 RP smallblock heads (Indy) ??? [Re: SB449VALIANT] #296673 04/24/09 02:22 PM 04/24/09 02:22 PM
Joined: Feb 2005 Posts: 2,528 Mansfield, Tx Jacob Pitt master
Jacob Pitt master Joined: Feb 2005 Posts: 2,528 Mansfield, Tx	Quote: 449RPINDY small block with 14.2:1 and 59 cc chambers, sorry to hear about the pistons, btw mine are diamonds with all the trick stuff also fully lightened for free,btw i did ask for that it was free..lol Wow that motor looks great! Who's valve covers, and how much did you have to mill the heads to get them down to 59cc? If I can't get the e.t. I want out of mine I'll throw my Bigs 1050 4500 on mine. 2013 NHRA D4 Stock Champ #4 in the World IHRA Stock 2x IHRA Div.4 Stock Champ 14x Track Champ All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837

Re: 360-1 RP smallblock heads (Indy) ??? [Re: Jacob Pitt] #296674 04/24/09 02:35 PM 04/24/09 02:35 PM
Joined: Feb 2005 Posts: 1,418 Mcallen, TX SB449VALIANT pro stock
SB449VALIANT pro stock Joined: Feb 2005 Posts: 1,418 Mcallen, TX	.060 off, v/c are moroso. Last edited by 369CFMw7; 04/24/09 02:41 PM.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: SB449VALIANT] #296675 04/24/09 06:38 PM 04/24/09 06:38 PM
Joined: Dec 2005 Posts: 541 South Carolina A a408swinger OP mopar addict
a408swinger OP mopar addict A Joined: Dec 2005 Posts: 541 South Carolina	Quote: .060 off, v/c are moroso. I milled mine .030 and they were still 67cc's. I was a Ross piston man until I got screwed over. They made my pistons wrong which I didn't find out until after I assembled my motor. They were supposed to be the exact pistons I had before but just cut to allow for the bigger intake valve so I assumed they were correct. Instead of making me new ones I had to dissasemble the motor and send them back and they cut waaaaaayyy too much off of them. It killed my compression and they were 16 grams too light and they said "Dont worry, it will be fine". I can now feel a vibration over 7000 rpms I never had before. Ill never use them again. Its funny when you pay for a specific custom piston and you dont get anything like what you ordered but are forced to use them because thats all they are willing to do even though it was their mistake.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: a408swinger] #296676 04/24/09 07:08 PM 04/24/09 07:08 PM
Joined: Feb 2005 Posts: 1,418 Mcallen, TX SB449VALIANT pro stock
SB449VALIANT pro stock Joined: Feb 2005 Posts: 1,418 Mcallen, TX	ohh! man that's a bad thing, those RP heads really like an Extremely tight piston to valve clearance,just ask Ryann iam sure you know this... gilberto

Re: 360-1 RP smallblock heads (Indy) ??? [Re: a408swinger] #296677 04/26/09 11:38 AM 04/26/09 11:38 AM
Joined: Sep 2004 Posts: 1,499 San Antonio,TX 4 440W8 Duster pro stock
440W8 Duster pro stock 4 Joined: Sep 2004 Posts: 1,499 San Antonio,TX	Tom how did you(car) do this weekend? 5188915-DSCN1967.JPG (146 downloads) 70 Duster W8 motor. 1.29 60ft 5.79 1/8 at 120 mph glide with 1.80 gear @3170 lbs.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: SB449VALIANT] #296678 04/27/09 01:10 AM 04/27/09 01:10 AM
Joined: Jan 2009 Posts: 273 Edmonton alberta Canada M mr. 63plymouth enthusiast
mr. 63plymouth enthusiast M Joined: Jan 2009 Posts: 273 Edmonton alberta Canada	461 small block in a 68 Barracuda with indy heads made 741hp and 638torque on pump gas, naturally aspirated,single 750holley timed at 33. Car went 9.75@139.88mph on a 10" tire 5190414-HPIM35122.jpg (156 downloads)

Re: 360-1 RP smallblock heads (Indy) ??? [Re: mr. 63plymouth] #296679 04/27/09 07:53 AM 04/27/09 07:53 AM
Joined: Aug 2003 Posts: 5,000 Tampa Florida dc426 gotta keep'm separated
dc426 gotta keep'm separated Joined: Aug 2003 Posts: 5,000 Tampa Florida	Quote: 461 small block in a 68 Barracuda with indy heads made 741hp and 638torque on pump gas, naturally aspirated,single 750holley timed at 33. Car went 9.75@139.88mph on a 10" tire Boy, I sure would like to hear more about this combo......that's kickin! DC

Re: 360-1 RP smallblock heads (Indy) ??? [Re: mr. 63plymouth] #296680 04/27/09 11:37 AM 04/27/09 11:37 AM
Joined: Feb 2005 Posts: 1,418 Mcallen, TX SB449VALIANT pro stock
SB449VALIANT pro stock Joined: Feb 2005 Posts: 1,418 Mcallen, TX	Quote: 461 small block in a 68 Barracuda with indy heads made 741hp and 638torque on pump gas, naturally aspirated,single 750holley timed at 33. Car went [Email]9.75@139.88mph[/Email] on a 10" tire WHAT??? THERE MUST BE SOMETHING WRONG THERE, THAT CAR SHOULD FLY WITH ALL THAT POWER

Re: 360-1 RP smallblock heads (Indy) ??? [Re: 440W8 Duster] #296681 04/27/09 11:59 AM 04/27/09 11:59 AM
Joined: Dec 2005 Posts: 541 South Carolina A a408swinger OP mopar addict
a408swinger OP mopar addict A Joined: Dec 2005 Posts: 541 South Carolina	Quote: Tom how did you(car) do this weekend? 5.60's @ 124. Still creeping up on it. I think Im gonna swap the front struts from Strange to QA1's.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: mr. 63plymouth] #296682 04/27/09 12:00 PM 04/27/09 12:00 PM
Joined: Dec 2005 Posts: 541 South Carolina A a408swinger OP mopar addict
a408swinger OP mopar addict A Joined: Dec 2005 Posts: 541 South Carolina	Quote: 461 small block in a 68 Barracuda with indy heads made 741hp and 638torque on pump gas, naturally aspirated,single 750holley timed at 33. Car went [Email]9.75@139.88mph[/Email] on a 10" tire Are they the CNC heads? What does your car weigh with you in it race ready?

Re: 360-1 RP smallblock heads (Indy) ??? [Re: a408swinger] #296683 04/27/09 01:23 PM 04/27/09 01:23 PM
Joined: Jan 2009 Posts: 273 Edmonton alberta Canada M mr. 63plymouth enthusiast
mr. 63plymouth enthusiast M Joined: Jan 2009 Posts: 273 Edmonton alberta Canada	Yes cnc heads, 3030lbs full street legal, lights, horn,wipers etc.. they all work, small converter(3200) witch I think is holding it back some, best 60foot 1.420, pretty shitty,but still ran 9.75@139.88mph. 5191063-HPIM34773.jpg (136 downloads)

Re: 360-1 RP smallblock heads (Indy) ??? [Re: mr. 63plymouth] #296684 04/27/09 02:33 PM 04/27/09 02:33 PM
Joined: Dec 2007 Posts: 830 east coast Otherlane super stock
Otherlane super stock Joined: Dec 2007 Posts: 830 east coast	I agree with 369cfmW7 that car should get though the traps in no time.Yes converter has a lot to do with it but I believe you need a domintor also. What size headers are you running?

Re: 360-1 RP smallblock heads (Indy) ??? [Re: Otherlane] #296685 04/27/09 02:50 PM 04/27/09 02:50 PM
Joined: Jan 2009 Posts: 273 Edmonton alberta Canada M mr. 63plymouth enthusiast
mr. 63plymouth enthusiast M Joined: Jan 2009 Posts: 273 Edmonton alberta Canada	Tried a 950 on dyno, only picked up 11hp, so left the 750 on with the 1 3/4" headers and smaller cam. Bigger carb would be more efficient with bigger headers and cam!Car is very mello on the street, idles excellent!! Thats with 5000feet air!!! 5191221-HPIM34773.jpg (152 downloads) Last edited by mr. 63plymouth; 04/27/09 03:03 PM.

Re: 360-1 RP smallblock heads (Indy) ??? [Re: mr. 63plymouth] #296686 04/27/09 03:34 PM 04/27/09 03:34 PM
Joined: Dec 2007 Posts: 830 east coast Otherlane super stock
Otherlane super stock Joined: Dec 2007 Posts: 830 east coast	I believe a 950 is about the same as a 750 or a 850. I bet its nice on the street but I would like to see that engine in race trim. it would have to be a low low 9 second car.very nice car

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