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Trainman's Ultimate NA Build


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11-24-2014 Update time: When this started about 1 1/2 years ago it was going to be a simple Heads and ...



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Old 11-24-2014, 06:23 PM
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Trainman's Ultimate NA Build

11-24-2014 Update time:
When this started about 1 1/2 years ago it was going to be a simple Heads and Cam modification. I spent countless hours researching parts, builders, specialists as I wanted something special. The build was always going to be NA only, and I have not changed from that goal. I had wanted to do Striker heads and cam, so I could keep my ported intake and existing headers. When Strikers were no longer available I had to move on to the Gen IV heads. I contacted Greg Good first about the possibility of porting some Gen IV's, since I knew he had experience with both the Strikers and the Gen IV's. From there the project evolved. Justin at JMB got involved (at my request) when we were trying to decide on a custom intake manifold. Eventually we settled on a Gen V plastic intake with twin 80mm single blade TB's and mechanical linkage. At this point A&C Performance was my go to guy for the install and assembly.

I was going to bolt on the heads and intake along with a custom cam on the existing stock short block. But since it had 68000 miles, I reconsidered and felt it would be wise to rebuild a forged bottom end. Todd Abrams got excited about the project and it evolved into a Big Bore wet sleeve for even more power (now we're going from 505 cu. in. to 536 cu. in.). We had lots of time to consider various cams and compressions. I kept getting positive updates on the flow numbers of the ported heads by Greg Good. At first we were looking at about 375 cfm, then as Greg developed more ideas, short radius, etc. , the flow approached 390 cfm, then it made 405 cfm , and finally settled on 427.5 cfm on the intake side at .700 lift. Things are getting crazy at this point.

Fast forward to about 1 month ago, and Todd decided to get Kevin Singleton from Exotic Engines involved (just about the Best there is in the Viper world). The block and heads were shipped to Exotic and Kevin was really impressed with the quality of the work at that point and got excited about the ultimate NA build. Nobody had really done a big bore AND a stroker ( most of his big bore builds had gone de-stroked for higher revs). Since this was for a truck (although I'm lighter than most) he wanted to design a stroker motor, which he says will probably be the most powerful pump gas motor they have ever built.

Most of you have probably be following the progress (however slow it has been) over in the performance section under "Heads and Cam......." . I thought I would get some of the highlights and photos from that section as well as the great video that SRTBrad did when we did the baseline dyno and interview with Todd at A&C Performance.

The specs as of this date are as follows:Bore 4.15, Stroke 4.15, cubic inches 561, compression 11.5:1, forged pistons, Oliver Ultra Lite Rods, Gen IV heads ported by Greg Good, 427.5 cfm intake , 279 cfm exhaust both at .700 lift, Gen V plastic intake with 80mm single blade TB's custom made by Justin at JMB. Engine will be built by Kevin @ Exotic Engines in Reno. Tuned by Chris Jensen, installation and custom work by A&C Performance, custom headers 1 7/8 race tubes 5 into 1 by American Racing. Bill Hickock Race Cars is doing the roll bars and ladder bar suspension.

I will try to post the video and all of the picture I that are in the other section, along with 5 new photos of the block, rods and crankshaft that I just received fro Kevin.


Last edited by Trainman; 11-24-2014 at 07:07 PM.
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Old 11-24-2014, 06:25 PM
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Hers the video:

Trainman Base Dyno - YouTube
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Old 11-24-2014, 06:29 PM
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Gen5 Viper intake with a custom twin billet 80mm TB setup, custom throttle linkage, etc.

Done minus IAC and TPS hardware:






Last edited by caveman; 11-24-2014 at 07:21 PM. Reason: Replaced links with images.
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Old 11-24-2014, 06:37 PM
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Heads:





Well I made it home after meeting with Greg Good and John Grecco (1000hpOdessey) Great guys. Greg had continued development on the heads after the last time I spoke to him, so I have the final "revised" flow numbers for everyone. I actually watched Greg flow them and can verify the final numbers at 28" of water. Here are the final (incredible) numbers:

Lift----------Intake----------Exhaust
.200---------162.5------------116.8
.300---------247.5------------164.9
.400---------312.25-----------221.9
.500---------362.25-----------253.6
.600---------400.5------------269.5
.700---------427.5------------279.0

There you have it. Greg said that no one will believe those flow numbers, but I was a witness. We also have settled (kinda) on the Cam specs, but that could change based on how Chris Jensen and Todd Abrams feel. Cam specs: 248-260 @ .720 lift, 112 LSA Solid roller.

Last edited by caveman; 11-24-2014 at 07:23 PM.
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Old 11-24-2014, 06:41 PM
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Valve covers by JMB:







Last edited by caveman; 11-24-2014 at 07:24 PM.
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Old 11-24-2014, 07:14 PM
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Outstanding
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Old 11-24-2014, 07:24 PM
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Timeslips, Jerry. We want timeslips.
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This has to be a sick joke
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Old 11-24-2014, 07:26 PM
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Just got off of the phone with Kevin and here is the latest on the crankshaft and rods. We were at 4.25 stroke, with the Oliver rods at 6.250 in length, for a rod/stroke ratio of 1.47. Upon a test fit, the rods are close to the sides of the block and may have needed some material removed, but since they are Ultra Lites, Kevin wanted a better solution. He decided to shorten the stroke to 4.15 ( making the engine dead square, 4.15 bore and stroke) and a rod/stroke ratio of 1.51 which he felt was much better. Cubic inches will change from 575 down to 561 (still good) and I will benefit from an additional 500 rpm which makes me happy. Kevin feels the peak power will be in the 6500-6600 rpm range. Still with (as he puts it) more torque than I will know what to do with......I like the sound of that....after all this is just a street truck.....and pure stock as far as the Lightnings are concerned.
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Old 11-24-2014, 07:32 PM
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Quote:
Originally Posted by caveman View Post
Timeslips, Jerry. We want timeslips.
I guarantee at least 11.50 (sorry Ken)

But I am having a roll bar installed so I figure I will at least go 11.49 or quicker.

Remember I promised to beat the number 3 time on our fastest top 10 (10.73 @ 125+) and I feel confident I will shatter that! But to win my bet with ArrestMeRed, I have to beat 10.82 within my first 10 runs, so that's the challenge. (all NA runs of course)
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Old 11-24-2014, 07:34 PM
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Thanks Caveman for fixing my pictures!
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