GTO1

Got a new All Motor PB... ran a 11.218 @ 119.96 1.589 on my first run today. I had no idea how the car was going to launch since I just picked it up from BSP last night and hadn't even driven it on the street ... so I launched off idle and got the new PB.

This was a LS2 that ERL dry sleeved. The LS1 was a stock bottom. The LS1 cam was 227 230 .613 .591 113+2 The 205 heads are what limited the peak RWHP gain and what causes the motor to run out of air flow at 6000 ... but if you look at the comparison there's actually a 65-75 RWHP gain along most of the curve.

Erik did a little more tuning today before I picked up the car. The fall off isn't as bad at 6000 rpm now. Here's a chart showing the gains from the 427 block over my LS1 block. http://i2.photobucket.com/albums/y26/GTO1/LS1vs427.jpg

I'll remember to bring towels.

Cars on the trailer, I'll be heading down around 6.

I will at some point. This is basicly my LS1 build sitting on a 427. I plan on going bigger on both the intake and exhaust side at some point but a cage is next on the list of things to do.

Finally got the new build running and got some initial dyno numbers. The baseline numbers 489.29 rwhp 475.52 rwtq I think once the motors broken in and the rings seat we'll get that 500 rwhp with our next round of tuning. This build really started a year ago when I had Tony Mamo of AFR port my AFR 205s and my Fast 90. It ended temporarily in August when I started blowing smoke out my tailpipes during the Ames Performance Pontiac Nationals. A leak-down test found that the #8 ring was bad and #3 wasn’t too far behind. The thing was, the results that I had gotten on the track were showing that the work Tony had done for me would have easily put me in the 11.2s or better with better DA in the fall. My PB to-date had been 11.49. So I came down to two options, repair my LS1 stock bottom and get to see the results of Tony’s work as originally intended or go to bigger cubes. Then I realized that I could do both. After searching, I couldn’t find very much posted on AFR 205s on large cubes, specifically on a 427. So that’s what I decided to do, max out the 205s and put Tony’s work to a really “big” test. I selected an ERL 427 LS2 short block as the new base to build on. That was the easy part of the build selection. To do this right, however, I knew that I was going to have to have the right cam. I decided to go to Ed Curtis to find the right stick to pull together the marriage of the larger cubes with what many would now say would be undersized heads. Another thing working against me is that my entire setup was built for the LS1 block and now these components that had work very well for me in the past would restrict both the intake and exhaust. The question is just how much … hopefully it won’t take too long to find that out. I do know two things, regardless of the outcome this build will be the slowest my 427 will ever run and that my 11.49 PB will be history. The build was done by Rich and Erik Johnson of BackStreet Performance. Here’s what I’m working with from last year’s head work • AFR 205 head milled to 61 cc and ported by Tony Mamo • 2.020 and 1.600 lightweight REV valves • PAC Racing 1221 springs installed 155 on seat • Morel Hydraulic Roller lifters (5206) • YellaTerra Roller Rockers The rest includes • Kooks 1 ¾ Headers with catted mids • Borla dual exit exhaust 2.25 pipes • Svede OTRCAI • 90mm Nick William TB • 90mm Fast Intake ported by Tony Mamo • Fast LS1 fuel rails • Lingenfelter High Flow fuel Pump • SLP underdrive pully • Katech Belt tensioner • Meziere Electric Water Pump • MSD LS1 Blaster Coils • Magnecor 8.5 ignition wires • 42 lb flow matched injectors • Manley LS2 double timing set • Melling oil pump • Precision Industries Vigilante Converter (3200 triple disk) • Rossler Terminator II Transmission • Meziere flexplate • Diff Technics 3.73 gears • Harrop Diff cover • Derale Atomic Cool Transmission Cooler The AFR 205s, as ported by Tony, produced the following flow numbers. Based on other flow numbers I’ve seen, they compare to the intake numbers of an AFR 215 and the exhaust numbers of a AFR 225. ...that's on the 3.9 bore, on the 4.125 they'll be higher. Intake .200....154 .300....216 .400....268 .500....296 .550....305 .600....302 Exhaust .200....132 .300....190 .400....222 .500....238 .600....247 http://i2.photobucket.com/albums/y26/GTO1/2006_1201Russell205s0003.jpg The short block is a 427 ERL dry sleeved LS2. Compression will be 11.5:1 The engine components and specs are shown below http://i2.photobucket.com/albums/y26/GTO1/IMG_0840.jpg http://i2.photobucket.com/albums/y26/GTO1/IMG_0837.jpg And finally the FlowTech Induction cam. Ed asked me not to published the specs for this cam so I’ll have to see if he comments. For now I can tell you this its his MAX-AIR 16 spec on a Lunati stick. The power band is “roughly” 3000 to 6200 for 400-427 CID. A requirement was being able to pass emissions testing so its not an overly crazy grind, mid size duration with a high lift. The heads were sent out to be cleaned and tested for leaks just to make sure there was no damage done last year. The results were that they are as good as the day I received them from Tony. Just as clean now too. The lifters were sent to Ed Morel for inspection and they also came back with his good to go. As for the results, the first very impressive thing that we saw was the increase in throttle response. Now I know what Tony meant when he said we'd see it with the smaller heads on these cubes. Its very obvious now that the analog RPM readout on the dash can't keep up with what the motors actually doing. Start up video http://i2.photobucket.com/albums/y26/GTO1/Videos/GTO1427/th_MVI_0854.jpg Once we got on the dyno we had to toss the Jamesbiz dipstick handle and go back to the stock handle to keep oil from blowing out the dipstick. Other then that things went pretty well. Dyno Video http://i2.photobucket.com/albums/y26/GTO1/Videos/GTO1427/th_MVI_0866.jpg Pretty much ran with last years tune. Erik didn't have to do much to the tune to get her going other than the adjustment for the larger injectors and as you can see between the two run in the dyno graph we took away some fuel up top. That little adjustment up top gave us 9 more at the wheels. The car ran perfectly with Ed's new cam ... we were totally surprised. We thought there was going to be some major tuning required to dial it in. What we did expect was the smaller heads choking her at 6000 ... but the cam's power range is only to 6200 so we're pretty much right back at the original stock readline as opposed to the 7000 I ran last year....And I think that's a good thing. lol http://i2.photobucket.com/albums/y26/GTO1/IMG_0870.jpg

I'm paid

Motors ready ... I'm in Now I got to find that link to pay up.

Motors almost done, should be on the dyno early next week. If I'm ready to go can I still use the web site to pay for a spot or pay you at the gate on Friday?

Yeah that's what I see too

Back Street is still working on my 427. Rich fell off a lift last week and is in intensive care so no way I'm going to be ready this week. I was hoping to have the motor and a cage done for this.

Shortblock finally arrived from ERL this week and the cam got here today from Ed Curtis so now it's a matter of putting everything together then tuning. At least I'm on the clock for making this now.

SOLD This is a set of eight Ford Racing/SVO 30# Red Top Injectors. They are the EV1 style, high impedence. I am selling them because I am building a 427 and need to go larger. Plug and play for LS1 motors as well as Ford. Flows 36# on the GTO. These were originally purchased as a flow matched set for $365. My price is $150 shipped. ...or I can do $130 picked up. I'll be in Columbus on April 2nd. http://i2.photobucket.com/albums/y26/GTO1/IMG_08341.jpg

I have collector plates on my 04 GTO. Summit county still has e-check....but I'm exempt.

Still waiting on my short block ... but should be good by then.

ERL Performance is currently building me a 427 LS2 shortblock.

http://bestsmileys.com/insects/4.gif

Also planning on a 416 and considering some of the companies mentioned in this thread. ... not mentioned here, but Erik Koenig at HKE is very high on my list.

Just letting you guys know, the car went down with a bad #8 in August so that's why I'm out this fall...not that I want to be.

Yeah...there a a few good things up here in the north coast. Just have to look really hard to find them.

The company I work for , ReliabilityFirst, is looking for an experienced .Net 3.5 developer. C#, very strong in Web development, WCF, SQL server experience a must. SharePoint branding or web parts, nHibernate & LINQ development experience would be a plus. This is a total Microsoft shop. Excellent benefits...no cube either. This job comes with a real private office. Location is West Akron/Fairlawn area by I77 & Rt18. We are a non-profit organization that is an auditing and enforcment arm of the federal government, specifically FERC. Our mission is to maintain the relibility of the power grid. We ensure that all standards and regulation pertaining to it are maintained by the utility companys in our 13 state region. We also audit and enforce the critical infrastucture protection cyber security standards pertaining to these companys. Contact me if interested .... and qualified. Russ

So who going? I'll be there racing all three days. 460 racers and 460 show cars were there last year. Best event of the season...IMO. http://pontiacnationals.com/

Nice job! ...Ray you going to run at Ames Pontiac Naionals at Norwalk?

That's Roger's GTO .. not mine. I run mid 11s...that's why no 11.5 sucks.