3.1L/3400 hybrid swap.

[fasteddi]

I tossed my engine trans back in the other day, its a fairly well built engine and trans set up. The best ive put together by far, although i did all of the work myself, i got the trans built as is. So my hands were not in this trans at all. But its a solid one.

Diamond forged pistons .010 over, scat I beam forged rods, ARP head studs, cosmic MLS .010 over head gaskets, then all the clevet bearings throughout plastic gauged to confirm specs. Static compression will be 9.6:1

It have the borg warner s366 on it, but will have turbosmart WG and also a turbosmart Race port BOV. I plan to run the 7psi outter spring I have in it at first, then toss in the inner 7psi springs to raise it up to 14psi. Then run from there depending on how fast it goes.



This also already has the transmission in it(I put it all in together in one piece). Its a Hughes 35-2dr with the added on transbrake as well(sent back and its really a 35-3d). Hardened input shaft, reverse man VB with a brake. Hughes rated it with the brake at 650HP. Plenty for me as i never plan to run something that strong with a V6. I have my VSS installed with my speedo gears to match my tires/gears as well as my temp sensor.

The PTC converter is also in there already as well. Its a 9.5" nissan core Billet converter. Spragless, turbo spline, We aimed for 4500-5000rpm so we shall see what it does this spring.

This is the first time I ever tossed the engine and trans all in, in one piece. I have to say it was dirt easy. Worked well. I have the new tubular cross member made for the TH350 in as well, I have to bolt it all up still. Hook up the driveshaft and then the adjustable tubular Tq arm. Then lots of work under the hood. Wont happen for at least a month because of my job but at least i got a big part done.

Im beyond excited for this set up to be together. I don't expect it to be a lot faster then last year but i plan it to be safer and more reliable by far.

[fasteddi]

Also i dont think I ever updated it when i got it running on E85 and high compression so here is a vid of the big cam and such,

This was with a 3.4l iron head block with iron headed pistons with the gen 3 heads on top, which jammed up the compression to about 12.6:1 from my math. It was rediculus but it ran just fine on E85. I ran it at about 10psi of boost for a bit but never got the chance to race it since i had family issues(my mom died from stage 4 cancer)


I rebuilt this engine to be back down to 9.5:1 compression like it always was before. And im also going back to good ole pump 93 gas/ This year i had a best of 11.23@123Mph on 15psi so hopefully next year i can tease myself with 10s if im lucky from all of my suspension improvements and also a very very good TC and new transmission.

https://www.youtube.com/watch?v=oCa3U7aT0n8

[fasteddi]

Update.

I have done quite a bit in the last few months and still have alot of work to go.
I have a Hughes 35-2dr transmission now that has a full man rev valve body(same as i had in my last trans) I also have a PTC billet 9.5" 5000rpm stall to go with it.

I have lake wook struts shocks all arround. Turbosmart BOV and wastegate

Tubular adjustable tq arm, tubular trans cross member and the list goes on and on.

Ive also added a cage to the camaro but im still working on that.

Ive also rebuilt the 3.4 block. Added cosmic MLS gaskets and arp studs finally, which were well overdue. I easly made 400-500hp for a few years now with stock head gaskets and stock style tty head bolts. I know freaking stupid.

[fasteddi]

Yea the static is about 12.5:1 but the overlap is higher with this bigger cam i am using. I was using this large cam specifically to lower the dynamic compression. Doesnt help me spool up but it does get the dcr under control. The advertised durration is about 290/294 and at .050 its 230/234 iirc. Its up there compared to my other delta 270 cam which was advertised at a 270 and at .050 its was in the 22x area not a split cam though....

Yes i was using 48lbs injectors before but had them maxed for the last year on my set up. The injector DC was arround 85-90% at high rpm 15psi of boost. I was planning on getting larger injectors for awhile now and saw this as a opportunity to over size a bit.


My tune was good before but i ran a 11.32@123mph and then a short while later i was idleing the car and a piston shattered. So im guessing that I must of had a fracture in the piston possible from that run, then later on when i had it idleing and then reved it up in park it went like a blender.....

Ill be sure to break in the cam right. This is the 4th cam now that ive had to break in with my camaro. Ive always done well and never ran into a whiped out lobe but this time I will pay special attention to it. My valve springs are strong but not too much to where i need to toss in stockers to break in the cam thankfully.

9:1? thats not bad but holy cow that is bleeding off a ton of compression if static is around 12.5:1 if its correct, you should be ok on e85. I would prob start on 5 lbs and work up to around 10 psi and see where things are. Make sure you break in the cam properly or you could lose your lobes and your lift will suffer. I had that happen on an engine that I bought used that had a higher lift crane cam and stiff springs. Disassembly showed a worn lobe on a cylinder on either the int or exh lobe as I can't remember exactly. its a prob with flat tappets and stiff springs.


good luck with putting it all back togethor. I think you said you went with 80 lb injectors. If you had gone with 60's your tune with e85 would have been pretty close. That is I think you were using 48 lb injectors? e85 reqwuires about 30% more fuel, and 30% more than 48 is 62lbs. That would have put you close to the same injector PW as when running regular gas. if I remember something wrong about your setup please correct me. So with 80's on the same tune, you might need to actually pull 20% to get afr's where they need to be. something to think about if I remember correctly.

[fasteddi]

Actually I redid the test with a timing wheel, dial indicator, exc and this time i got about 9.1 DCR which sounds alot better then the 10.x:1 Engine is ready to toss in hopefully this weekend or early next week.

[fasteddi]

I dont know if i did the math right exspecially when it comes to the inlet valve closes ABDC. But If i did it correctly the static with a NA engine (no boost) is 10.1:1 dynamic which a cranking pressure of 224psi.

When you add 8psi of boost though to it it jumps up pretty freaking high. 15.4:1 with 8psi of boost!

Im not sure how all this will work out for me, at least it will be a good learning experience. I was hoping this big cam would blead off more and keep the dynamic a bit lower...

have you done the math on your dynamic compression ratio with that larger cam?

[fasteddi]

Well to start the year out i made a pass of 11.32@123mph. Which was amazing btw. But after that i was just idleing the car and there it went. I literly shattered a piston like glass. So that killed my 3.1/3100 engine.

So now im on my way to go E85 and have a high compression engine with low boost. The heads are 3400s gen3, the block is a 3.4L gen 1 block. The pistons are 3.4L gen1 pistons, Moly rings, I did open up the ring gap a touch as the prevous owner had them tight, i assumed for a NA build. Doing all the math over and over Im going to have a good .042 quench, but thats important because the Static Comp Ratio will be 12.68:1 Not too bad when your running E85 but im also going to toss some boost at it. Not the normal 15psi like I was but lower such as 8-12psi or basically what ever it can run and stay away from KR.

The block I have was from a member on here, and it was put together very well. All new bearings all arround and freshly honed out with new rings, but i tossed molys in there and rehoned it again as i wanted to be sure we were good to go as he said the motor sat for quite some time.

I still need to do a good test to see the P2V clearance. That is very important.

I also picked up a pretty substantial cam with this new 3.4L. The cam has a terrible LSA of only 108. I don't like that at all, but my current cam is a 270 with a lsa of 111. So im in the air if i want to use the new cam with literally .550 lift on the exhaust side with my 1.6 rockers or stick with my delta 270 cam .499 lift for both intake and exhaust, not split at all.

I will be using my prevous comp cam beheive springs which allow .590 of lift before bind. Thats the main reason I got them 2 years ago, was for the bind hight, and the amount of lift i could possible run, but then again this is another reason I need to see the P2V clearance.

I have head studs that i bough finally, but i plan to still run a composite metal core head gasket in hopes that if i have bad detonation that blows out and is the fuse for my engine to save it.

I already have some bosch 80lbs/hr injectors and a 450 lph fuel pump both E85 compliant. But I still need a new AFPR that I know will be OK with E85.

Im redoing alot of my charge piping, the turbo outlet is 3 inch, my inter cooler is 3 inch, and my tb is 3 inch, so im redoing it all in 3 inch since i have the stuff just laying here waiting to toss it on, along with reworking the waste gate a bit.


Im a bracket racer so I need to get this puppy rolling again. It suxs racing my 18 second escape. So the plan is to get it going and just baby the thing for the rest of the racing season. Run 12s or so instead of pushing it so hard. I plan to start forging the engine this fall....pistons..exc.


carnage



carnage



New motor getting tossed together


Big ole S366 turbo

[fasteddi]

Heres a vid of my 11.88 on a 11.81 dial. It was about 90 degrees out. The car slows down terribly when its hot. Im talking 2 or 3 tenths compared to 70 degrees or so. The DA was just horrid that day.

https://youtu.be/AHJ0NNEnfKk

[fasteddi]

Well we had my bach party this past weekend. Fun as i could have wanted. But on the drag racing part..... I got some new et PBs and a new trap speed goal finally meet. 120.xxmph! Finally.

Here is a few slips. One is the trap speed of 120mph. bad 60 foot....and laugh but i let off at like the 1200 foot area. It was pitch black at the end of the track at about 9:45 at night. I never raced at the trails before but it freaked me out having no lights down there and a short shut down and a huge wall of hay bails at the normal, sand area. It may have had a killer et that night.

The other slip is the next morning. The n20 was purged just right there. 1.75 60 foot got me a 11.59. Still just using the 50 shot off the line, 14.5psi of boost on the run. I didnt wana get ran out for going under 11.50.

Rough vid quality but heres a .013 red light in elims. I let off at the 660. The rear dif is starting to get worst slipping out of posi here and there. Which is freaking innoying.

https://www.youtube.com/watch?v=ISpkpuCAxMY&feature=youtu.be

11.85 pass in the heat. its not a 12.85...lol

https://www.youtube.com/watch?v=jyic9P6G-O4&feature=youtu.be

[fasteddi]

Update

Well 5 months after I winterized the camaro... it fired right up. Now with a TH350 behind it. Ran it for a bit to make sure the fluids were all ok. Im running a new rear end girdle, a new 2 row alum radiator, and dual fan set up also.

I did notice a little bit of vibrations with the new poly mounts for the trans. Its not violent or terrible but it is noticable and only at idle. Rev it up and its almost non existant. Im hoping its that (the new poly mounts) and not the flexplate or TC since those have been modded just slightly.

I still have to mess with the shifter cable and get it dialed in right before I can drive it, along with a few other little things.

But bracket racing starts may 3rd. So i need to get this car up and ready to tune within the next month. Im getting the itch!

[fasteddi]

Update the trans is in. Went well.

Those top two bolts on the housing will be fun to tighten down. They are alot more tighter then the V6!! I tacked the bolts heads on those to the adapter plate so the trans easily slid right on there. I tossed it in myself on my gravel garage floor...fun!


I still have to tighten up those top bolts, tighten down the TC, get the trq bar mount on(i got a used b&m adapter for 45 bucks shipped) and then just little things. But its too cold out to do that stuff right now. Im just happy the trans fit right up in there, the flex plate went on with the TC pilot adapter fine, and the trans mount adapter to shift it forward 1 5/8th of a inch worked. Although there was some extra adjustment i could have gotten out of the single bolt on the bottom of the trans mount to the x over.

[fasteddi]

Well I am doing a Th350 swap this winter makeing some progress so far. Its a chevy Th350 with a 9 inch tail. Full manual reverse TCI valve body. One season since a solid rebuild. Freakshow 3500 stall behind it.

Here are some pics. I ground down the areas for the bolts from the plate to the block, also slotted the flywheel for the 3/8ths bolts for the TC. I got my gears and such for the speedo housing. Got it all installed. Tossed on the Vss 4k ppm to make sure it fits....and it does like a glove.

I need to still do a bit more but I made alot of progress in 4 hrs including tearing out that ole 700r4.

I still need to get some grade 8 bolts for the plate to the new trans and from the flexplate to the converter, but else then that its just a bit of fabrication and i can toss it in.

[fasteddi]

Tossed a video together for the year in review. Enjoy! Its cold out so no more driving this year.

https://www.youtube.com/watch?v=db_eePqDhY4&list=UUthFDd0F-aSKRMi9Jn94Ubg