LT1-7

well, everything fits. Personally I don't like the way it looks cause it's hanging out the front too much but at least it'll be running soon. Plus I'm going with a whole new setup next year. I just have to do some wiring and small stuff hear and there and this thing will be on the road again. I installed all new valvetrain parts so hopefully it'll start right up with no problems but I guess we'll see next week



And here is one of my whole car I know, needs to go to the body shop

Gargamel

fix the pictures buster........

SyderJL

^ I see them just fine.
Hey John, I have all of next week off and I am not taking classes this term so give me a call when you need help, and maybe we can start on the intercooler if you want.

Looks good but damn was it a PIA to put in last time

Justus

LT1-7

Justus, it seems everytime we get together something goes to **** Next week will be cool. I'm busy monday and will be gone tuesday until probably 2pm. Wednesday I'm free up until 5pm so we can get some stuff done. I have a bunch of welding to do on the exhaust side but after that it should be able to start right up. Just got done with all the fueling so just need to add fuel.

jimlab

John, looks great!

BTW, did you make those headers completely from scratch, or did you modify something that was a pretty close fit? The reason I ask is that I've seen similar headers on other turbo LT1s, and wondered if there was something already available.

The more I look at your configuration, the more I think that it might not be a bad idea to use a similar setup to get the primary tube length I need without having to try to snake everything under the engine or transmission. On the plus side, if I did ever decide to turbocharge my car, a setup like yours would require a lot less changes to the exhaust.

Keep up the good work, I'm probably almost as anxious as you are to see your car run. Mine I don't care about.

LT1-7

Jim, I made those completely from scratch. I know from first hand experience that it's pretty hard to get any nice size headers to fit on our setup for NA applications. There just isn't enough room to clear the subframe. I think you had the same problems with the headers you bought right?

Wait, I just read your post again and now confussed. Do you mean you want to route the headers towards the front like mine? Or use a simular setup and flip them around? If you flip them towards the front like mine, you will have more than enough room to make long primary tubing, I was really surprised at how much more room I had this way then the going the conventional NA route. The only thing is you'll probably end up adding some weight up front as well.

It's funny cause I'm more anxious to see your car run than mine

Either way both of our cars will be tearing up the track someday

black99

Amazing how much room there is between the strut towers and the exhaust manifolds/headers..

At any rate, looks bitchin...

I wonder how many people in the 3rd gen section would still be against v8 swaps..

wingsfan

Looks good John. They fit in there nicely. It's always an optical illusion to see soemthing that large and wonder wheter they'll fit under the hood or not.

I'd like to come by some time and take a look before I move. You'd mentioned you needed help with the wiring.

I'm going single t-76 on my car. I picked up the exhaust manifold flanges to make my headers off of the other day. I just need the TIG welder to go with it.

You're so right when you say there isn't much room for NA styled long tubes. Plus I miss that exponential acceleration you get with a turbo, so forced induciton it is.

The turbo is going where my AC compressor is. I wouldn't be too surprised to see that the turbo weighs less than the compressor either.

Anyhow, I don't want to change the focus of your thread. Looks like you've got some work left on the downpipes, but it's lloking more and more like a project nearing completion.

jimlab

The SLPs which you bought from me were a fairly close fit with Grant's cradle, but would have had to be modified to clear the steering linkage and passenger's frame rail, and wouldn't even come close to fitting with my cradle.

The S&S "block hugger" mid-length headers I bought next will clear the steering linkage, but won't clear my cradle either, and would still require trying to cross back over from the driver's side to the passenger's side beneath or after the transmission, since there's no room beneath the cradle/pan without compromising ground clearance.

The passenger's side is the worst (as you can see below), but I think if a duplicate (mirror image) of the driver's side header was made, I'd probably be golden. The problem is that I still have to get the driver's side collector back over to the passenger's side of the engine/transmission at some point, which raises its own problems. Also, the driver's side header can not be installed while the engine is in the car. I'd have to come up with a slip-fit configuration with one or more tubes and make each header two pieces, which is obviously less than ideal.





Pretty much, then cross over in front of the engine and down to a collector to a single pipe back to the rear of the car. I'll have to give it some more thought, but it'd be one way to maintain ground clearance, get the primary tube length that I want, and set the car up for a swap over to turbos if I get bored.

True, but not much. No more than an intercooler and piping, probably. I could always use Titanium...

Or street...

LT1-7

Andrew, when are you leaving? It would be cool if you came by sometime but at least let me get it started first. I'm pretty confident I'll have it started up by wednesday. Just some small things to do and it should start. I'm just worried that I installed something wrong on the valvetrain, but maybe I'm just worrying too much.

So you're going turbo for sure huh? Let me know if you need help. I have little experience with making headers/manifolds If I can go back in time I would actually make log style manifolds instead of tubular. That would have allowed me to mount the turbos in a different place.

Anyways, give me some time and I'll get it running

LT1-7

Jim, if you're gonna route it towards the front like that I'd say do it. Knowing you it'll probably look sicker than hell!! If you go turbo I know you'll put my setup to shame so I say stay NA

WaachBack

iTrader: (21)

Thats looks really nice......and hella fast.

wingsfan

The moving truck shows up May 22nd. I should be in Austin by the 27th.



That's cool. I'm supposed to make a run up to torquefreaks in portland for some tuning this week. I'll give you a call when I go and see about stopping by on the way back.



Yeah, I'm going turbo for sure. Sadly, I am already bored with my current setup, like to tinker with things, and I really enjoy fabrication. Plus I get to buy some kick *** tools.

It's cheaper than going big cubes, and I don't see the point of making a 7.0L block and then making it breathe through stock exhasut manifolds, or "long tubes" that don't flow much better than the stockers.

I'll be making a log styled manifold since I need a crossover pipe to feed both exhaust from both banks into the turbo path. The t-76 GTQ has put down ~800 RWHP and 850+RWTQ in an F-body at ~15psi, so it should be sick, and more power than I'll ever need, even at moderate boost levels.

Sweet, then we can line our cars up and run them. I bet I take you. Only because of your uncontrollable wheel spin.

jimlab

Well, the first thing I'd do, since my CR is 11.4:1, is swap a Motown 454 short block with the -20 cc dished pistons under my top end to get another 60 cubes and drop CR to about 9.7:1.

Halltech got ~625 horsepower @ 12 psi out of a stock Z06 block (346 CID, 10.5:1 CR). I wonder what you could get out of another 100 cubes and a bit lower compression?

noodle

well the bright red paint looks good on the strut tower, you're gonna wrap the headers right? if not, i'd think about it. but even if it bakes the paint off, it'll still look SICK! good job man

LT1RX7

How are you gonna route the exahust to the back? seems like a ton of restriction making at those bends.

Also how are you gonna squeeze any accesories, radiator, intercooler etc in there. Maybe it is an optical illusion but it doesnt look like there is ANY room.

LT1-7

LT1RX7, it does look like there isn't any room but what would you expect? Most people would think dropping in a V8 in an RX7 is cluttering already, I went ahead and added 2 turbos and all the exhaust up there. The radiator has fitted before, it sits in front of the turbos sorta like a FMIC. The intercoolers I have not thought about too much yet. I don't think it'll be a problem though since the intercoolers won't sit in the engine bay

BTW, to anyone that is interested I started the car up today. Started with no problems at all besides getting the wiring right, apparently the ECU needs power Here's a clip

http://www.angelfire.com/extreme4/jo...in_startup.MPG

Oh, thanks to Justus for sticking in with me. You can see his FD in the background. I think he did that on purpose

jimlab

What are the specs on that cam?

dvls-7

All i have to say is......damn nice work bro. Good luck with it.

LT1-7

LT-1 Chevy Hydraulic Roller 212/218 Duration @ .050

488/495 Lift w/ 1.5 rockers

112 lsa

What do you think about this cam Jim? I thought it to be a very mild cam but it sounds way aggressive. Many people have told me to stay away from aggressive cams when turbocharging though so this could be a very nice cam for my setup

wingsfan

You just want that LSA to be on the higher end so you don't bleed off the boost you're going through the trouble of making.

You don't want your engine fighting with the turbocharger, which is what happens when there is too much overlap.

It's not that you won't make power with an agressive cam, it's that most NA cams make more power with higher lift and more overlap. It's not the higher lift that will hurt you, it's the overlap. That's why for (high) boost applications even the stock cam is often a better powermaker than an aftermarket NA cam.

What you want in an FI cam will be more lift and less overlap (higher LSA). For LS1s the LSA is ~117 for the stocker, and a good variety of "boost" cams are in the 115-116 range.

LT1-7

yeah, I see now. I know I'm going to get a different cam anyways when I stroke it so I knew from the beginning it really didn't matter too much if I picked a "bad" cam. As long as it's running and boosting I'll be happy. So Andrew, pick a day I'll be throwing the turbos on in a few days but still need to finish up my cooling system to drive on the street, oh yeah and my driveshaft as well

BTW, are you still gonna rent that welder? I've dropped the intake idea but need some welds for the waterpump flanges

wingsfan

I'm supposed to go up to Torquefreaks for tuning on the 16th, so I could always stop by on the way back after that.

Otherwise, I'm looking to get the new CAI onto the car this weekend, and I could swing by saturday or sunday. Shoot me a PM about your work schedule and when you'll be free.

You should definintely try the cam you have in there now with the boost. Just because it's not optimized doesn't mean it won't be god awful powerful...and fun.

And yeah, we're still planning on renting the TIG for a weekend. I'll be in Texas on the 23rd to cose on my new house, so we are thinking the weekend or two after that.

LT1-7

Hum, I'll be working on my car on saturday but only from 3pm to about 7pm. Sunday I'll be in Corvallis probably getting drunk. I'm off till tuesday after that though. Let me know if any of those days will work for you. YOu can come by check things out then tell me exactly how screwed I am when you look at my wiring mess.

The welding thing isn't going to work out for me too much. I need to get this car running soon so I'm going to have someone else do the welding for me probably next week.

wingsfan

I can probably swing by on saturday afternoon and take a look. You can't be that screwed since I saw a video of you turning over your car. What else do you need?

No problem on the welding thing. Ed keeps changing his damn mind anyways, so I might have to wait until I own my own damn TIG welder to fix my exhasut tip.