[jlaudio11]

I race the car often on the street and mostly back of the track in daily driver classes. I have a 100 shot of nitrous on it at the moment made up of spare parts from past builds and I just havent been real happy with the results. I've been considering different options for more power and the quickest/easiest way to get there and that's lead me to boost.

I know a blower is the easiest to bolt on and go but I didnt think it would necessarily be the best for varying traction conditions which has lead me to turbos. Well everything got sped up in that direction when I won a set of turbos in a raffle lol.

The build will be slow over the winter here probably not really getting going till after Christmas when I can spend more time in the garage, but I do plan to document it here for others to see. I plan to build the turbo kit myself, hotside trying to use stock manifolds, air to air intercooler, get it going and then add supplemental fuel in the next phase. That could be before winter is over here in Indiana or later in spring.

One big thing I'm back and forth on in the supplemental fuel area is between a high ram with port injection or the toohighpsi plates. I plan to control either with their LT1 harness and reflex controller unless i do something like parish did and go standalone, probably a maxxecu.

Sorry for the long post but here's a picture to atleast get it going.

[adamjwilson]

TooHighPSI Plates and flex controller is the way to go. Make sure you do not have any hood clearance issues if you go this way.

high ram with port injection or the toohighpsi plates - you can't go wrong with either along with some E50-85 you should have no fuel issues with that twin blower set up. What rwhp and torque are you looking for?

Laynlo15 (for the TooHighPSI stuff) and KingLT1 are the guys to get their opinions for sure....

[jlaudio11]

Originally Posted by adamjwilson

TooHighPSI Plates and flex controller is the way to go. Make sure you do not have any hood clearance issues if you go this way.

high ram with port injection or the toohighpsi plates - you can't go wrong with either along with some E50-85 you should have no fuel issues with that twin blower set up. What rwhp and torque are you looking for?

Laynlo15 (for the TooHighPSI stuff) and KingLT1 are the guys to get their opinions for sure....

After seeing what Laynlo15 was able to do, relatively easily with his maggie 2300/toohighpsi setup I'd like to get to something close to it.

I dont care about a hp/tq number but I would like to get into the 9's on the completely stock engine, on a prepped track etc.

Turbo's are 67/62's with 1.01 exhaust housings. The idea was quick spool without too much back pressure.

[laynlo15]

Originally Posted by jlaudio11

After seeing what Laynlo15 was able to do, relatively easily with his maggie 2300/toohighpsi setup I'd like to get to something close to it.

I dont care about a hp/tq number but I would like to get into the 9's on the completely stock engine, on a prepped track etc.

Turbo's are 67/62's with 1.01 exhaust housings. The idea was quick spool without too much back pressure.

You have a much more complicated build then I do. Have you ever done a build like this before? Are you planning on putting the turbos down low on the front corners like Justin Keith did on his Zl1? I guess my question is how much will you have to farm out for the build to another shop? Whatever you plan I wish you good luck and take your time. We will all be watching the build.

[jlaudio11]

So my "fast" stuff is actually a 7 sec turbo zx14 that I built, engine, hot & cold side, standalone etc. I built another hot & cold side turbo ls trans am before that with holley on it. I plan to fabricate everything in house. My original plan was to go low mount like huron speed and parish for fitment, and somewhat of a sleeper effect. After sitting the turbos up there last night, the wife and I both thought it would look alot better in each corner like the hellion kit. Fitting the downpipes down through near the firewall around the manifolds does not sound like fun though. I go back and forth on it. I think i'll be removing the existing headers and trial fitting the manifolds in different configurations. One other aspect is weight distribution, mid mount is a lot better for weight bias f/r than out front. Oh and defintely not like Nemo, maybe if i had a zl1 front end but otherwise no.

[laynlo15]

Originally Posted by jlaudio11

So my "fast" stuff is actually a 7 sec turbo zx14 that I built, engine, hot & cold side, standalone etc. I built another hot & cold side turbo ls trans am before that with holley on it. I plan to fabricate everything in house. My original plan was to go low mount like huron speed and parish for fitment, and somewhat of a sleeper effect. After sitting the turbos up there last night, the wife and I both thought it would look alot better in each corner like the hellion kit. Fitting the downpipes down through near the firewall around the manifolds does not sound like fun though. I go back and forth on it. I think i'll be removing the existing headers and trial fitting the manifolds in different configurations. One other aspect is weight distribution, mid mount is a lot better for weight bias f/r than out front. Oh and defintely not like Nemo, maybe if i had a zl1 front end but otherwise no.

Well it sounds like you have a head start on it with you other builds. Good luck man

[adamjwilson]

Nemo looking for the 7’s now… crazy!

[KingLT1]

Originally Posted by adamjwilson

Nemo looking for the 7’s now… crazy!

He already went 7.5's this year.

[jlaudio11]

Little update I’ve been working on fitting the turbos, finally got the passenger side to fit in. The drivers side is looking to be a lot easier with more room for activities. I did end up going underneath using the stock manifolds. Pretty sure I could pull it off up top using them flipped over but fitting down pipes down to the car back was going to be a nightmare. Here are some pics. Oh and I’m not a professional welder, bought a tig and taught myself how to use it a few years ago.

[laynlo15]

Originally Posted by jlaudio11

Little update I’ve been working on fitting the turbos, finally got the passenger side to fit in. The drivers side is looking to be a lot easier with more room for activities. I did end up going underneath using the stock manifolds. Pretty sure I could pull it off up top using them flipped over but fitting down pipes down to the car back was going to be a nightmare. Here are some pics. Oh and I’m not a professional welder, bought a tig and taught myself how to use it a few years ago.

Great to see your progress. Keep those pics coming and good luck on the build.

[jlaudio11]

Got the second turbo hung. Wastegates should be here this week. The plan is to route them back into the after turbo down pipes then into the mbrp cat back. Once all the hotside stuff is done i'll be moving to oil feed/return and then cold side & intercooler.

[jlaudio11]

Just realized i didn't really take pictures of the wastegate additions but they are on. Got dedicated motorsports side exit turbo drains and their expansion tank. I contacted Hellion turbo and they sold me their oil temp sensor adapter to use as oil feed. That should be here this week. Ideally by the end of the weekend all oil parts will be done, feed, drain, pump return etc

[jlaudio11]

So I finished up the turbo build, got the car out and started dialing in the tune on low boost (2.5-3lbs). It’s definitely not easy but I was getting it sorted out. On the way to my test spot the car wasn’t idling great and that should’ve been an indicator but messing with virtual torque previous to this I thought I had just screwed up. Made two 1/8 mi hits and on the second hit the engine locked up and wouldn’t restart. Tore the engine down and I spun #7 so bad it actually cracked the journal on the crank and it is now junk. Looking back at everything and why it went wrong, I did have some kr through my tuning process but not on the 1/8 mi hits. What I believe is my issue is the turbo scavenge pump return. I ran it to the stock catch can return port on the oil pan. I thought I was being slick and had seen other people do it. Well the tube inside the pan goes all the way to the bottom and faces the oil pump pick up. Gravity draining to this port wouldn’t be bad in its current configuration but pressurized oil and air being pushed through it I believe i aerated the oil causing the bearing to spin. LT1/L86 cranks are unavailable for who knows how long. I ended up ordering an L8T crank from scoggin Dickey and a drop in je/tsp h beam combo from Texas speed to get me back going. Hopefully you guys won’t crucify me too bad but I’m sharing this to hopefully help some one attempting something similar in the future.

[jlaudio11]

Pics for reference