1987 Iroc 5.7 TPI with T-70 single turbo, megasquirt, 6 psi cruising around with AC on
Having a little bit of fun with the turbo 5.7 Iroc. At the time of this video I've finished the 3" downpipe all the way to the cat (no more leaky Exhaust from the first video). I was testing some heat barrier tape today that I put on the AC system components. Seems to work well, nice cold air all day. I'm putting on a 3" cat back next week so it won't be as quiet in the future but it will be as quiet as I can make it (unfortunately a Flowmaster is on the 3" system but that will change to Magnaflow in the near future) and a Walbro pump and then it's off to the land of 12-15 psi!
Just a teaser video from the outside at the end of the video. I didn't want to get in trouble driving crazy so I only took off once and it ended up being too far from the camera. It left black marks and didn't really get anywhere fast but it was fun. I'm working on getting some good outside footage soon. Probably when I get a little more Boost so it's more interesting to see & hear.
See the build at http://www.mentalsocket.com/iroc87
1987 Iroc Turbocharged TPI 350 burnouts and donuts
When will it blow? We'll know when I turn the Boost up soon. Still waiting on my fuel pump to arrive. Just some sights and sounds of the turbo Iroc after getting the 3" Flowmaster catback on it. The new Exhaust brought the Boost up to 7.2 psi. Before long it will be 15 psi. For now it is pretty fun even with low Boost because the rear tires are old and hard. I'm almost done using them and we'll throw some Fusion ZRI's on the back and then it's off to the dragstrip. Also at the very end of the video you can hear the $20 Ebay blowoff valve doing its job!
See my other vids for more into on the setup.
1987 Iroc 5.7 TPI single T70 turbo - stock 141k mile engine at the 1/8 dragstrip 9 psi
Info on the build: http://www.mentalsocket.com/iroc87
We took the turbo Iroc to the dragstrip to see how it runs with the new turbo setup. Previous non-turbo best was 9.29 at 72.x mph and today's best was 8.67 at 82.x mph (three times). The second part of the video is with my wife driving on her second pass ever.. which she runs a 8.67 also! In fact her first pass with also 8.67 with me riding with her. I should let her drive in the future!
Car is completely stock 141k miles except for injectors, Megasquirt II 3.0, T-70 Ebay turbo and 3" catback. See my other videos for more info on this car.
Louis' Twin Turbo Iroc-Z Camaro
My boyz twin turbo monster !! He built this whole car himself, 427 custom small block all forged internals w twin ball bearing garrets !! Estimated hp over 1000 .. New video coming soon !!
Turbo Camaro IROC turboCamaro IROC. 350 TPI. Garrett GT40 Intercooled. This vid was taken early in the build and it had dodgy injectors in it.
Updated drivetrain ended up in the ratrod;
http://www.youtube.com/watch?v=WTXSB1qqpnU
1987 Iroc Z28 single turbo TPI 5.7 first dyno pull Dyno sheet: http://mentalsocket.com/Iroc87/irocDyno1.jpg
Build info: http://mentalsocket.com/Iroc87
Completely stock TPI 5.7 (except for injectors and a Megasquirt) with a single T70 ebay turbo on the Dyno at Panhandle Performance in Panama City, Fl. Final uncorrected 264.3 rwhp @ 4364 and 332.8 rwtq @ 3901
On the first and only Dyno pull, we ran into three problems! Fuel pressure dropped, AFR climbed to 13.0 at full Boost (prompting early shutdown) and it Boosted well beyond the 9.5 I normally see - almost 13 psi. Because I only run 9 psi, anything over 10 psi drops the timing to 12-13 degrees and I add in a lot of fuel to compensate for over-Boost in case of wastegate failure, etc. The Dyno configuration put more of a load on the car than it normally sees, and the result of the loading was the wastegate was unable to release enough Exhaust pressure to keep the Boost down.
This was just a shakedown run and we hadn't set up the detent cable for WOT without downshifting, so the torque peak occurred later than it should have since we couldn't go WOT until later in the RPM range. I'm going to go ahead and get my Walbro in and intercool it before coming back for another Dyno session. All in all, still pretty happy that this old engine put down what it did.
Jeep V8 Chevy 350 MegaSquirt2 and MegaTune
This is another video of my 4 bolt chev 350 in my YJ. It is using an rv cam with cast manifolds and a wide open 18" but surprising quiet magnaflow. The TPI is from a 1992 vette (advertised but probably z28). 255 gal/hr Walboro pump, pro comp long water pump, I rebuilt a turbo 350 tranny and don't need a slip yoke eliminator because even with a little 2/5 inch lift my drive angles are awesome (the turbo 350 has a lower output). Also, an Advanced Adapters crossmember and a Novak t-case-tranny adapter plate and mount bracket are used with a stock GM rubber mount. My home-made wiring harness needs clean up and I have a new big block chevy conversion rad on the way. A nice ride!
Single Turbo Iroc stock TPI 350 finally hits 7's in the 1/8! Firestone radial tires & 13.5 psi
Finally made 7.9 in the 1/8th on the stock engine TPI 5.7 turbo Iroc! I've driven it over 600 miles in the past week, been to two drag strips and a Dyno session getting 18-22 mpg... and it just hit 145k miles on the clock yesterday! My friend's 79 Nitrous TA got me, but only after he bolted on the ET streets. His car does run great though, but if I put Vortec heads and a cam in my car I think he'll have a big problem!
I battled some strange problems with the Megasquirt today though and it is an extension of other AFR problems I've always had with it. Towards the end of the day my AFR kept climbing to high 11's low 12's even at 14 psi. You can see in several of my runs that I let out and ran about 10 mph slower. I added a ton of fuel and it didn't improve. After the last run I let the car cool about 30 mins and on the way home we found low 10's AFR at the same Boost and rpm. I had to throw away the day's tuning because it was all too rich. Time to consider a Big Stuff 3 if this keeps happening.
Breakaway Dragway Panama Beach Raceway
1987 Iroc Camaro.MOV
1987 Chevy Iroc-Z - 5.7 hardtop....
This is a nice, restored #'s matching Iroc....
1991 Supercharged 383 TPI Camaro Z28
This is my 1991 Z28 Camaro. I am running an Eagle bottom end (5.7" H-beam rods) with forged JE pistons. The block is a 1976 4-bolt main block with ARP bolts. That is good for 383 cubic inches. The compression ratio is around 8.2:1. It has a custom ground Lunati flat tappet camshaft, Crane full-roller aluminum rocker arms, and Comp Cam lifters and springs. The heads have mild port work done. The TPI induction is stock except for a TPIS air foil. It has Hooker long tube headers (#2210) and 4" single Mufflex Exhaust to a Spintech muffler with 3" duals out and a Flowmaster merge y-pipe. The blower is a Vortech S-trim with a 2.87" pulley, good for about 12-14 psi at 5500 rpm depending on conditions. The car has not been fully tuned yet with the stock computer. It is running 30 lbs injectors with a 4:1 Vortech fuel pressure regulator (yes, I know). It has a shift-kitted 700-R4 with a 3000rpm stall TCI torque convertor. The rearend is a 10-bolt that I have rebuilt once with Richmond Street 3.73 gears and an Eaton carbon fiber clutch posi. It has run a best G-Tech time of 13.6 at 110 mph spinning the tires through first and halfway through second at 5200ft elevation. The car is estimated around 450 fwhp and over 550 ft/lbs of torque. I am in the process of pulling the car apart to repair the body, replace the broken windshield, and replace the transmission. The car was sitting for about a year after I blew 3rd gear. This is the 4th time starting since. There is a pulley that is making noise that can be heard over the blower. I am planning on making a few more videos before the teardown. The revs were to about 4000rpm and the belt was not adjusted very tightly. Sorry about the bad sound quality.
