Drag Racing 1/4 Mile times 0-60 Dyno Fast Cars Muscle Cars

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


 


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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 with T-70 single turbo, megasquirt, 6 psi first drive
Build info at http://www.mentalsocket.com/iroc87 First video of the turbo setup running. Car is completely stock 5.7 TPI with 140k miles on it, except for Precision turbo 65# injectors, Megasquirt II 3.0 and an Ebay T-70 turbo with a $20 Ebay blowoff valve. Exhaust is noisy because I haven't welded the flanges on the front of the cat. Stock 2.5" Exhaust and muffler still too! Already finding the limits of the stock fuel pump and ignition, so upgrades coming soon. Yes I know the manifold is leaking, have to pull all of it back off this week to find the source. Also have to put some additional heat shielding in and run the cold air intake tubing. Intercooler coming after the fuel upgrades so I can turn up the Boost. Plan to run 12 psi on the stock engine and 18-20 after I upgrade the internals. Lot's of fun, not really so fast but hella better than stock! At 6 psi, the engine should be producing around 315 hp and 435 ft lbs tq





Turbo Iroc 5.7 TPI second dyno session - stock 140k engine
Dyno sheet: http://www.mentalsocket.com/iroc87/irocDyno2.jpg Build details: http://www.mentalsocket.com/iroc87 This is my second time on a Dyno with the turbo Iroc. Engine is completely stock 350 tuned port injection except for injectors, Megasquirt II 3.0, MSD 6AL and of course the turbo. turbo is a 60mm ebay cheapo. 140k on the clock and still running strong! Running about 10 psi at the time of this video. Car runs 7.89 1/8 at 11.5 psi. Final numbers were 272 rwhp and 378 rwtq. Can't start the test any sooner because the transmission wants to kick down, buy my peak torque occurs before the test starts.





Procharged Iroc z28 Camaro
My 1989 IROC Z28 Camaro with a 1991 Tuned Port Injection 350 and procharger





Turbo Camaro
1986 Iroc-z with an Lt1 swap and a turbo!





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.





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