TwinTurbo Posted March 7, 2007 Author Share Posted March 7, 2007 Thanks guys, it's still a work in progress, but it's getting there.. The new turbos are T3/T4 hybrids with a .82 exhaust and .70 compressor housing.. These turbos should be able to support about 1000hp, not saying that I'll make it there though.. Once the engine is broken in and my water injection setup is on, I'll start cranking the boost until I get close to maxxing my injectors and WI setup.. Then back it off a little.. Cheers, Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted March 8, 2007 Share Posted March 8, 2007 Looks really sweet - I wish I would've discovered turbo's earlier in my performance engine childhood. If you dont mind me asking - what are your cam spec's? Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
280zwitha383 Posted March 8, 2007 Share Posted March 8, 2007 Once the engine is broken in and my water injection setup is on, I'll start cranking the boost until I get close to maxxing my injectors and WI setup.. Then back it off a little.. Cheers, Yeah, advance timing until you smell coolant, then back off 2 degrees. Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted May 26, 2007 Author Share Posted May 26, 2007 First time I've cleaned the car since I bought it I think.. heh heh.. Had it out today a few times.. It ate my MSD ignition module a couple weeks ago and the stock one I have in there now sucks.. Sputters, bogs, etc.. Ahh well, we'll fix that.. Oh, and shaved the ponies off the center caps too.. Maybe that'll make it work better.. Also have one of these on the way too.. My engine has been together waaay too long.. Kevin - Right now I'm running an off-the-shelf Performer RPM cam from Edelbrock.. It was the only thing I could get quickly with a wide LSA at the time.. Eventually want a custom turbo roller, but that'll have to wait.. Cheers, Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted June 6, 2007 Author Share Posted June 6, 2007 Decided that I wanted the stock dash to work instead of trying to stuff a 5" monster tach, 5" monster speedo, 2-5/8 fuel level gauge and assorted lights in that area.. Took the tach and speedo out of the dash and they both had a trim pot on the back side.. (score! thought I'd have to add one) Built a square wave generator with a 555 timer and was able to set the tach to my Autometer tach.. Trim pot Tachs and circuit.. Also played with a hall effect sensor I picked up at Princess Auto and the stock speedo.. The speedo's pot does not have as big of an adjustment range as the tach, so I may have to do some fudging when I get it hooked to the trans... Other than that, still waiting for the boost controller and MSD 6A.. Later, Quote Link to comment Share on other sites More sharing options...
Administrators BRAAP Posted June 7, 2007 Administrators Share Posted June 7, 2007 AH. Good stuff. Thank you for the update. This info is quite valuable. Thank you, Quote Link to comment Share on other sites More sharing options...
sweetride2go Posted June 7, 2007 Share Posted June 7, 2007 sweet work man, been a long road eh?? what did you use for exhaust manifolds??? Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted June 7, 2007 Author Share Posted June 7, 2007 BRAAP - Figured you might be interested in that little bit of info.. Was going to send it along in a PM as well.. sweetride2go - Thanks.. Made my log manifolds from some stainless tubing.. Want to make individual runner headers, but that's a lot of reworking.. Some day.. Cheers, Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted July 31, 2007 Author Share Posted July 31, 2007 It's been a while, so I guess I'll update.. Got the Speedo reading perfect, which is a pretty good considering the number of gear combinations that could have been inside my transmission.. Got the car weighed.. It came in at a beefy 3395, which is actually 10lbs LESS than the average 2+2, non turbo, 5 speed.. The autos are 40 - 50lbs heavier again.. My Z28 weighed the same amount before I tore it down.. Installed a set of these: Very awesome.. Have them set on the hardest settings all around, but she still squats hard when I get on it.. Guess that may have something to do with these... (Happy birthday to me! Present from the wife) Oh yea, picked up a wing off a Twin Turbo as well.. I have my water injection set up, but am still working some bugs out and trying to source some Methanol to try.. Also got the Greddy EBC installed and boy what a handy unit.. Currently have low boost at 10 and high at 13.. Turning it off nets the stock 6lbs.. Don't want to go too far into the teens without some water and/or methonal to stave off detonation.. That's all for now... Cheers, Quote Link to comment Share on other sites More sharing options...
turboboost Posted July 31, 2007 Share Posted July 31, 2007 Great progress so far. I'm really looking forward to some numbers as well. Derek. Quote Link to comment Share on other sites More sharing options...
dts300z Posted July 31, 2007 Share Posted July 31, 2007 Man looks awsome! For the speedo you might want to look into the dakota digital stuff www.dakotadigital.com they offer some handy electronics for calibrating. Looking to start my single turbo setup soon! wow!! me likes! Quote Link to comment Share on other sites More sharing options...
DavyZ Posted August 1, 2007 Share Posted August 1, 2007 Thanks for the update, Twin Turbo. Car is looking the business with the tires, wheels, and body work---wing looks good too. I suspect the wing may actually help aerodynamically, although I'm exactly the person to know that! Keep up the good work and let us know about some numbers when you get 'em Video is nice too Davy Quote Link to comment Share on other sites More sharing options...
spdkilz02 Posted August 2, 2007 Share Posted August 2, 2007 did u get those tires from summit? Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted August 4, 2007 Author Share Posted August 4, 2007 Hoping to actually make the races next weekend, but I have quite a bit of work to do before then.. I will try though... spdkilz02 - Yes, bought them through summit.. Cheers, Quote Link to comment Share on other sites More sharing options...
Firion_13 Posted September 7, 2007 Share Posted September 7, 2007 Update cant wait to see more! Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted September 7, 2007 Author Share Posted September 7, 2007 Had some issues and never made the races.. Portable chassis dyno coming to town this Sunday and I'm hoping to get the car preped and ready to go.. Cheers, Quote Link to comment Share on other sites More sharing options...
Firion_13 Posted September 8, 2007 Share Posted September 8, 2007 Hows that trim pot stuff work? Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted September 27, 2007 Author Share Posted September 27, 2007 Firion_13 - All the trim pot on the back of the gauge basically does is offset the voltage going to the meter to calibrate it.. Well, got my headgaskets under control (blew both of them to peices a month ago.. lol) Bought a set of Felpro multi layer steel gaskets.. The engine will melt and die before these give.. Good or goblin, who cares, I'm tired of changing them! lol Got a few tries at the dyno when it was here a few weeks ago.. Unfortunatly I was having issues at full boost.. The dyno loads the engine probably 50% more than it would normally driving on the highway.. I was having my spark blow out at full boost.. You can see it at about 5000 rpm it starts going stupid.. Turns out I was drinking too much the last time I installed my spark plugs.. 1 gapped at .031, 5 at .037 and 1 at .047!!!! I think the one gapped at .047 was probably a plug I broke while installing it and grabbed another and put it in its' place.. For anyone who doesn't know, anything over .032 is very very bad for a boosted engine.. Video of both sessions http://camaro.ath.cx/300zx/dyno/300zx_dyno_1.wmv http://camaro.ath.cx/300zx/dyno/300zx_dyno_2.wmv Thinking hard of taking it back to the dyno before the snow flies to see if the new plugs gapped at .022 will straighten stuff out.. It is a 4 hour drive though, so I may just wait till spring when they come back to the city for a day.. The car works fine on the highway, but again, it doesn't get loaded like it does on the dyno.. Cheers, Quote Link to comment Share on other sites More sharing options...
Heath Posted October 1, 2007 Share Posted October 1, 2007 How about some vid of the car in action? Bet it's a traction nightmare. Quote Link to comment Share on other sites More sharing options...
TwinTurbo Posted October 2, 2007 Author Share Posted October 2, 2007 How about some vid of the car in action? Bet it's a traction nightmare. These are the only videos I have of the car in action currently.. They're last years vids with street tires.. Cheers, Quote Link to comment Share on other sites More sharing options...
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