Scottie-GNZ Posted August 11, 2008 Share Posted August 11, 2008 and oh yea get the converter restalled, ITS WAY OFF!!!!! ....or, hit it with a 100-shot while on the the t-brake and keep the tight converter for less slippage. Pick up a used NOS setup and MSD Window Switch and wire it up with the t-brake so the NOS only works when on the t-brake and within the window switch range. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted August 11, 2008 Share Posted August 11, 2008 Wow Clint, that thing is a beast!!! I bet it feels good to finally get back in the driver's seat at the track (wonder what that feels like as it has been a year for me now as well). I second the NOS. It will only take a second to get the turbo spooled with a small shot, even with the 300 stall. I was only getting around 3000 RPM's on the footbrake until I tickled it with a little spray, and it just came alive! Mike Quote Link to comment Share on other sites More sharing options...
dr_hunt Posted August 11, 2008 Share Posted August 11, 2008 I don't agree with the NOS even though it may work in this case it is just a crutch for improper converter design. Proper converter design is paramount to consistent performace. Most performance converter companies will re-stall for free anyway. The price of a removal and installation to get it right is less than the purchase, installation and maintenace of a NOS system IMO. Quote Link to comment Share on other sites More sharing options...
stony Posted August 11, 2008 Author Share Posted August 11, 2008 I don't really want to go with the NOS. to expensive to maintain. here is the slip breakdown 60 foot 2.3 330 foot 6.32 594 foot 8.36 1/8 et 8.79 1/8 mph 104 1/4 et 12.2 1/4 mph 140 Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted August 11, 2008 Share Posted August 11, 2008 If the car isn't street driven much, then a high stall converter would work, but you end up with much more slip. If your car sees highway miles, then the constant slip of a high stall converter creates a lot of heat as well. I don't know if I would call it a crutch...perhaps just an alternate method. I guess in you case, highway miles probably aren't going to happen much. As far as expense, well, why stop now Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted August 11, 2008 Share Posted August 11, 2008 1/8 et 8.79 1/8 mph 104 1/4 et 12.2 1/4 mph 140 Although the 1/8 MPH is slower than you would have if the car was working properly, 140mph and 36 mph in the second half of the track says... WOW!! Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted August 11, 2008 Share Posted August 11, 2008 Great Work! Sounds great going down the track. Its funny hearing the RB go by with that huge hood scoop. Must confuse a lot of people expecting a V8 rumble. The nitrous really is a cool way to go because you'll end up with a more efficient converter on the big end! Justin Quote Link to comment Share on other sites More sharing options...
Scottie-GNZ Posted August 11, 2008 Share Posted August 11, 2008 Doc, it's a little different in the small displacement/large turbo/BIG HP world. The small displacement/low compression just does not have the exhaust energy at "lower" RPMs/boost and would need a ridiculous stall, then end up with double-digit, maybe even close to 20% slip on the big-end. While Z-Gad's car is a good example, here is an even better one that matches what Stony's car should do. 2JZ, Glide, big cam and turbo, 2800 stall!!!! and he tickles it with a 75-shot and up to the shift. Quote Link to comment Share on other sites More sharing options...
stony Posted August 12, 2008 Author Share Posted August 12, 2008 Well going to install a fuel system dampener to see if that helps with the pressure loss. if it doesn't going to downsize the 2 lines going to the rail. I suspect that the one -8 splitting into 2 -8 may too much for the pump to handle at hi RPMs. if that fixes it a 75 shot is going on and will be at the track labor day weekend Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted August 12, 2008 Share Posted August 12, 2008 What fuel pump and base pressure are you running? I don't see how the split in the lines could be dropping fuel pressure for you. Once that volume is filled up it should remain filled and pressurized as long as the fuel pump is keeping up with the amount of fuel being consumed at high rpms. Justin Quote Link to comment Share on other sites More sharing options...
stony Posted August 12, 2008 Author Share Posted August 12, 2008 The fuel pressure is set at 45 PSI. It ramps up to 60 PSI under boost then once i get in the higher rpms under boost it trails back off to 40PSI. the injector duty is 100%+ in spots and I'm running 1000cc injectors using 104 unleaded race gas (sunoco) . the injectors should be more then enough for this application. the cycle is getting maxed because of the pressure drop. here is my list of things to do one at a time to see what fixes it. install fuel system dampener and see if that helps. cut one line out of the split and supply fuel rail with one -8 line. OR reduce the split to -6 lines to the rail. (both of these options will flow enough fuel to support my power last is to replace fuel pump with something bigger. the current fuel pump in it is rated to handle 800hp easily so not sure what is going on here but we will fix it. My voltage issue was resolved by bypassing the switch box. the fuel pump is wired directly to the battery. and voltage is maintained at 13+ thru the entire run. Quote Link to comment Share on other sites More sharing options...
JustinOlson Posted August 12, 2008 Share Posted August 12, 2008 Is the feed to the pump and vent on the cell good? If your pulling a vacuum on the cell that coudl hurt the pump performance. Justin Quote Link to comment Share on other sites More sharing options...
stony Posted August 12, 2008 Author Share Posted August 12, 2008 Cell is vented, the pump is mounted almost directly to the cell via a 90 degree -8 an fitting. Quote Link to comment Share on other sites More sharing options...
stony Posted August 15, 2008 Author Share Posted August 15, 2008 Well it's official 175 shot is going on as i type this. Going to start at 75 shot only on the brake to see if it launches and holds booste. it only goes up from there ;> maybe take it out 100 feet later on teh 175 shot that just sounds fun :> Quote Link to comment Share on other sites More sharing options...
scottyMIz Posted August 16, 2008 Share Posted August 16, 2008 sweet!!! I love the 140mph trap :)hey stony i have the same turbo for my rb30 build i was wondering how you liked it? and when boost started and hit full? i looked around and didnt see anything but then i coulda missed it, there isa ton of posts Quote Link to comment Share on other sites More sharing options...
v8dats Posted August 17, 2008 Share Posted August 17, 2008 hell yeah spray that bad boy and hold on! get a vid too. Quote Link to comment Share on other sites More sharing options...
stony Posted August 18, 2008 Author Share Posted August 18, 2008 WELL BOYS THE NOS DID The TRICK!!!!! 6000 rpm and 22 PSI on the brake This ♥♥♥♥♥♥ is gonna rock!!! Quote Link to comment Share on other sites More sharing options...
v8dats Posted August 18, 2008 Share Posted August 18, 2008 sweet! Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted August 18, 2008 Share Posted August 18, 2008 WELL BOYS THE NOS DID The TRICK!!!!! 6000 rpm and 22 PSI on the brake This ♥♥♥♥♥♥ is gonna rock!!! Hate to say "told ya so", but "TOLD YA SO!!" Let's see some times !!!! Quote Link to comment Share on other sites More sharing options...
stony Posted August 18, 2008 Author Share Posted August 18, 2008 Labor day weekend is when i will be at the track again and i will HAVE VIDEo Stay tuned Quote Link to comment Share on other sites More sharing options...
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