Clifton Posted October 9, 2008 Author Share Posted October 9, 2008 I love the V8 car but always wanted a boostd Z. Keep up the nice work!Clive EvilC, If you want a boosted Z, boost that LS1. Even 7 psi would stomp about any L28 and have a better power band. you'll be fine. get out there. jimbo You coming out? It's not fancy. Quote Link to comment Share on other sites More sharing options...
1 fast z Posted October 9, 2008 Share Posted October 9, 2008 I actully think cliftons intake is WORSE than stock, but thats just my opinion I keep telling him to bring it by and let me rework it! HAHA. Quote Link to comment Share on other sites More sharing options...
1 fast z Posted October 9, 2008 Share Posted October 9, 2008 Clifton, do you think this makes the same power at the same boost/turbo combination as the 7m? I think its pretty close. Quote Link to comment Share on other sites More sharing options...
Clifton Posted October 9, 2008 Author Share Posted October 9, 2008 It is really close. I think my 7M made 418 or 420 at 22 psi. If this one would have held 22 it would have easily made that. A few years back the other L28 made 417 at 22. The only thing better about the 7M is the slightly higher torque from the added displacement. I wish I could have got this to 28 psi (even with a smaller turbo) to see if it would match the 533 of the 7M. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted October 9, 2008 Share Posted October 9, 2008 Looks like that stock fuel rail and lines are good for more than people give credit for! Quote Link to comment Share on other sites More sharing options...
1 fast z Posted October 9, 2008 Share Posted October 9, 2008 Yea there is nothing wrong with the stock rail, other than cosmetic. Yea The only benifit to the 7m would be crossflow and shorter engine. Its good to see what stock blocks can do. Quote Link to comment Share on other sites More sharing options...
Clifton Posted October 10, 2008 Author Share Posted October 10, 2008 I've had two PM's about the intake manifold. The horrible plenum is 3" Runners 1.68 od, 1.44 id runner length 6" TB is 60mm. Bryans right about the lines. I ran stock Z lines on my 7m too until I went with twin pumps, it was over 500 rwhp at the time. I had a gauge T'd in on this for the dyno. The reg had no problem keeping pressure down around 38-40 psi at idle (I have low vaccum). I don't know at what gal/hr the reg would have trouble keeping idle pressure correct but it works fine with a 255 l/hr Walbro pump. Quote Link to comment Share on other sites More sharing options...
Tony D Posted October 10, 2008 Share Posted October 10, 2008 Some people have said for years to concentrate on the turbo and EMS... The stock bottom end is far more stout than everybody gives it credit for...the problem is with detonation, not durability of the stock parts. Keep detonation away, and they stand up suprisingly well for a suprisingly long period of time! Quote Link to comment Share on other sites More sharing options...
slownrusty Posted October 10, 2008 Share Posted October 10, 2008 Some people have said for years to concentrate on the turbo and EMS... The stock bottom end is far more stout than everybody gives it credit for...the problem is with detonation, not durability of the stock parts. Keep detonation away, and they stand up suprisingly well for a suprisingly long period of time! You said it Tony!! Interesting intake manifold Clifton!...I would not be surprised if you could pick-up some more ponies with a vetter designed plenum. Nice simple and clean looking engine bay - I love it! Kudos to you my man! Grooovy. Yasin Quote Link to comment Share on other sites More sharing options...
Sideways Posted October 10, 2008 Share Posted October 10, 2008 Another question ive been meaning to ask- how large are you injectors? Quote Link to comment Share on other sites More sharing options...
Clifton Posted October 10, 2008 Author Share Posted October 10, 2008 550's. They were at 75% on one of 25 psi runs. Quote Link to comment Share on other sites More sharing options...
lifegrddude Posted October 12, 2008 Share Posted October 12, 2008 Nice #s! I wonder how much more hp your motor would put down with a slightly more aggressive tune. Are you putting the power down through the T-5 BW, or Nissan B tranny? Just wondering what transmission you're using. Quote Link to comment Share on other sites More sharing options...
Clifton Posted October 12, 2008 Author Share Posted October 12, 2008 B box. have only broke one, 5th gear. I autocrossed today (video shortly) and made the mistake of not turning down the boost on the first run. Anyway, going through the map to kill power above 10 psi, I found that I boost cut set to 25 psi on the SDS, oops. Explains the horrible miss I had at 25psi. Quote Link to comment Share on other sites More sharing options...
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