402 with itb's headed for the engine dyno-updated 700.1hp
01-19-2010, 01:37 AM
#83
This is sick... makes me really really want these things! I've got the same exact setup nearly just havent got a cam for it yet and the motor is still on the stand.
What are you guy's tuning this thing with?
TFS235's, iron block 4" stroke Scat crank, -3cc 4.005" bore Wiseco pistons, 6.125 Eagle rods arp2000 bolts, yada yada and I really need these ITB's.
What are you guy's tuning this thing with?
TFS235's, iron block 4" stroke Scat crank, -3cc 4.005" bore Wiseco pistons, 6.125 Eagle rods arp2000 bolts, yada yada and I really need these ITB's.
01-19-2010, 06:45 PM
#86
Cool I was just wondering cause the F-body 1 Bar SD OS in HPT has a TPS vs RPM multiplier that can act as alpha-N so to speak. Kind of a cross bread of SD and Alpha-N only both are alway's enabled. Seems like it would work great cause you can log at what TPS the MAP readings max out and from that TPS-up you could start scaling up to WOT to enrich more gradually. I wish I was baller and could afford a set, I love the challenge of tuning ITB's!!
01-23-2010, 03:37 PM
#89
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I am waiting to see the power band (DynoJet will be fine) with the air boxes and air filters effective!!!!
...before making any decisions...
Christian
02-06-2010, 06:39 PM
#92
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well we finally got some time to yank the intake off and port match it to the heads.We were definitely rewarded by our work.The final results are 700.1 hp and 617 ft lbs. tq. This thing has an extremely flat tq curve,i really love how the ITB's work.
Overall i'm extremely happy with this.We hit our goals without any major motor modifications.I believe there is more left in it,possibly a couple cam timing changes would net another 5-10 hp,but the time just isn't available to do any more testing on this combo.Next week we plan to have a new ITB setup on the dyno,a 427 with Performance Inductions 275cc cathedral port heads and a solid roller cam.
Overall i'm extremely happy with this.We hit our goals without any major motor modifications.I believe there is more left in it,possibly a couple cam timing changes would net another 5-10 hp,but the time just isn't available to do any more testing on this combo.Next week we plan to have a new ITB setup on the dyno,a 427 with Performance Inductions 275cc cathedral port heads and a solid roller cam.
02-06-2010, 06:55 PM
#93
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nice. has edcmat-l1 shown you the guy on hardcore that built the plenums for his f-body already? his setup looks pretty good for fitting under the hood.
Last edited by rons 00z; 02-06-2010 at 09:20 PM.
02-06-2010, 10:03 PM
#95
Could you post an overlay graph of port matching vs the old runs? Looks like you gained 20hp / 11tq peak. Nice gains, no doubt. If you retarded the cam how many degrees would you change it to peak at 6500 or 6600 rpm? Do you think shifting the powerband a few 100 rpm would gain any more hp? I know hp is tq x rpm so it would only make sense correct?
02-08-2010, 10:45 AM
#100
I actually want to know the length from the head side flange to the opening of the velocity stack. Thanks for the help Ron.
This is what I'm talking about.
-Brandon
This is what I'm talking about.
-Brandon
Last edited by NodnarB; 02-08-2010 at 10:54 AM.