What will it make?////Will you be tuning EFI on the dyno?
I had a Rattler on the old engine. It was fine.
No. going to dyno with carb. Dyno isn't set up and I don't want the grief.
And yes, I have too much money in it. lol
Re: Bench Data
Posted: Sun Nov 03, 2019 8:49 pm
by Elroy
Any updates on this build?
Re: Bench Data
Posted: Mon Nov 04, 2019 3:34 pm
by SpeierRacingHeads
Elroy wrote: ↑Sun Nov 03, 2019 8:49 pm
Any updates on this build?
Had it on the dyno Saturday and heard a noise. Lost thrust. Brought it home. Found the issue and take it back Saturday.
Got one warm up pull to 6000 when we heard a "swoosh" or "whomp" sound from the bottom end. Caught it early.
Did make 479@4900 and 499@6000 w/30º of timing. It will be good once it's sorted out.
Re: Bench Data
Posted: Mon Nov 04, 2019 4:29 pm
by Elroy
SpeierRacingHeads wrote: ↑Mon Nov 04, 2019 3:34 pm
Had it on the dyno Saturday and heard a noise. Lost thrust. Brought it home. Found the issue and take it back Saturday.
Well hopefully nothing too serious////should be on its way to making some good power //
SpeierRacingHeads wrote: ↑Mon Nov 04, 2019 3:34 pm
Had it on the dyno Saturday and heard a noise. Lost thrust. Brought it home. Found the issue and take it back Saturday.
Well hopefully nothing too serious////should be on its way to making some good power //
Yea I found the problem. I could post the sheet, but it's so nasty looking, I'd catch grief!
Re: Bench Data
Posted: Sat Nov 09, 2019 3:43 pm
by SpeierRacingHeads
All done. Made 7 pulls. Could have beat on it but it's going in the car with EFI.
Re: Bench Data
Posted: Sat Nov 09, 2019 8:32 pm
by GARY C
That should do the job.
Re: Bench Data
Posted: Sun Nov 10, 2019 7:59 am
by Carnut1
Sounds sweet, that will be plenty of fun on the street!
Re: Bench Data
Posted: Sun Nov 10, 2019 12:09 pm
by SpeierRacingHeads
Yea it's not a LS so it's not cool.. LOL
Needs a bigger carb, left power on the table but just wanted some break in runs, switch to EFI, and chassis dyno tune.
508@5000.. 534@6300.. 500hp from 5300-up. Needs a bigger carb.
SpeierRacingHeads wrote: ↑Mon Sep 02, 2019 1:12 pm
String of 500hp and string of 500 torque, peaking at 6200ish
Yes, small solid roller
Walk in the park. 500 tq is more of a challenge than the 500 horsies but neither should be much trouble at all for something with some effort thrown at it. There are out of the box heads that could get that done. I have a suspicion you are intentionally understating your goals because of the TPI///understandable but dynoed with single 4.//solid roller 379 with ported heads and manifold////570 plus or its broken.
i was thinking along these lines as well and i seen 534 on the dyno paper,i thought it was ft/lbs,damn tricked myself again.
i am building a 4'' bore 383 at the moment with dart 180cc alloys
i was hoping for 550hp but now i am not sure....