Extrude Hone - Worth It?
02-01-2013, 06:27 PM
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Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Extrude Hone - Worth It?
I'm building my 305 TPI, ZZ4 cam, TPIS runners, ported matched plenum, SLP headers and plan on fast burn heads next year.
Since my engine is apart, just wondering if it is worth having the stock intake Extrude Honed to match the TPIS runners.
Cost is around $435.
Will the gains be worth it?
Need advise. Thanks.
Since my engine is apart, just wondering if it is worth having the stock intake Extrude Honed to match the TPIS runners.
Cost is around $435.
Will the gains be worth it?
Need advise. Thanks.
02-01-2013, 09:00 PM
#2
Re: Extrude Hone - Worth It?
Back in the 90s I had a crossfire intake extruded, to me it seems like the did just enough to smooth the runners. I should have ported it alot before sending them my intake.
02-01-2013, 10:00 PM
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Car: 82 S10, 83 280ZX, 84 Z28
Engine: 355 smallblocks..na, 2.8 turbo
Transmission: 85:th350, 84:700R4
Axle/Gears: 85:ford9 4.85, 84:stock 3.24
Re: Extrude Hone - Worth It?
Yes, I've heard the same. Not worth it unless a better manifold is not available, like an old Datsun L28 for example. You have 3 choices...custom, cut-up and hand ported and welded back together, or extrude honed.
02-02-2013, 10:20 AM
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Extrude Hone - Worth It?
I'm building my 305 TPI, ZZ4 cam, TPIS runners, ported matched plenum, SLP headers and plan on fast burn heads next year.
Since my engine is apart, just wondering if it is worth having the stock intake Extrude Honed to match the TPIS runners.
Cost is around $435.
Will the gains be worth it?
Need advice. Thanks.
Since my engine is apart, just wondering if it is worth having the stock intake Extrude Honed to match the TPIS runners.
Cost is around $435.
Will the gains be worth it?
Need advice. Thanks.
I did a small amount of porting to the base, the runners were 1.660, then had it all extrude honed including the plenum.
It made 321HP peak and still was making 300HP @ 6000 RPMs w/auto trans.
02-02-2013, 11:05 AM
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: Extrude Hone - Worth It?
Dyno fluke?
I have no idea
I have no idea
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02-02-2013, 11:24 AM
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Car: 67 ******mobile
Engine: 385 Solid roller
Transmission: T-56
Axle/Gears: 4.11
Re: Extrude Hone - Worth It?
It made so much torque it pulled the shop forward real quick lol
Extrude honing I believe they can use more coarse media to get more removal depends how long they leave it going.
Hand porting gets good results if you have the time/patience to spend inside.
Too bad extrude hone is so pricy it would be the perfect follow up to carbide work.
Which fasburn type heads? heard the 210s have a higher port and your stock base may not seal maybe someone can verify that.
Extrude honing I believe they can use more coarse media to get more removal depends how long they leave it going.
Hand porting gets good results if you have the time/patience to spend inside.
Too bad extrude hone is so pricy it would be the perfect follow up to carbide work.
Which fasburn type heads? heard the 210s have a higher port and your stock base may not seal maybe someone can verify that.
Last edited by cuisinartvette; 02-02-2013 at 11:30 AM.
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