Mopar 318 piristäminen

Tässä on varmaan ongelma kuvina?

Doug's Headers installed with some clearance issues

 

^Joo, kuvista selviää kuinka ahtaaseen koloseen täytyy pakosarjan mahtua.
Valmistajan ratkaisuhan on tälläinen:

 

Tuosa Migueloksen linkkaamassa tapauksessahan lisämausteen tuo se, että moottori sijoittui väärin paikoilleen. Alkujaan 6-auto ja miten on moottoriswappi toteutettu... Ahdasta siellä on silti.

 

Muistin, että olen linkannut tämmöisen jutun toiseen ketjuun joskus. Kovasti näyttää, että on menty valusarjoilla:

 

Mites tämmöiset? Summitin mukaan pitäisi sopia:

Hedman Tight Tubes Street Rod Headers 78500

 

Tiukkaa tehnee noillakin, ainakin moottorin tulee olla jetsulleen oikeassa paikassa. Halvathan eivät nuokaan ole...

 

Ministartin kanssa mahdollista.
Liikaa tilaa ei ole.
https://www.forabodiesonly.com/mopar/threads/hedman-78500.370294/

 

FABO:ssa on keskustelua noista kinusjkien imareista:

Cheap eBay Intakes

Sieltä yksi kommentti, joka kertoo paljon:

They've been around quite a while, and are sold under different names by different resellers: Speedmaster, Crosswind, etc. They're all the same. Cast offshore, fits LA and Magnum heads. Ports are a touch small for 340/360 heads, but are a bit larger than 273/318 heads. They seem to match up to the Magnum port "pretty" well. Nothing earth-shattering performance-wise; but they're a decent, inexpensive way to get a 4bbl. on your LA or Magnum.

 

^Pidetään noi kiinalaiset imarit mielessä, kun kerta sellaista Performeria tms eikä rautaistakaan ole löytynyt. Tätäkin olis mukava edistää välillä mutta koneistamossa kestää...

 

Sanderson Headersiltä löyty, DD7, DD8, DD9 mallit.
Tilasin omaan 360seen noi Dd9 sarjat
https://sandersonheaders.com/product/dd9-header-set-small-block-chrysler/?cgkit_search_word=Dd9

 

Tuli muuten mieleen, että tolle Compille on budjetti(?)vaihtoehtojakin:

Xtreme Energy 218/224 Hydraulic Flat Cam for Chrysler 273-360

Engine Family Chrysler 273-360 c.i. 8 Cylinder (1964-2002)
RPM Operating Range 1,300-5,600
Cam Type Hydraulic Flat Tappet
Advertised Intake Duration 262
Advertised Exhaust Duration 270
Intake Duration at .050 Inch Lift 218
Exhaust Duration .050 Inch Lift 224
Intake Valve Lift 0.462
Exhaust Valve Lift 0.47
Lobe Separation 110

vs.

MELLING 23203 Specifications

Advertised Exhaust Duration 298
Advertised Intake Duration 288
Basic Operating RPM Range 2800
Cam Type Hydraulic Flat Tappet
Computer Controlled Compatible No
Exhaust Duration at .050 inch Lift 224
Exhaust Valve Lift 0.466"
Exhaust Valve Lift with Factory Rocker Arm Ratio 1.500"
Intake Duration at .050 Inch Lift 214
Intake Valve Lift 0.444"
Intake Valve Lift with Factory Rocker Arm Ratio 1.500"
Lifter Type Hydraulic
Lobe Separation 112

Rockautosta löytyy.

ja

Summit Racing™ Classic Small Block Mopar Camshaft SUM-6901

Cam Style: Hydraulic flat tappet
Camshaft Use: Street/Strip
Camshaft Manufacturers Description: Fair-smooth idle, low-midrange power. Works with stock-2,000 stall, 9:1 and higher compression, and gearing.
Basic Operating RPM Range: 1,800-5,500
Duration at 050 inch Lift: 218 int./228 exh.
Advertised Duration: 276 int./288 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.441 int./0.441 exh.
Lobe Separation (degrees): 114

FABO:ssa joku on suht tyytyväinen ainakin tuohon Mellingin keppiin:

We have done quite a few different cams in stock 318s with a 4 bbl and headers. They love smaller tight LSA single pattern cams like the hi energy cam that was mention in the above post. The summit 6900 works well also, i think I would generally pick the hi energy single pattern over the 6900 though in a 318. For 318s we have quite a bit of experience running the Melling 23203 which is the next step up over that summit 6900, 214, 224 @ .050”, it is as large as I would go. I was more impressed with it than the 340 OEM cam. It has a decent lope at idle, we would shift it at 5500. That combo we ran a very very nice 904 with a shift kit and 3.23 gears. With the 3.23s it ran low 15s 1/4 mile E/T with the stock converter which consistently stalled to 2200 rpm. There was a LOT of performance left though with more converter, it doesn’t come on hard until 4000. We used 340 valve springs on all those, even turbocharged 2 of those engines with the Melling 214, 224 grind in 318s. Between the turbo engines and the tweaking we did N/A we had a lot of fun with that combo though, even ran 4.10 gears once. It has good top end even with deep gears, I ran 6700 rpm for 4 miles once in top gear with the 4.10s My brother (curiousyellow71) and a friend where driving the car back from a Friday night drag race and they made it to 6200 rpm in top gear with 3.23s in a 72 Satelite. Lol, down a bit of a long hill, but still 150 mph is pretty impressive out of a 318 in a b body. It didn’t set the world on fire for quick E/T’s in the quarter mile, 15s isn’t bad for what it was, but it sure was fun on the open road.

Still. with a stock converter, 4 bbl and headers and 2.73 gears, thru the 1/4 mile we found that the stock cam was about as quick as any of the other cams. That is why I would do the gear swap first.

 

Sellainen Compin XE262 nokka on jo matkalla, eli se on lyöty lukkoon.