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3800 gsk

How to make it go fast

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3800 gsk

Postby skilletky » Fri Mar 18, 2011 8:32 pm

has anyone on here ever run one or currently use one? been thinking about getting one, but was doing some research and read that the 4200 or 3800 spring is longer than the 366 and can cause the gov to stick at higher rpms.
92 d350, arp's, orings, 150lb springs, 4200 gsk ,ground pin ,64/71/14 ,ddp inj's, ats manifold, tim's tubez, ats trans, FASS, locker, timing + a tooth, bcdd intake

2001 2wd rclb dually 5sp, smarty, Bluechip FMS, TS MVP, 57/75 twins, stainless diesel pipe kit, valair clutch, airdog 150, DFI SAC 7x.014's, cheap a$$ intake, ARP studs, oringed head, CPP 115# springs
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Re: 3800 gsk

Postby Richie O » Fri Mar 18, 2011 8:35 pm

They need to be trimmed to the correct length. Pulltilbroke runs a 4200 and he trimmed it. He could tell you better then me.
1989 W250 727, 3.07 L/S, S300, P/S Intercooler, Stans exaust, Pump adjustments, 127k miles,297 hp
1993 W250 extended cab, rag, 4.10 l/s, 6x16's, HTT 62/71/14 piston l/p, Isspro EV series tach, fuel pressure, boost, oil pres, water temp, volt, pryo, 132k/ 301 hp
1992 W250 with NV4500, 3.54's, 16cm 60mm GDS H1C, ground stock cone, Isspro tach, pryo, boost, fuel pressure, slow, rusty, dented,180k
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Re: 3800 gsk

Postby skilletky » Fri Mar 18, 2011 9:12 pm

thanks richie, i just read a few threads below about the 4200 needing trimmed, but didnt see anything about the 3800. think i might just buy one and check it out. its only 30 bucks.
92 d350, arp's, orings, 150lb springs, 4200 gsk ,ground pin ,64/71/14 ,ddp inj's, ats manifold, tim's tubez, ats trans, FASS, locker, timing + a tooth, bcdd intake

2001 2wd rclb dually 5sp, smarty, Bluechip FMS, TS MVP, 57/75 twins, stainless diesel pipe kit, valair clutch, airdog 150, DFI SAC 7x.014's, cheap a$$ intake, ARP studs, oringed head, CPP 115# springs
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skilletky
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Re: 3800 gsk

Postby skilletky » Fri Mar 18, 2011 9:36 pm

was also thinking of getting a new set of injectors, right now i got a tired set of new era 370's. was wanting to get something with a little extra umph. is it worth getting the ddp stg 4's. would pod's make more or less power than my current injectors?
92 d350, arp's, orings, 150lb springs, 4200 gsk ,ground pin ,64/71/14 ,ddp inj's, ats manifold, tim's tubez, ats trans, FASS, locker, timing + a tooth, bcdd intake

2001 2wd rclb dually 5sp, smarty, Bluechip FMS, TS MVP, 57/75 twins, stainless diesel pipe kit, valair clutch, airdog 150, DFI SAC 7x.014's, cheap a$$ intake, ARP studs, oringed head, CPP 115# springs
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skilletky
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Location: northern ky
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Re: 3800 gsk

Postby ciamcoop » Sat Mar 19, 2011 3:19 am

Is it really worth spinning it close to 4000 without major pump mods? Anyone have a dyno sheet showing that it'll keep pulling that high? I know mine isn't really done up much but I can feel the power plane out by 3000.
'93 W250LE 4x4 club cab, getrag, denny t, 366 spring, 181/210 cam, bored. 020, KDP, 5x.014's, piston pump, 4" tbe, cold air, 255/85/16s, 3.54's one wheeler peeler
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Re: 3800 gsk

Postby SNOOT » Sat Mar 19, 2011 8:16 am

I run a 4200 spring with a good valve spring system. I dont use it for the HP factor but for the top speed fun in OD.. I did not trim my spring just indexed it so it worked.
1993 W350
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Re: 3800 gsk

Postby skilletky » Sat Mar 19, 2011 2:37 pm

thats what i am looking for, a little more top speed. it does good now' but it figure a few more rpms can be better.
92 d350, arp's, orings, 150lb springs, 4200 gsk ,ground pin ,64/71/14 ,ddp inj's, ats manifold, tim's tubez, ats trans, FASS, locker, timing + a tooth, bcdd intake

2001 2wd rclb dually 5sp, smarty, Bluechip FMS, TS MVP, 57/75 twins, stainless diesel pipe kit, valair clutch, airdog 150, DFI SAC 7x.014's, cheap a$$ intake, ARP studs, oringed head, CPP 115# springs
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skilletky
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Re: 3800 gsk

Postby skilletky » Mon Mar 21, 2011 7:17 am

do i need heavier valve springs with the 3800 gsk?
92 d350, arp's, orings, 150lb springs, 4200 gsk ,ground pin ,64/71/14 ,ddp inj's, ats manifold, tim's tubez, ats trans, FASS, locker, timing + a tooth, bcdd intake

2001 2wd rclb dually 5sp, smarty, Bluechip FMS, TS MVP, 57/75 twins, stainless diesel pipe kit, valair clutch, airdog 150, DFI SAC 7x.014's, cheap a$$ intake, ARP studs, oringed head, CPP 115# springs
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Re: 3800 gsk

Postby PToombs » Mon Mar 21, 2011 5:03 pm

Ah yup. ;)


Well, if you plan on running it up there on a regular basis, and/ or holding it up there.
pete

Just enough power to break everything behind the crankshaft.
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