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View Full Version : Well shoot, crossroads...1jz or NA-T


Dramon
10-25-2005, 06:05 AM
Welp, I finally added up all the numbers for my parts spreadsheet i've been making and I came to a realization. It will end up costing me the same at this point for a 1jz as it would to turbo my current GE.

All the parts i've bought so far for my NA-T swap I could still use for the 1JZ if i decided to go that route.

I really don't know what to do. On one hand, parts for the GE would be easier to find, but my GE is about to push 140k and as far as engines go I question it's health.

If I turbo my GE then I have to worry about getting coolers and beefing up the auto tranny and will still be limited to 325 or so rear wheel horses with a 6200 rpm redline.

If I go 1JZ then I dont have to worry about my tranny for a while, and get that sweet redline.

On the other hand if I turbo my GE aside from the tranny issue, i'm already single turbo...everything is all set and for the most part outside of my tranny problem, I want more horsepower I just crank up the boost or get a bigger turbo.

How reliable is the 1jz? I don't want my shit to break and not be able to find parts for it. And I need all the accessories.

This is part of the whole reason why I didn't rebuild my RX-7. Sure it was fast as balls, but no a/c, no p/s, and all of its harshness as well as the constant fear of, oh shit...if my engine craps out i'm screwed, just doesnt fit my current lifestyle.

I need that Toyota reliability too.

Help me out guys.

Brown Duckz
10-25-2005, 08:41 AM
Show your calculations for each setup..... I don't see how that na-t kit is anywhere near as cheap as a 1JZ swap [considering you'd put it in stock].

ROPADOPA
10-25-2005, 11:55 AM
pretty simple if you start with a turbo motor you will go farther than a non turbo motor

Dramon
10-25-2005, 02:37 PM
Need to Buy
Turbo 650 Left
230 SSAUTOCHROME Manifold (ebay)
SSAUTOCHROME Downpipe
SSAUTOCHROME Intake pipe
160 40MM Wastegate 7 psi spring (ebay)
50 Exhaust Flex Tube
30 V-Band
20 BOV Valve
160 Oil Line Kit (DaveH)

FMIC 200 Left
50 Couplers
100 Piping
50 T-Bolt Clamps


Fuel
100 Walbro 255lph Fuel Pump **(DaveH)

Misc 390 Left
40 Stereo Harness *
350 Wideband O2






1340 Total

Brown Duckz
10-25-2005, 02:46 PM
Need to Buy
Turbo 650 Left
230 SSAUTOCHROME Manifold (ebay)
SSAUTOCHROME Downpipe
SSAUTOCHROME Intake pipe
160 40MM Wastegate 7 psi spring (ebay)
50 Exhaust Flex Tube
30 V-Band
20 BOV Valve
160 Oil Line Kit (DaveH)

FMIC 200 Left
50 Couplers
100 Piping
50 T-Bolt Clamps


Fuel
100 Walbro 255lph Fuel Pump **(DaveH)

Misc 390 Left
40 Stereo Harness *
350 Wideband O2






1340 TotalOkay, what are you going to tune with? So I'm guessing you're going to run stock compression/stock fuel. Nothing wrong with that. Did you add in shipping cost of everything? What transmission are you on?

Dramon
10-25-2005, 05:05 PM
HKS S-AFR yeah, stock comp and stock fuel...i'm on the 4speed auto. That's not including any sort of tranny coolers or tranny flush either.

Ikon
10-26-2005, 12:21 PM
get the best of both worlds and do a 1.5jz with your 2jz block and everything else from the 1jz.
_Niko