New project, few questions

[Slomaro Z28]

I am working on building a boosted D series. I am not buying any ebay parts and trying to make it reliable as possible. Power numbers should be around 300+/- to the wheels. My question is when should the transmission be beefed up? Will the trans hold up at these power numbers, with only a clutch and flywheel? If it needs to be beefed up where is a good place to have it done?

setup will be....

D16Y8

Turbo- Precision 4831B .63 a/r
GO-Autoworks Cast manifold
Tial 38mm WG
HKS SSQV BOV
FMIC 2.5 piping
Full 3" turbo back exhaust
750cc RC injectors
Walbro 255
RCautoworks custom d16 rods and vitara pistons (http://www.rcautoworks.com/eg/product_info.php?cPath=79&products_id=293)(75.5mm)
Comp Clutch stage 4
Comp Clutch 9lb flywheel
Tuned on chrome

any input would be greatly apprenticed.

[Drummerboy]

All I know about D series trannies is that the automatics blow up at 200whp. Constantly.

If you have the money, d2b might be a nice idea.

[Slomaro Z28]

haven't really thought of that, thanks.

[Slomaro Z28]

Anyone else have any input? Trying to do this right, but don't wanna change the transmission if it's not needed.

[carbon_crash]

Don't forget ARP headstuds

[Slomaro Z28]

Don't forget ARP headstuds

yeah they come with the piston/rod combo.....from RCAutoworks.

[green91]

Trans will be fine at 300whp. Ive only ever had the ISB fail, but idk what the mileage was on the trans. It had been well abused. You'll want a LSD though.

[carbon_crash]

O.P.- are you going to build the bottom end and run a stock head?

[Slomaro Z28]

O.P.- are you going to build the bottom end and run a stock head?

Depends, how my wallet feels after list above. Bisimoto 2.4 cam is possible with valve train of course.

[EmminoDaGreat]

Here is my suggestion

Get the custom length rods, or the vitara's are going to suck big dick. The compression sucks with stock length eagles, and makes for a laggy, not much throttle response type engine.

I recently built a custom rod/ vitara for a customer and it made 255 @ 14 psi, on stock head.
The trans itself will hold, but depending on your driving you may break a diff, or rip teeth off the ring gear on wheel hop situations.

You will need a 3 bar map sensor, a boost controller etc...

[Slomaro Z28]

Here is my suggestion

Get the custom length rods, or the vitara's are going to suck big dick. The compression sucks with stock length eagles, and makes for a laggy, not much throttle response type engine.

I recently built a custom rod/ vitara for a customer and it made 255 @ 14 psi, on stock head.
The trans itself will hold, but depending on your driving you may break a diff, or rip teeth off the ring gear on wheel hop situations.

You will need a 3 bar map sensor, a boost controller etc...

On the site it says custom length rods, 9:1 CR...My civic w/ LS swap made 250whp with an ebay kit, I was happy with that power level...just had too many issues with compressor surge, BOV sticking, etc. I know I need the MAP sensor and a manual boost controller is on the list also. A lot of little stuff that I need that not listed above...motor mounts, boost gauge, etc.

[Drummerboy]

I've got a glowshift boost gauge and an HKS EVC5 boost controller for sale if you're interested. $20 and $300.

[JDMJ]

Yeah, trans will be fine at 300whp. LSD is always a plus though.. i made 280/206 and loved it.