D Turbo general Questions.....

[AlbusAngelus]

First question would be compression on the pistons/rods... I've heard that lower compression is advantageous to a Turbo setup... can anyone explain?


The turbo is a T25 and the block is gonna be completely built... both top (eventually) and bottom (before the swap)...
I'd like to get up around 200 horse and get used to driving a turbo vehicle....lol.......then after I rebuild the top (and win the lottery 8) ) drop some mega boost in there....

So what I'm asking is... Is there a good piston/rod combo that would work well with a lower boost setup and a higher boost setup and what would you recommend... (If they differ I'm mainly after the best combo for a T25 low boost setup ..200 horseish) Also, they would have to be able to withstand a small shot of nitro...

Thanks!

 

[AlbusAngelus]

First question would be compression on the pistons/rods... I've heard that lower compression is advantageous to a Turbo setup... can anyone explain?


The turbo is a T25 and the block is gonna be completely built... both top (eventually) and bottom (before the swap)...
I'd like to get up around 200 horse and get used to driving a turbo vehicle....lol.......then after I rebuild the top (and win the lottery 8) ) drop some mega boost in there....

So what I'm asking is... Is there a good piston/rod combo that would work well with a lower boost setup and a higher boost setup and what would you recommend... (If they differ I'm mainly after the best combo for a T25 low boost setup ..200 horseish) Also, they would have to be able to withstand a small shot of nitro...

Thanks!

Oh... the block might be helpful too .... it's a D16Y7

 

[Eran]

Well, low compression = less power, but less chance of detonation. Esentially, you can boost more (and in the long run, get more power) out of lower compression, because your motor won't take a s**t.

 

[lkailburn]

the stock rods and pistons can take you to 200whp without problems on a good tune. key word is good tune. i've seen people run 250whp on the stock bottoms for periods of time but i think most of those crapped the ringlands at about a years time length.(i wouldn't recommend running that much whp on the stock bottom end but it has been done by a few) its also relative to the condition of your motor before the turbo.

the t25 is a good turbo for your 200hp level but not much more. its kinda too small to get you much higher than that. it'd prolly max out under 250whp

alot of ppl like the eagle rods and CP Forged 9:1 pistons.

 

[D Grade]

It's true that you can acheive your goal w/o building. Many people have taken D-series motors over 200whp w/o building. If you want to run serious boost though, you need to continue your plan to build.

For that 200whp power level though, I would pass on the T25 notion. It's going to be tricky getting there on a "T-2 small". Instead, go with a TD05-14B off of a 1G DSM. It will still spool quick, but outflows the T25 by close to 10lbs per/min (more with porting). That should get you to your goal just fine.

 

[AlbusAngelus]

Okay, thanks for the info everyone... I've already made the decision to build even if I'm only going to 200 .. cause the bottom needs to be abe to handle NOS 50/75 at 200 whp. SO would I need to reienforce the top end or will stock componets on the top handle that much power...

also Ealge/CP combo is that the winner?

I'm looking ionto that DSM Turbo... I may be able to get one really cheap... and where I work we rebuild turbos.... hmmmmmm

 

[AlbusAngelus]

Okay, thanks for the info everyone...

I've already made the decision to build even if I'm only going to 200 .. cause the bottom needs to be abe to handle NOS 50/75 at 200 whp. SO would I need to reienforce the top end or will stock componets on the top handle that much power...

also Ealge/CP combo is that the winner?

I'm looking ionto that DSM Turbo... I may be able to get one really cheap... and where I work we rebuild turbos.... hmmmmmm

Anyone?

 

[D Grade]

I don't see why you would need to build the head unless you plan on reving much higher than stock rev limit. If you are, go with a turbo cam (dunno if Gude makes a turbo specific cam for D-16's or not), portflow or retainers of your choice, valvesprings of your choice, and rev away.

While the head is off, I would at least port match the intake side and maybe do some light porting on the exhaust side as well.

 

[oscarmayer]

Anyone?

for pistons I'd recommend endyn rollerwaves. not only are they better designed to fit your motor, but they are also the only manufacturer that properly finihsed the pistons. before shipping to the customers. all those pretty sharp edges cause power loss and detonation due to heat spots and iterfier with flowing.

 

[oscarmayer]

Stay away from gude. if you want a nice cam, get the crower. I've seem some of gude,s recent work. it's nothing to shake even a stick at.