what the biggest turbo you can put on a ls vtec in an em1 civic. engine is fully built and is bored out to 83mm. preferably a garret turbo

 

u can really choose any size turbo....just depends on when u want the boost to hit and how much hp u want to make heck go for a 42r haha

 

+1 to what Anavrin said.

You can slap any size turbo you want on it, just how late do you want the spool?

GT3071Rs would be kind of laggy on it already.

IMHO, i'd consider a GT2871R.

 

if you want a fully built daily driven monster, go with the 35r for sure. Decent spool time but can make some serious power. 7 psi on my buddies GSR made 358whp. 28psi on c16 he made 670whp and ran 10.6 at 142mph. He puts like 40 miles on his ride daily. Crazy but its pretty sick

 

30r is cool if you want 450whp max. Sick spool

 

gt28 is way to small.. maybe for a stock motor

 

358 whp does not come from 7psi on a 35r, sorry.


if your buddy only ran 10.6 with 670 whp hes doing something seriously wrong.


do any of you even own a boosted honda? It doesn't sound like it.

 

i got t72 dbb street car

 

he could have ran dat due to no traction. or type of tires on car. ijs.

 

Goal?
Budget?
Use of the car?

This thread is pointless without some added information. We'll all just be throwing out Turbo names with no rhyme or reason behind them.

 

the biggest turbo you could put, would be around a 72-74mm thats about the largest turbo people run, not saying It is the best for your setup. But about as big as people go on any Honda

 

Im running a T25 on my LS in my EG hatch, 12PSI, sometimes spikes a little higher around 13.5PSI. i love it, spools and takes off like a rocket around 3k RPM. looses traction at the top of third. and fourth. i really like the set-up, glad i swaped out the TD05 with the T25