2kdrift

SO im looking for best possible spool time, and at the same time retaining 100% traction or a decent balance between the two with more of a emphasis on spool time

I currently have a .4 Bar which works out to 5.8 PSI, after pressure drop I actually only see about 4.75 PSI
Using mac boost controller

Will this have negative effects on spool time?

I have some other springs laying around that came with my Tial 42MM wastegate

Ill try to pull up the specs on those

motoxxxman

best way to ensure fastest spool time is to use a 4-port solenoid and ecu controlled boost control with hondata s300.

second best way to increase spool time is to keep total charge pipe/fmic volume as small as possible.

a little timing retard in special areas can help too

2kdrift

I have this, I remember tonythetiger was saying something about using a firmer spring to help prevent wastegate from partialy opening under boost prematurely. I guess Ill just want a couple more days and see how my spring reacts on the dyno.

Thankyou

motoxxxman

yeah, firmer spring always helps too, guess I should have included that haha. my personal rule of thumb is to use a spring rated at whatever the minimum boost you'll be running. so if you want 10psi all through first gear, use a 10psi spring. and the 4-port solenoid can control it up to around 40psi

2kdrift

I wanted a low boost level in first Gear so I special orderd the red 5.8 PSI, I actually totally forgot about the 1 psi drop after intercooler at the time. but I was thinking ~6 psi would be a good match for my ITR trans in first gear

I have the 3 original springs that came inside of the wastegate from the factory, pretty sure the box said 14 PSI. But going off the chart these 3 springs = 21.75 PSI Thinking of possibly putting the black one back in

Looking at the tial color chart this is what I have found

far right Black 8.7 PSI
middle Blue (seems to =8.7 PSI)
Far left green 4.35 PSI

motoxxxman

yup, looks like blue is 8.7psi

larger turbos sometimes dont even spool fully in first gear, so you can even go with a spring pressure according to what you plan to run in 2nd gear. I never go full throttle in 1st gear anyway myself, too much torque and too low of a gear ratio even on slicks. I actually launch around 10in/Hg of vacuum, and never exceed 55% throttle in first gear before shifting to 2nd.

turbohatch96y7

iTrader: (15)

Retarding ign doest help spool

LightningTeg

Yeah Id like to hear about that.

2kdrift

first gear just hit boost (small turbo) about the same time as vtec kicked I think I saw about 3.5 PSI before 6k which is pretty close to full boost for the spring I have.

I cant really do to much right now im just on a base map, Im having it tuned it this week. if i can get 4 times my pring pressure that will be 19 psi or so.

A guy on D series made 390 @ 19 psi with this same turbo which is pretty much what im looking for. Even so the black spring might be better, only problem is swapping it out...had to have help last time I installed the v-band wastegate

motoxxxman

no? then explain to us how anti-lag and launch control work SirGuru lol
while you're at it, if it doesnt work, then explain to me how its so effective that manufacturers actually use it in factory maps, a set of parameters specifically designed for spooling the turbo faster, from the factory

turbohatch96y7

iTrader: (15)

Can you show proof? A datalog would do

turbohatch96y7

iTrader: (15)

Anti lag works because there is no load on the motor

LightningTeg

Anti lag is for launching the car and between shifts to keep turbo spooled its not for spooling the car up on an otherwise normal acceleration. IT is extremely harsh on the turbo.

96ekb20

can some show how to set the lines up on a 3 port to get it to spool faster and make sure the gate stay shut? im running 14.5 and i have no issues making and holding full boost but would going to my big red tail spring help spool ? as i can still use the controller since its below my boost level. ya id agree retarding timing will not help spool we try to keep timing as close to no vacuum for the first few psi for that reason to help spool not pull timing.

Turbo-LS

iTrader: (4)

Just manipulate the boost by gear table to make the gate stay shut longer. But yes a heavier rate spring will allow the gate to stay shut longer and in turn help with initial spool
Up

96ekb20

idk about OP but im not running . so which of these set ups are better.