List of Turbo Spool + Whp characteristics (averages)

WoohooRX · 09-06-2006, 12:22 PM

I've been researching turbos for the past few days, and realized there's no cohesive turbo spool + whp thread. I understand that it all depends on the TUNE and not all dynos are created equal, however, there seems to be an AVERAGE/COMMON spool/whp for most turbos.

I was hoping there could be a single thread, where newbies, like myself, could have a starting point, just so we don't see a million "____ turbo spool characteristics" or similiar type threads (which there have been a plethora of in the past few days)

This is what I've gathered going through the Factory 2.0L and PPB sections. Please keep in mind, these are all AVERAGES, there is a wide spectrum, absolutely dependent upon the tune.

I'll also need your help, please add anything I've missed, or correct me if I'm wrong in something.

The following is some of the more popular turbos which people ask about. A range of average spool times, and lastly, average Whp with accompanying basic mods (TBE, Injectors, Fuel Pump, IC if required), all data below is on 91-93 oct. pump gas.

Spool = The rpms listed below reflect the time where the turbo is fully engaged, ie the point where your head gets pushed back against the seat.

Turbo_____________Full Spool_____________Avg Whp_______Max Whp

Stock Td 04..........................2900 - 3100......................150 - 185
Td 04..................................2500 - 3000.......................210 - 230..............245
VF 23..................................3300 - 3500........................unsure
VF 34..................................3300 - 3500.......................250 - 270..............300
VF 30..................................3500 - 3700.......................240 - 270..............
VF 39..................................3750 - 4000.......................250 - 270..............
VF 22..................................3500 - 3800.......................265 - 290..............
Small 16g.............................3500 - 3700.......................260 - 280..............
Big 16g................................3500 - 3700.......................260 - 290..............
EVOIII 16g............................3500 - 3700.......................260 - 300..............
18g.....................................3750 - 4000........................280 - 310+............
20g.....................................3800 - 4200........................310++................. .

(The use of P&P, alky/meth, AVCS, etc. will usually decrease the spool times, and increase whp)

For the Max Whp line, keep in mind the following:
1. Dyno reading uncertainty
2. Highly modded, usually includes P&P, and may include alky/meth
3. Validated by atleast 1 person

Please don't bite my head off, I know spool times and whp threads usually end up in people arguing, but hopefully this can be a ROUGH guide.

Let me know if you want to add any other turbos to the list.

VF series turbos: Information taken from amukaoen (http://forums.nasioc.com/forums/show...highlight=vf23)

VF22:
This turbo has the highest output potential of all of the IHI VF series turbos and is the best choice for those who are looking for loads of top end power. The top end power however, does not come without a cost. The VF22 spools significantly slower than the rest of the IHI models due to the larger P20 exhaust housing and is much less suited for daily driving than some of the other models. Although the largest VF series turbo, the VF22 is not quite optimal for stroked engines or those who wish to run more than 20PSI of boost. The VF22 is best mated with the 2.0 block and in applications of 20lbs of boost or less.

VF30:
The VF30 is commonly considered the best bang for the buck turbo in the IHI VF series line. A relatively new model the VF30 features the the same exhaust housing as the VF24 but a larger compressor side similar to the VF22. The combination of these two parts results in increased output potential without the lag associated with the VF22. Although it doesn't offer the top end supremecy of the VF22, the VF30 is a great compromise between these unit and the quicker spooling models.

VF34:
The VF34 is nearly identical to the VF30, with the same exhaust housing and compressor. However the VF34 goes back to the ball bearing design, and in doing so achieves full boost approximately 500RPM sooner than the comparable VF30. The VF34 is the most recent IHI design and as such costs slightly more than its counterpart. Top end performance and maximum output are identical to the 30.

VF23
This turbo is considered a great all-around turbo. Like the VF22 it utilizes the largest P20 exhaust housing. This housing is mated with a smaller compressor housing of the of the VF24 for fast response and excellent low and mid-range performance. It does not have the same top end power of the VF22, but spools up significantly quicker. Standard ball bearing center section. Excellent bolt-on replacement for the standard WRX turbo on cars without any other major modifications. Expect flows around 430 CFM at 18 PSI.

Provided by Dark Rex (*Information was derived from many sources including NASIOC, MRT website, PPMotorsports website, clubwrx.net, scoobytech.net, WorldOne and Rallispec website.)

* Registered users of the site do not see these ads.

Assassin4457 · 09-06-2006, 12:30 PM

Im not biting off your head at all. This is a good idea. Well done.

shortys64 · 09-06-2006, 12:37 PM

Quote:

Originally Posted by WoohooRX

I've been researching turbos for the past few days, and realized there's no cohesive turbo spool + whp thread. I understand that it all depends on the TUNE and not all dynos are created equal, however, there seems to be an AVERAGE/COMMON spool/whp for most turbos.

I was hoping there could be a single thread, where newbies, like myself, could have a starting point, just so we don't see a million "____ turbo spool characteristics" or similiar type threads (which there have been a plethora of in the past few days)

This is what I've gathered going through the Factory 2.0L and PPB sections. Please keep in mind, these are all AVERAGES, there is a wide spectrum, absolutely dependent upon the tune.

I'll also need your help, please add anything I've missed, or correct me if I'm wrong in something.

The following is some of the more popular turbos which people ask about. A range of average spool times, and lastly, average Whp with accompanying basic mods (TBE, Injectors, Fuel Pump, IC if required).

Turbo_______________Spool____________Avg Whp
Stock Td 04.........................2600 - 2800.......................200 - 220
VF 34..................................3300 - 3500.......................250 - 270
VF 30..................................3500 - 3700.......................unsure
VF 39..................................3750 - 4000.......................250 - 270
VF 22..................................3800 - 4000.......................265 - 290
Small 16g..............................unsure
Big 16g.................................unsure
EVOIII 16g............................3500 - 3600.......................260 - 290
18g.....................................3750 - 4000........................280 - 310+
20g.....................................3800 - 4200........................310++

(The use of P&P, alky/meth, AVCS, etc. will usually decrease the spool times, and increase whp)

Please don't bite my head off, I know spool times and whp threads usually end up in people arguing, but hopefully this can be a ROUGH guide.

Let me know if you want to add any other turbos to the list.

+1 Good idea, well done

trustSTI · 09-06-2006, 12:57 PM

Well Done.

This thread should serve your intended purpose quite well.

-Joe

SparkysJDMSpeedWagon · 09-06-2006, 01:00 PM

Nicely done! A VF30 should make almost exactly the same power as a VF34, since they're both the same design. The only difference between them is that the VF34 is ball-bearing, so the spool is faster, but the power is the same.

peterex · 09-06-2006, 02:31 PM

Nice chart. What gear was used to obtain those spool times? Makes a big difference.

Bolster · 09-06-2006, 02:38 PM

It'd be good to post which gear those spool times are in. Also, if people can include logs and which gear the pulls were done in, we could get a better idea of how each turbo spools and maybe which mods help/hurt spool.

WoohooRX · 09-06-2006, 02:52 PM

Quote:

Originally Posted by SparkysJDMSpeedWagon

Nicely done! A VF30 should make almost exactly the same power as a VF34, since they're both the same design. The only difference between them is that the VF34 is ball-bearing, so the spool is faster, but the power is the same.

Thanks, I'll add the change

Quote:

Originally Posted by peterex

Nice chart. What gear was used to obtain those spool times? Makes a big difference.

To be honest I'm not sure what gear all those were done in. I just looked through a ton of threads to get those numbers, some people noted it, but most didn't.

I'll try to go through them again, and see what I can pick up.

TJRCS · 09-06-2006, 02:54 PM

I'm pretty sure most of people compare the spool up at 3rd since that's the widely used during highway pull

amukaoen · 09-06-2006, 02:55 PM

nice, when enough information gets compiled. i bet theres a great chance that it'll end up as a sticky... cause there are way too many.. "how much WHP and how bad will the spool be" threads everyday.

Jasper · 09-06-2006, 03:06 PM

just to make a note, there ARE TD04 powered WRX's making 240-250whp (albeit heavily modified)

(and FYI, my ported TD04 hits 18psi (in 5th gear) @ 2350ish RPM....4th is roughly 2500rpm, 3rd = ~ 2900rpm, 2nd (17.9psi) = ~ 3200rpm, and i managed to hit 16.6psi in first @ 3800 (although i cant get it to stay constant, it'll surge between 16 and 18psi, gotta mess w/ my WGDC's and temp compensation a bit more, because it changes with the weather)

ThisizBrian · 09-06-2006, 03:33 PM

my vf22 doesnt spool that late. its around 3400

Blown95ImpalaSS · 09-06-2006, 04:20 PM

I run a vf39 and I believe that in general they spool a bit more quickly (~ 3300 rpms) than the other vf series turbos because it is the smallest of those you have listed aside from the td04. The horsepower figures are right on target though.

my .02..

dingobite · 09-06-2006, 04:26 PM

Nice...............

Now if there was some type of topend chart for the 2.0 to go with it.

Like
TopEnd Distance

16g/Vf -----?
Evo3 -------??
18g --------???
Anything Bigger - ? +

wrxzboost · 09-06-2006, 04:27 PM

even though they are approximate times, i think the stock td04 is the hardest to get right since a full exhaust significantly changes the spool characteristics of the turbo. after cobb stage 2, i can hear my turbo spool at 1800-1900 rpms...insanely early. but its a nice idea; especially for noobs.

JWill7 · 09-06-2006, 04:32 PM

Awesome idea. Subscribing in case it doesn't get stickied.

WoohooRX · 09-06-2006, 04:36 PM

Quote:

Originally Posted by ThisizBrian

my vf22 doesnt spool that late. its around 3400

Quote:

Originally Posted by Blown95ImpalaSS

I run a vf39 and I believe that in general they spool a bit more quickly (~ 3300 rpms) than the other vf series turbos because it is the smallest of those you have listed aside from the td04. The horsepower figures are right on target though.

my .02..

It's important to keep in mind that everyone has access to different tuners. I really think you guys have really good tunes. The general concensus out there, is that the VF34 is the quickest spooling of the vf series turbos. Followed by the VF39, and then lastly the VF22.

I just put those numbers up because it seems like, from reading a ton of threads on these turbos, that the 39/22 are later spoolers, but tend to have a higher top end.

If some more people chime in with their comments/setups/results then we can change it.

REX8 · 09-06-2006, 04:53 PM

I'd say most peoples TD04 on EM are at least the 220 whp mark. maybe 220-230 average.

ErasureWRX · 09-06-2006, 05:11 PM

Sticky!!
Awesome work. I was just deciding on a turbo, and this would have saved me many hours of searching.

amukaoen · 09-06-2006, 05:15 PM

id say 210-225 whp for TD04 is average. So you're definatly spot on. Cobb OTS Stage 2 map probably claims the majority of these users.

prometheum · 09-06-2006, 05:17 PM

i got a small 16g spools at arround 3400ish can't tell you how much hp though

Token-Negro · 09-06-2006, 05:28 PM

What PSI do u consider spool? 18? 19? 22? etc might want to add that to the list.

shikataganai · 09-06-2006, 05:32 PM

Quote:

Originally Posted by TJRCS

I'm pretty sure most of people compare the spool up at 3rd since that's the widely used during highway pull

you'd be surprised at how many schmucks here on nasioc quote 5th gear pulls on the highway under load...

Assassin4457 · 09-06-2006, 06:10 PM

Quote:

Originally Posted by Token-Negro

What PSI do u consider spool? 18? 19? 22? etc might want to add that to the list.

Good Point there. When everyone says "it spools at xxxx, what do you really mean ? Are you at full boost at xxxx, or just making boost then?

baldchicken · 09-06-2006, 06:49 PM

Very good write up. I always did the research on the interweb about the different turbos, but there wasnt really anything to compare them. Thanks for taking the time to do this for us.

09-06-2006, 12:22 PM	#1
WoohooRX Scooby Newbie Member#: 70296 Join Date: Sep 2004 Chapter/Region: Tri-State Location: nyc Vehicle: 04 WRX rally blue	List of Turbo Spool + Whp characteristics (averages) I've been researching turbos for the past few days, and realized there's no cohesive turbo spool + whp thread. I understand that it all depends on the TUNE and not all dynos are created equal, however, there seems to be an AVERAGE/COMMON spool/whp for most turbos. I was hoping there could be a single thread, where newbies, like myself, could have a starting point, just so we don't see a million "____ turbo spool characteristics" or similiar type threads (which there have been a plethora of in the past few days) This is what I've gathered going through the Factory 2.0L and PPB sections. Please keep in mind, these are all AVERAGES, there is a wide spectrum, absolutely dependent upon the tune. I'll also need your help, please add anything I've missed, or correct me if I'm wrong in something. The following is some of the more popular turbos which people ask about. A range of average spool times, and lastly, average Whp with accompanying basic mods (TBE, Injectors, Fuel Pump, IC if required), all data below is on 91-93 oct. pump gas. Spool = The rpms listed below reflect the time where the turbo is fully engaged, ie the point where your head gets pushed back against the seat. Turbo_____________Full Spool_____________Avg Whp_______Max Whp Stock Td 04..........................2900 - 3100......................150 - 185 Td 04..................................2500 - 3000.......................210 - 230..............245 VF 23..................................3300 - 3500........................unsure VF 34..................................3300 - 3500.......................250 - 270..............300 VF 30..................................3500 - 3700.......................240 - 270.............. VF 39..................................3750 - 4000.......................250 - 270.............. VF 22..................................3500 - 3800.......................265 - 290.............. Small 16g.............................3500 - 3700.......................260 - 280.............. Big 16g................................3500 - 3700.......................260 - 290.............. EVOIII 16g............................3500 - 3700.......................260 - 300.............. 18g.....................................3750 - 4000........................280 - 310+............ 20g.....................................3800 - 4200........................310++................. . (The use of P&P, alky/meth, AVCS, etc. will usually decrease the spool times, and increase whp) For the Max Whp line, keep in mind the following: 1. Dyno reading uncertainty 2. Highly modded, usually includes P&P, and may include alky/meth 3. Validated by atleast 1 person Please don't bite my head off, I know spool times and whp threads usually end up in people arguing, but hopefully this can be a ROUGH guide. Let me know if you want to add any other turbos to the list. VF series turbos: Information taken from amukaoen (http://forums.nasioc.com/forums/show...highlight=vf23) VF22: This turbo has the highest output potential of all of the IHI VF series turbos and is the best choice for those who are looking for loads of top end power. The top end power however, does not come without a cost. The VF22 spools significantly slower than the rest of the IHI models due to the larger P20 exhaust housing and is much less suited for daily driving than some of the other models. Although the largest VF series turbo, the VF22 is not quite optimal for stroked engines or those who wish to run more than 20PSI of boost. The VF22 is best mated with the 2.0 block and in applications of 20lbs of boost or less. VF30: The VF30 is commonly considered the best bang for the buck turbo in the IHI VF series line. A relatively new model the VF30 features the the same exhaust housing as the VF24 but a larger compressor side similar to the VF22. The combination of these two parts results in increased output potential without the lag associated with the VF22. Although it doesn't offer the top end supremecy of the VF22, the VF30 is a great compromise between these unit and the quicker spooling models. VF34: The VF34 is nearly identical to the VF30, with the same exhaust housing and compressor. However the VF34 goes back to the ball bearing design, and in doing so achieves full boost approximately 500RPM sooner than the comparable VF30. The VF34 is the most recent IHI design and as such costs slightly more than its counterpart. Top end performance and maximum output are identical to the 30. VF23 This turbo is considered a great all-around turbo. Like the VF22 it utilizes the largest P20 exhaust housing. This housing is mated with a smaller compressor housing of the of the VF24 for fast response and excellent low and mid-range performance. It does not have the same top end power of the VF22, but spools up significantly quicker. Standard ball bearing center section. Excellent bolt-on replacement for the standard WRX turbo on cars without any other major modifications. Expect flows around 430 CFM at 18 PSI. Provided by Dark Rex (Information was derived from many sources including NASIOC, MRT website, PPMotorsports website, clubwrx.net, scoobytech.net, WorldOne and Rallispec website.) Registered users of the site do not see these ads. Last edited by WoohooRX; 09-21-2007 at 08:55 AM.

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09-06-2006, 12:30 PM	#2
Assassin4457 Scooby Specialist Member#: 96773 Join Date: Sep 2005 Chapter/Region: E. Canada Location: GTA, Ontario Canada. Vehicle: 04 WRX, RIP GC8 Black	Im not biting off your head at all. This is a good idea. Well done.

09-06-2006, 12:57 PM	#4
trustSTI Scooby Specialist Member#: 100673 Join Date: Nov 2005 Chapter/Region: MAIC Location: Glen Dirty Vehicle: 04 STi Aspen	Well Done. This thread should serve your intended purpose quite well. -Joe

09-06-2006, 01:00 PM	#5
SparkysJDMSpeedWagon Scooby Specialist Member#: 52530 Join Date: Jan 2004 Chapter/Region: South East Location: Goldsboro, NC Vehicle: 2004 For Sale: Silver 04 wagon w/18g	Nicely done! A VF30 should make almost exactly the same power as a VF34, since they're both the same design. The only difference between them is that the VF34 is ball-bearing, so the spool is faster, but the power is the same.

09-06-2006, 02:31 PM	#6
peterex Scooby Specialist Member#: 27021 Join Date: Oct 2002 Chapter/Region: MWSOC Location: IL Vehicle: 2015 WRX	Nice chart. What gear was used to obtain those spool times? Makes a big difference.

09-06-2006, 02:38 PM	#7
Bolster Scooby Specialist Member#: 22290 Join Date: Aug 2002 Chapter/Region: TXIC Vehicle: 2002 STI Ver 9 Spec C Wagon	It'd be good to post which gear those spool times are in. Also, if people can include logs and which gear the pulls were done in, we could get a better idea of how each turbo spools and maybe which mods help/hurt spool.

09-06-2006, 02:54 PM	#9
TJRCS Scooby Specialist Member#: 59199 Join Date: Apr 2004 Chapter/Region: South East Location: Atlanta, GA Vehicle: 2008 STI DGM	I'm pretty sure most of people compare the spool up at 3rd since that's the widely used during highway pull

09-06-2006, 02:55 PM	#10
amukaoen Scooby Specialist Member#: 62595 Join Date: May 2004 Chapter/Region: SCIC Location: San Diego, CA Vehicle: 04 WRX Cobb S2 World Rally Blue	nice, when enough information gets compiled. i bet theres a great chance that it'll end up as a sticky... cause there are way too many.. "how much WHP and how bad will the spool be" threads everyday.

09-06-2006, 03:06 PM	#11
Jasper Scooby Specialist Member#: 80136 Join Date: Jan 2005 Chapter/Region: NESIC Location: Saugus, MA Vehicle: 2006 Ford F-150 Black	just to make a note, there ARE TD04 powered WRX's making 240-250whp (albeit heavily modified) (and FYI, my ported TD04 hits 18psi (in 5th gear) @ 2350ish RPM....4th is roughly 2500rpm, 3rd = ~ 2900rpm, 2nd (17.9psi) = ~ 3200rpm, and i managed to hit 16.6psi in first @ 3800 (although i cant get it to stay constant, it'll surge between 16 and 18psi, gotta mess w/ my WGDC's and temp compensation a bit more, because it changes with the weather)

09-06-2006, 03:33 PM	#12
ThisizBrian Scooby Specialist Member#: 106117 Join Date: Jan 2006 Chapter/Region: SCIC Location: Los Angeles Vehicle: 2002 WRX WRB	my vf22 doesnt spool that late. its around 3400

09-06-2006, 04:20 PM	#13
Blown95ImpalaSS Scooby Specialist Member#: 87629 Join Date: May 2005 Chapter/Region: SCIC Location: Los Angeles	I run a vf39 and I believe that in general they spool a bit more quickly (~ 3300 rpms) than the other vf series turbos because it is the smallest of those you have listed aside from the td04. The horsepower figures are right on target though. my .02..

09-06-2006, 04:26 PM	#14
dingobite Scooby Specialist Member#: 82391 Join Date: Mar 2005 Chapter/Region: MWSOC Location: Lou. ky Vehicle: 08 OBP Sti	Nice............... Now if there was some type of topend chart for the 2.0 to go with it. Like TopEnd Distance 16g/Vf -----? Evo3 -------?? 18g --------??? Anything Bigger - ? +

09-06-2006, 04:27 PM	#15
wrxzboost Scooby Guru Member#: 86322 Join Date: May 2005 Chapter/Region: MWSOC	even though they are approximate times, i think the stock td04 is the hardest to get right since a full exhaust significantly changes the spool characteristics of the turbo. after cobb stage 2, i can hear my turbo spool at 1800-1900 rpms...insanely early. but its a nice idea; especially for noobs.

09-06-2006, 04:32 PM	#16
JWill7 Scooby Newbie Member#: 123261 Join Date: Aug 2006 Chapter/Region: NESIC Location: Somerville, MA Vehicle: 2011 WRX 5-Door Satin White Pearl	Awesome idea. Subscribing in case it doesn't get stickied.

09-06-2006, 04:53 PM	#18
REX8 * Banned * Member#: 24038 Join Date: Sep 2002 Chapter/Region: South East Location: Godspeed Cale...	I'd say most peoples TD04 on EM are at least the 220 whp mark. maybe 220-230 average.

09-06-2006, 05:11 PM	#19
ErasureWRX Scooby Specialist Member#: 106408 Join Date: Jan 2006 Chapter/Region: MAIC Location: Reston Vehicle: '14 Mystery Machine 01 Kat600	Sticky!! Awesome work. I was just deciding on a turbo, and this would have saved me many hours of searching.

09-06-2006, 05:15 PM	#20
amukaoen Scooby Specialist Member#: 62595 Join Date: May 2004 Chapter/Region: SCIC Location: San Diego, CA Vehicle: 04 WRX Cobb S2 World Rally Blue	id say 210-225 whp for TD04 is average. So you're definatly spot on. Cobb OTS Stage 2 map probably claims the majority of these users.

09-06-2006, 05:17 PM	#21
prometheum Scooby Specialist Member#: 92003 Join Date: Jul 2005 Chapter/Region: SCIC Location: Tatooine Vehicle: 04 bicycle!	i got a small 16g spools at arround 3400ish can't tell you how much hp though

09-06-2006, 05:28 PM	#22
Token-Negro Scooby Specialist Member#: 81659 Join Date: Feb 2005 Chapter/Region: NWIC Location: Snoqualmie Vehicle: 2006 STI / 2010 FXT Aspen White / Silver	What PSI do u consider spool? 18? 19? 22? etc might want to add that to the list.

09-06-2006, 06:49 PM	#25
baldchicken Scooby Specialist Member#: 92670 Join Date: Aug 2005 Location: OREGON Vehicle: 03 WRX Silver	Very good write up. I always did the research on the interweb about the different turbos, but there wasnt really anything to compare them. Thanks for taking the time to do this for us.