what turbo for 350 to 400ish bhp

thinking of a new turbo so want that sort of guideline for power if that makes sence

cheers

 

TD05 18g or 20g
MD321H

 

dont supose you know what a sti V3 should come woth by any chance ?

 

MD321H

 

did the STi 3 have a VF22 ??

Anyway......Scoobydazza has answered your question

Shaun

 

Lateral MD321h is the only choice

 

where from can i get this and price options please

many thanks !

 

Lateral Performance

Rich

 

cheers peeps !

 

it depends what its used for i was in the same dillama about 3months ago i wanst sure what to go for at first it was the MD321h,fpgreen,20g or 18g the are rated from 370 to about 500?20g pulls so hard on the top end i got 402 with 365 of torque only half of the price of the MD. 18G is quick spooling great for road driving.the MD is a great turbo great reviews all the time but cant justify paying 1500 pounds for it and i have never been in a car that had an md so i cant rate it but as ive said ive never been in a car that has an MD.the 20g isnt laggy as people make out it is.i think if you have a great mapper u should be ok mine was mapped to 1.65 bar by Neil from Slow boy racing, couldnt be happier.also what gearbox,clutch and engine do u have?

 

out of interest, why?

 

APS SR40

 

strange that as a certain mapper said whoever designed that particular turbo knows nothing about turbos, or words to that effect, not my words, unless there has been a direct comparrison to other turbos nobody can say ones better than the other, has anybody done it yet?

 

at the monent its standard, im just building a list og things i need, its a V3 sti with a mines ecu,,,, not sure what else its got yet though

if the H/Gasket has gone then im gonna do engine freshen up at the same time and then look at cams too

for the monent though i just want a list for around 350ish with the option of more,,,, the cars is just a toy for when i go to the ring,, but i wanna do some tracks and motorways are a main thing i like the car for too for high speed cruising,,,, aint bothered too much about lag aslong as it pulls strong

id like it to feel like my T34 27.5psi holding cossie i used to have as that was PERFECT for me

 

because its the weapon of choice for people "in the know"...these are still commanding £1000+ second hand !!!

 

again why? not because its the weapon of choice, question is why? dead simple, for the people not in the "know"

 

perhaps the tuner that supplies them should explain why they are the best? not the punters, as long as they have compared them to other turbos.

 

lol would that be because the mapper works for a garage that dosnt stock them

 

well for starters they are the quickest spooling turbo for that power range, in the stock position , making around 400 in the ej20,the MD321T will make around 450-460 on a ej257 depending on spec , you just need to drive a car with one in its , dont take my word for its , ask the mappers , Bob Rawle, Simon (jollygreenmonster), AndyF, Pat etc etc

 

APS sr40 ...is a very good turbo well made , but the MD turbos are just that quicker to spool and make genuine 400bhp !!!

Anger....what yr one making now

 

dont know, not my mapper either

 

Just shy of 400 bhp mate at Surrey RR, but has been mapped again since on a Simtec and is feeling alot better

 

....what the simtec like to live with , any problems with idling in heavy traffic etc etc ??

 

Still having a little problem with cold start and thats about it so far as i drove to Simons for the mapping, but hes gonna pop up and sort that out, other wise im very happy with it

 

dont mean to be pain in the ***, but how do you know they spool better than the rcm gt35vfturbo on a 18 housing or a 20 housing? ones doing 440bhp others doing 480 pilus and thats 500 wilh vpower and nf, both done by brd, if the mds are better then i will have one on my car but i dont want to waste 1500 quid for same results.

 

This may help with what you pick.

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.

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. This turbo is considered optimal in applications with range from mild to slightly wild. It does not have the same top end power of the VF22, but spools up significantly quicker.

VF24
This turbo shares its compressor housing with the VF23 however, this housing is mated with a smaller (P18) exhaust side. The smaller characteristics of this turbo allow it to provide ample bottom end power and quick spool. This turbo is very popular for Imprezas with automatic transmissions and Group N rally cars.

VF28
This turbo came standard on the STi Version 5. In terms of overall size, it is smaller than the VF22, VF30 and VF34, and about same size as the VF23.

VF29
This Turbo is nearly identical to the VF24, with the same compressor and exhaust housings. However the compressor wheel in the VF29 is has been changed slightly. The changes made to the compressor wheel in this model are generally viewed as improvements, and as such this unit is typically chosen over the VF24.

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 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 supremacy 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.

VF35
The VF35 has identical internals as the VF30 and it uses divided thrust bearings. However, the exhaust housing is a P15 which means this turbo will have fantastic spool characteristics. This turbo is standard on the new WRX Type RA. LIMITED SUPPLY.

VF36
Roller bearing version of the twin scroll VF37, also has a titanium turbine and shaft for even quicker spool. Same compressor housing as VF30/34, however twin scroll P25 exhaust housing provides slightly better top end output due to reduced exhaust pulse interference. This turbo is good for 400HP and used on JDM STI Spec C from 2003 onwards.

VF37 (thrust bearing)
Enter the age of twin scroll IHI turbos. Same compressor housing as VF30/34, however has a new twin scroll P25 exhaust housing that provides slightly better top end output due to reduced exhaust pulse interference. Twin scroll also provides better spool up for improved low down response over the VF30/34. This turbo is good for 400HP and used on JDM STI from 2003 onwards.

VF38
Twin scroll turbo with titanium turbine and shaft. Smaller compressor housing than VF36/VF37 provides tremendous spool up capabilities but less top end than VF36/37. The spool capabilities of this turbo are demonstrated on the JDM Legacy GT, which reaches peak torque at 2400RPM. View My Scoob

VF39
Single scroll turbo used on USDM STI and latest 2.5L STIs released internationally. Smaller than VF30/VF34.

VF42
Exclusive turbo to the S203/S204 models, this features a twin scroll design with a slightly larger compressor than the VF36/37 turbos and different turbine design (more blades). The VF42 is a roller-bearing turbo and is likely of similar size to the VF22 turbo, but with twin scroll exhaust housing for faster spool and superior top end performance due to reduced exhaust pulse interference.

PE 1818 The 1818 supposedly comes on boost extremely fast...which make it great for road racing or aggressive driving (remember to be responsible :^). The 1818 maxes out somewhere between 350-375 hp.

PE 1820 The 1820 is larger than the 1818 and is capable of running more boost, but at the expense of more turbo lag. Expect it not attain full boost until you have passed 4000 rpm. However, it can be tuned to 400+ hp.



IHI & Garret Turbo Specs
Model Type Compressor Inlet Diameter Compressor Housing Nominal Turbine Housing Turbine Approx A/R Compressor Wheel Blades Turbine Wheel Blades Waste Gate Actuator Turbine Casting ID & Batch
VF22 Roller Bearing 48.5 A 9.4 PZ20-H 94001 0.71 5 11 C395 H, H4
VF 23 Roller Bearing 46.7 B 9.4 PZ20-H 94001 0.71 6 11 C395 8psi TBA
VF 24 Roller Bearing 46.7 B 9.4 PZ18-H 94001 0.63 6 11 C418 8psi H, S4, 66
VF 30 Bronze Bearing 47.9 C 9.4 PZ18-H 94001 0.63 6 11 C484 H, S4, IC F55
VF 34 Roller Bearing

Garrett 400 Ball Bearing 53 - - Outlet Dia 51.5 - 7 9 11 psi
Garrett 450-500 Ball Bearing 53 Outlet Dia 46.9 - 7 10 14 psi




Turbo Type ----------- Approx flow @ pressure
Stock Turbo ---------- 360 CFM at 14.7 PSI
IHI VF 25 ------------- 370 CFM at 14.7 PSI
IHI VF 26 ------------- 390 CFM at 14.7 PSI
T3 60 trim ----------- 400 CFM at 14.7 PSI
IHI VF 27 ------------- 400 CFM at 14.7 PSI
IHI VF 24/28/29 ----- 410 CFM at 14.7 PSI
========= 422 CFM max flow for a 2 Liter at .85 VE pressure ratio 2.0 (14.7 PSI) 7000 RPM =======
IHI VF 23 ------------- 423 CFM at 14.7 PSI
FP STOCK HYBRID -- 430 CFM at 14.7 PSI
IHI VF-30 ------------- 435 CFM at 14.7 PSI
SR 30 ----------------- 435 CFM at 14.7 PSI
IHI VF-22 ------------ 440 CFM at 14.7 PSI
T04E 40 trim -------- 460 CFM at 14.7 PSI
========= 464 CFM max flow for a 2.2 Liter at .85 VE pressure ratio 2.0 (14.7 PSI) 7000 rpm =======
PE1818 -------------- 490 CFM at 14.7 PSI
Small 16G ------------ 505 CFM at 14.7 PSI
ION Spec (stg 0) --- 525 CFM at 14.7 PSI
========= 526 CFM max flow for a 2.5 Liter at .85 VE pressure ratio 2.0 (14.7 PSI) 7000 RPM =======
Large 16G ----------- 550 CFM at 14.7 PSI
SR 40 ----------------- 595 CFM at 14.7 PSI
18G ------------------- 600 CFM at 14.7 PSI
PE 1820 -------------- 630 CFM at 14.7 PSI
20G ------------------ 650 CFM at 14.7 PSI
SR 50 ---------------- 710 CFM at 14.7 PSI
GT-30 ---------------- 725 CFM at 14.7 PSI
60-1 ----------------- 725 CFM at 14.7 PSI
GT-35R -------------- 820 CFM at 14.7 PSI
T72 ------------------ 920 CFM at 14.7 PSI <--- Note you would have to spin a 2.0 L engine at about 14,000 rpm to flow this much air.
IHI VF 25 ----------- 395 CFM at 18 PSI
IHI VF 26 ----------- 400 CFM at 18 PSI
T3 60 trim ---------- 410 CFM at 20 PSI
IHI VF 27 ----------- 420 CFM at 18 PSI
IHI VF 24/28/29 -- 425 CFM at 18 PSI
IHI VF 23 ----------- 430 CFM at 18 PSI
IHI VF-30 ----------- 460 CFM at 18.0 PSI
AVO 320HP -------- 465 CFM at 17.5 PSI
T04E 40 trim ------ 465 CFM at 22 PSI
FP STOCK HYBRID- 490 CFM at 18.0 PSI
IHI VF-22 ---------- 490 CFM at 18.0 PSI
SR 30 --------------- 490 CFM at 22 PSI
Small 16G ---------- 490 CFM at 22 PSI
ION Spec (stg 0) - 500 CFM at 19 PSI
PE1818 ------------ 515 CFM at 22 PSI
Large 16G --------- 520 CFM at 22 PSI
========= 526 CFM max flow for a 2 Liter at .85 VE pressure ratio 2.5 (22 PSI) 7000 rpm =======
========= 578 CFM max flow for a 2.2 Liter at .85 VE pressure ratio 2.5 (22 PSI) 7000 rpm =======
HKS GT2835 ------- 580 CFM at 22 PSI 400 hp
MRT 400 ------------ 580 CFM at 16 PSI
AVO 400HP -------- 580 CFM at 17.5 PSI
MRT 450 ------------ 650 CFM at 19 PSI
AVO 450HP -------- 650 CFM at 20.0 PSI
SR 40 ---------------- 650 CFM at 22 PSI
========= 658 CFM max flow for a 2.5 Liter at .85 VE pressure ratio 2.5 (22 PSI) 7000 rpm =======
HKS GT3037 ------ 670 CFM at 22 PSI 460 hp
PE 1820 ----------- 680 CFM at 22 PSI
20G ---------------- 695 CFM at 20.0 PSI
HKS GT3040 ----- 710 CFM at 22 PSI 490 hp
AVO 500HP ------ 770 CFM at 22 PSI
SR 50 ------------- 770 CFM at 22 PSI
GT-30 ------------- 790 CFM at 22 PSI
60-1 --------------- 800 CFM at 22 PSI
HKS GT3240 ----- 830 CFM at 22 PSI 570 hp
GT-35R ----------- 880 CFM at 22 PSI
T72 --------------- 1000 CFM at 22 PSI <--- note you would have to run a 2.0 L engine at >40 PSI boost to flow this much air
Conversions used where there was control over conversion factors:
1 HP approx equals 1.45 CFM
1 CFM approx equals 0.0745 lb of air/min
0.108 Lb/min approx equals 1 hp
1 Meter cubed/sec = 35.314 CFS = 2118.867 CFM
1 KG/sec = 132 lbs/min approx equals 1771.812 CFM
power coversions:
1 PS = 0.9859 HP = 75 Kgf m/sec
1.3405 HP = 1 KW
1 HP = 746 watts

 

Thats right its all in the mapping and how the AVCR is set up

 

man that is some info :

 

When the hell are they going to get this website up and running????
Its been like this for bloody ages now. Oi ! Lateral, sort it!!

Sweet write up on turbos dude

 

:11
Ginge !

at the monent its standard, im just building a list og things i need, its a V3 sti with a mines ecu,,,, not sure what else its got yet though

if the H/Gasket has gone then im gonna do engine freshen up at the same time and then look at cams too

for the monent though i just want a list for around 350ish with the option of more,,,, the cars is just a toy for when i go to the ring,, but i wanna do some tracks and motorways are a main thing i like the car for too for high speed cruising,,,, aint bothered too much about lag aslong as it pulls strong

id like it to feel like my T34 27.5psi holding cossie i used to have as that was PERFECT for me


a v3 scoobie internals can take 350 to 400 depending on the history of the car besides a well sorted scooby runing 350 should see off most cossies up2 500 on THE ROAD.IM SURE THERES MEMBERS ON OUR ONLY RUNING 330-350 WHO DESTROY COSSIES AND m3.IF YOU WANT A GREAT TURBO FOR THE ROAD and a bit of track GO FOR TDO5 16g that way ur not pushing your internal and gearbox to the limits. with a good supporting mods and a good mapper u should see the rite side of 350bhp. oh and the 16g is quite well priced.