Peewee
New Member
I'm *fairly* sure that the local Ford ones go in the wrong direction.
Not 100% sure, but it rings a bell.
DunnoYeah but which one Peewee?
Call them up and give them the specs
What T/B size on Intercooled HTV1900 1UZ
- Thread starter fugly
- Start date
The 1UZFE EGR Delete Kit is available for sale here.
Not 100% sure, but it rings a bell.
Call them up and give them the specs
True Cobber but remember the turbo inlet is effectively the same as a throttle inlet ie drawing from air at atm. My TT setup ran an easy 400rwkw thru x2 50mm turbo inlets. So, a twin throttle with x2 50mm throttle plates should flow similar. That's not to say a bigger throttle setup won't flow better thru reduced restrictions but will come at the trade off of drivability.
I'll be trying the x2 57mm SVT throttle but interested to see what your large flow x-section will produce in terms of gains and twitchy throttle response (if it does?).
Yeah i agree for 4 litres the twin one the rest of us are using should be plenty.....i'm a sucker for actually trying shit though so if one comes up cheap i'll give it a crack
Would love to know some specs/details on that Bimmer as seems a bit too good to be true?
Not 100% sure, but it rings a bell.
Call them up and give them the specs
Here is some side by side comparisons of different throttle body designs and indicative flow rates. The 70mm single butterfly throttle body that would be similar to the std 1uzfe is rated around 629 cfm and would be a restriction on a TVS 1900 with a 75mm pulley anything beyond 5,000 engine rpm. In reality this is not an issue as I have changed gear by then anyway. But. This has been bugging me for quite some time now and have been wondering how much of a difference a bigger throttle body would make. Don't get me wrong the current set up goes like s#it off a hot greased shovel but being an engineer the numbers just don't add up and causes me lack of sleep.....
That and the fact I want to inhale the cold air from the bonnet scoop has led me to start re designing the intake manifold.
The 4bbl set up will be more progressive down low and also give me the look I want.
http://www.edelbrock.com/automotive_new/misc/company/10pdf/161-163.pdf
rpm x drive ratio x supercharger displacement will give you the air volume required.
That and the fact I want to inhale the cold air from the bonnet scoop has led me to start re designing the intake manifold.
The 4bbl set up will be more progressive down low and also give me the look I want.
http://www.edelbrock.com/automotive_new/misc/company/10pdf/161-163.pdf
rpm x drive ratio x supercharger displacement will give you the air volume required.
JustenGT8
New Member
True Cobber but remember the turbo inlet is effectively the same as a throttle inlet ie drawing from air at atm. My TT setup ran an easy 400rwkw thru x2 50mm turbo inlets. So, a twin throttle with x2 50mm throttle plates should flow similar. That's not to say a bigger throttle setup won't flow better thru reduced restrictions but will come at the trade off of drivability.
I'll be trying the x2 57mm SVT throttle but interested to see what your large flow x-section will produce in terms of gains and twitchy throttle response (if it does?).
I honestly don't think you both will have any problems at all, like I said the 70mm std throttle body scares the poo out of me running about 11 psi. it's only when you do the maths and work out the air requirement that it starts to suck up the top end a bit. I'm not expecting to gain a big lick of power but I do think there will be a drop at the top rpm (which I just about never use anyway). It's the cold air I'm after and a different look.
A GM 6lt runs a 90mm throttle body, so a 1uz 4 lt with 7 psi of boost can also easily cope with a 90mm throttle body as well. Just think of a NA multi throttle body setup and add up the surface area of each throttle body and see what you get.
It is easy to make the throttle linkage more progressive with an off set round or an elliptical cable pull on the throttle body. There is no need for it to be twitchy, maybe even adjust the cable pull ratio on the pedal end too if you like too. I do like the look of the throttle body you have Andrew (Peewee) and it will be a good fit straight on the inlet of the supercharger.
The 4bbl set up I am looking to use (4 x 44.5mm) the second set of butterfly's only start to open at 30% throttle making it more progressive down low.
A GM 6lt runs a 90mm throttle body, so a 1uz 4 lt with 7 psi of boost can also easily cope with a 90mm throttle body as well. Just think of a NA multi throttle body setup and add up the surface area of each throttle body and see what you get.
It is easy to make the throttle linkage more progressive with an off set round or an elliptical cable pull on the throttle body. There is no need for it to be twitchy, maybe even adjust the cable pull ratio on the pedal end too if you like too. I do like the look of the throttle body you have Andrew (Peewee) and it will be a good fit straight on the inlet of the supercharger.
The 4bbl set up I am looking to use (4 x 44.5mm) the second set of butterfly's only start to open at 30% throttle making it more progressive down low.
fugly
New Member
I spoke to Harrop the other day & yes they do do a HTV1900 to LS1 T/B adaptor in straight but yeh they still haven't sent me the pics.
They also mentioned a company, Auto Techniques 03 97631195, is in the process of developing a twin T/B that will be a direct bolt on on the HTV1900, so i rang them spoke to Scott, he suggested they will be ready in about 3 weeks, he couldn't give me any other info at this stage.
They also mentioned a company, Auto Techniques 03 97631195, is in the process of developing a twin T/B that will be a direct bolt on on the HTV1900, so i rang them spoke to Scott, he suggested they will be ready in about 3 weeks, he couldn't give me any other info at this stage.
That does look nice Andrew, don't forget you will need ports for vacuum for your brakes, PCV, idle control valve and the supercharger bypass valve pick up to be in that manifold as well so maybe put some flats on the sides so it can be drilled and taped for fittings. Are you going to get them cast or billet machined?
Counter boring the the holes that bolt onto the supercharger looks a bit difficult too? I do like it a lot though and could be interested in one.
Counter boring the the holes that bolt onto the supercharger looks a bit difficult too? I do like it a lot though and could be interested in one.
tom steele
New Member
isn't the stock 98-2005 vvti throttle body already a 80 mm any sugestions for this?
Craig made 370rwkw on a std throttle body with WM injection. Kind of blows the theory bigger is better.
http://www.youtube.com/user/ch0290#p/a/u/0/V4YWlrsDtEc
http://www.youtube.com/user/ch0290#p/a/u/0/V4YWlrsDtEc
JustenGT8
New Member
Yeah i agree for 4 litres the twin one the rest of us are using should be plenty.....i'm a sucker for actually trying shit though so if one comes up cheap i'll give it a crack
Would love to know some specs/details on that Bimmer as seems a bit too good to be true?
I dropped Craig a message on youtube and he is running a 70mm pulley (13psi) and a Lextreme 800hp kit.
http://www.youtube.com/watch?v=V4YWlrsDtEc
@cobber427 Thanks for your comments.
I have put an 800hp engine kit in, this was from Lextreme in the US.
Forged Ross pistons Eagle rods, heads ported new cams stage 2 heavy duty springs.
Not sure what you mean WI nozzle?
I am running a 70mm wheel 13psi
Thanks Craig...........
http://www.youtube.com/watch?v=V4YWlrsDtEc
@cobber427 Thanks for your comments.
I have put an 800hp engine kit in, this was from Lextreme in the US.
Forged Ross pistons Eagle rods, heads ported new cams stage 2 heavy duty springs.
Not sure what you mean WI nozzle?
I am running a 70mm wheel 13psi
Thanks Craig...........
Mix ratio is also in the post, I saw the water come back up through the throttle body too but it could also be spat back thought the bypass valve as well when coming off boost.
Going to order a 70mm pulley next week and start researching pumps and nozzles, this looks like fun.
@077bik
Hi, yes I did get more power. It was about 72kws.
I have a part 1 video that shows 297.4kws, and after not being happy with that I added the water methanol, and got the 370kws.
The water meth bottle is 3.5lts we started with a 50/50 mix and got 348.1kws.
Then I changed the mix to 2 to 1 so its now 2 lts of methanol to 1 lt of water.
That gave me 370rwkw's = 496.4 horse power at the rear,s very exiting to drive.
Going to order a 70mm pulley next week and start researching pumps and nozzles, this looks like fun.
@077bik
Hi, yes I did get more power. It was about 72kws.
I have a part 1 video that shows 297.4kws, and after not being happy with that I added the water methanol, and got the 370kws.
The water meth bottle is 3.5lts we started with a 50/50 mix and got 348.1kws.
Then I changed the mix to 2 to 1 so its now 2 lts of methanol to 1 lt of water.
That gave me 370rwkw's = 496.4 horse power at the rear,s very exiting to drive.
