STATUS

i only asked as a 10 times better solution is a Infinity throttle body, as the tps is a wire in affair and has niceties such as temperature controlled throttle plate (cold start extra opening etc) etc and they are cheap too.

with multiple melt downs, but i think they found the culprit. Pretty sure Trent Wytes 3litre is the only one to be proven reliable in competitive drift events.

or creatd or jpc or mpc or us or RE customs, i think everyone has

post a graph, ive had rb25's with soft valve springs plateau the power graph.....

Here are the images, the far right bolt hole is slotted all the way.

the last on i did was cats car a few weeks back, the rear most hole i slotted it all the way (make install easier) and the others i slotted about 5mm and milled the flat for the bolt head) i will take a pic in a minute.

we just machine the 3 bolt holes (slotted) and move the pump forward.

Ahh i always leave the rail in place, when changing injectors, save alot of time (we do round 3 sets a week).

ahh cool, dont get me wrong i reckon the ts 3071 is a good road to travel down if your willing to use a full race manifold etc. I have never done it, and i consider 3500 for the kit to be quite cheap but it is hard to justify to a customer a turbo gate and manifold (if prostreet manifold 2400 alone) setup, especially as most SR customers have the shitty 2871R cemented in their minds as the be all end all..

as i said previous im sure it is nothing to do with the pfc, the car will hardly notice the 440 (480cc) injectors. I drove my old car round for a week on 440cc (yes its rich but not enough to make it splutter) One other thing how long did it run for? it will take a few minutes to clear out the cylinders from all the extra fuel dumped in the cylinders when the injectors were removed....

why fit a xf tb in the first place?

Yeah i should have been a bit clearer, ramp rate on that particular setup. the smaller stuff i can have no questions. It's truly fantastic if it realizes that sort of response on a comparable ramp

Wild.... http://www.youtube.com/watch?v=NNK6qVX-6AI...player_embedded

its all in the ramp rate, i would like to know the ramp rate for a car to make that sort of number.

Nice avatar, love to hear that thing PS we have bought some stuff off Tufrx3 and it has all been spot on as were the proengines gear. Reps for both.

please heed R31Nismoids advice..... dont do it, pointless beyond belief.

Int gate SS gt3071 and gt2871 @ 20-21psi on 2l sr20 both big lift 264's. GT2871R would not reliably make any more power even at more boost. GT30171 was a new engine so customer had specified a limit of 20psi, no doubt at 22-24 psi is would have made more torque and cracked 315-odd rwkw.

sounds like the vacuum warning going off. turn it off or set it to 15 psi.

True, but if room wasn't an issue a properly built manifold wont have an issue, the housing is a quick easy job whereas making a manifold with enough room between collector and turbo flange to accept the correct size and angled (proper angle should follow exhaust flow not be a right angle) wastegate exit pipe is a far harder job. all the Decent jap ones ive seen (at signal) with T88's and T51's tend to have either two feeds into the one gate pipe or a large exit pipe that comes out nearly vertical and then does a 180 back down to the gate. This is a dodgy paint version of one of the fixes, this pic does not show the correct exit radius (looks like a 90 but its more like 60 when done correct) but it gives the general idea. In the origin pic you can see the gas need to pull more than a 90 degree turn to exit the gate pipe, we oval the hole and take a large radius 90 (bigger diameter) and angle cut the manifold end and merge it (final gate position depends on the setup) that way we increase the volume but reduce the exit angle (reduce it by half) from the merge. On one setup for a mate we actually ran double gate exit points merged to a single gate but it was ALOT of work and not feasible to do as a charge out job.

BOV is most likely shagged. which one is it? if it is the old style one (one mounted to pipe in pic) bin it as they are all 15-20 years old. I have NEVER found a good one of the early types.

Ikeya formula goodness.... if only i could afford one.

the T300 is a bit how-you-going when compared to the later stuff, i did a few t300 ca18's years ago and they definitely needed a fair peddle to get going The 312rwkw l2 i posted the graphs for ran 264 inlet and 272 exhuast

TOTALLY different, the twin scroll manifolds have a gate for only 3 cylinders each so they can get away with it. the Full Race item has twice the gate flow as a single the popular xyz branded manifold. Unfortunately i don't have any pics of the modded manifolds but it is a fair amount of work to make them hold boost (the easiest was to enlarge the hole and run an oval gate take off point) .

make sure the o-rings are NOT nicked, if so it will run like shit. An r33 should just about run fine (rich but not miss) with s15 injectors bolted in place of the original 370cc items

i'll chasse some 3071 sheets too.