Attempt To Run Nines(eventually)

[mic]

lookin good man !! glad to see progress and pics asap !!

[MYWPN]

MYWPN....it probably has to do with the pressure ratio. These turbo's are not very efficient at low pressure ratio's......compared to high pressure ratio's commonly used in small displacement engines.

Dalts in regards to your comment about boost coming on as quick as factory.....I find that hard to believe. I mean no disrespect and I hope you can appreciate my reasoning from a technical point of view. The 6262 for example is said to be comparable to the stock BA/BF turbs as it has a 62mm compressor inducer (82mm exducer) and a 72mm exhaust turbine inducer (62mm exducer). The Garrett GT3582r has a 61.4mm compressor inducer (82mm exducer) with a 68mm exhaust turbine inducer. Given the Garrett exhaust turbine specs you would think that the Garrett would spool slightly quicker.......however turbine design might prove otherwise. With the bigger exhaust inducer you would probably need to machine the ford turbine housing to make it fit in the stock location if retaining the stock manifold.

Now the 6466 has bigger turbine all round....hence why I'm surprised it spools faster. Im curious if you were able to squeeze an exhasut inducer of that size into a highly machined ford exhaust housing, or have you fitted an aftermarket manifold which would help bring back some spool of a biggers turbs? The 6466 would ultimately have MUCH higher air delivery at at higher rpm and would certainly be fun with a stall and powerglide....but I'd be very surprised if you could deliver 40psi worth close to the redline in a ford I6.

Anyway, not having a dig just trying to look at it would a tech point :-) Keep us informed as the 6466 is relatively new over here like you said. Cheers.

its do with the amount of exhaust gas pushed through and apparenty quicker air speed.

funny enough dion tuned a gtx4202 on a xr andhe said it really dd nearly spool up as quick as factory. I will have a dyno graph with it to show results. unless the turbo place is happyto swap exhaust hoousings mine isstill un-used

[IH8TOADS]

Yeah a split pulse design goes a long way apparently. XYZ's car is alao a good example of decent spool with a large framed turbs.

[MYWPN]

There def the new craze ATM. I had done zero research before choosing this turbo. Prob should have. Lol. I purchased a too small of an exhaust housing and I changed my plans mid flight to go alot further than I ever thought so maybe a bigger turbo could have been in order. Oh well

Dalts when do u expect to get this to the strip? Are u building a new engine or using existing

[dalts]

I'm just waiting on the engine to get back from the machiners and then we,ll bolt it together!! It's taking a little longer than expected but hopefully it will be back together in the next mth or so!

Im using wisco pistons which are made to suit nitrous and running all the other usual gear.

Head is getting a tidy up with stainless valves not worrying to much on the porting,also throwing some atomic 4plus cams with vernier cam gears so it should sound the business!

Cheers lee