454 ci Big Block Chevy turbo question.

[ihatesissycars]

Hi all, a question on behalf a friend.

He has a 454ci bbc in his pro street capri and wants to turbocharge the thing at some point but like many is not made of money. He can take care of ALL the fabbing required to mount the units but the question is what units to use, would a couple of those holsett truck thingumies do the job?

Any other suggestions?

[IainB]

2 T70's should do the trick
Point him over to http://www.turbomustangs.com/smf/ loads of info over there

[Eliot]

2 T70's should do the trick
Point him over to http://www.turbomustangs.com/smf/ loads of info over there

yep turbo mustangs is the place. Do a search first if you dont want to get shot down in flames...

[ihatesissycars]

Thanks guys i'll give them a go!

Whilst i have you attention though in your opinion do you think we're onto something possible with the holsets though?

[IainB]

Thanks guys i'll give them a go!

Whilst i have you attention though in your opinion do you think we're onto something possible with the holsets though?

Anymore details on the holsets, size, A/R ratio etc? (christ I half sound like I know what im talking about!!)

Oooh and for turbomustangs, search, search and search - then ask they know there stuff but dont take prisoners!! Frosty (Redvictor is over there as well, so its not all US based people!)

[Eliot]

Thanks guys i'll give them a go!

Whilst i have you attention though in your opinion do you think we're onto something possible with the holsets though?

Anymore details on the holsets, size, A/R ratio etc? (christ I half sound like I know what im talking about!!)

Oooh and for turbomustangs, search, search and search - then ask they know there stuff but dont take prisoners!! Frosty (Redvictor is over there as well, so its not all US based people!)

There are several uk people on there, myself included.

So throw us a bone then;
so what are your power goals, what compression, what boost and which holsets are you talking about?
Othwise we may have to get all flamey...

[IainB]

would a couple of those holsett truck thingumies do the job?

Gav,
Any idea where hes sourcing the holsett's? Have you got any more details please?
Cheers

[stevieturbo]

Perhaps Jukka or some of the other Scandanavian guys can comment on the Holset stuff.
They seem to use them in that part of the world more than others.

Some info...not too much on power etc.

http://www.proturbo.fi/index_en.htm

[ihatesissycars]

Well, this is where i'm going to look completely noobie but i think i could do with someone else telling me which of the many holsett's would best suit his requirements. The hx35's seem to crop up alot so would they be good?

His engine in n/a form is making 440hp at the wheels which seems lame to me but he's pretty chuffed with it but i would think he's got the strength to break 100 bhp so what two holset's would be capable of that?

[stevieturbo]

If this is anything to go by, and its a little tricky to tell..

The HX35 is a baby turbo.

http://www.turbomustangs.com/turbotech/ ... orange.jpg

http://www.holset.co.uk/files/2_1_1_3-Holset%20HX35.php

In all honesty, a cheap big single turbo would be the way to go here.

A decent T76 which would spool fast on an engine that size, and be capable of an easy 700+ ( a very easy 700+ ) would cost around $1200-1300 or so, which at current exchange rates, really is buttons.
http://www.racetep.com/tnetic.html

If there is one area worth spending money on with a turbocharged build, it IS on the turbocharger itself.

[RobertE]

Most people around here with Chevy's of that size run 76mm's or 88mm's

Here are some pics of a Challenger w/ a 500 Stroker and GT-47(88mm) turbo... the power is amazing at 10.5 #'s of boost.





Specifications:

Block: Factory Chrysler RB 440
Crankshaft: Eagle 4.15
Rods: Eagle H Beam
Pistons: Ross
Compression: 9.2
Heads: Edelbrock Performer RPM 88cc
Intake: Edelbrock Performer RPM
Cam: Comp solid roller
224/230 @.050, .577/.590, 114 LSA
Throttle Body: Accufab 80mm
Turbo: Garrett GT47-88, .96 A/R
Wastegate: HKS GT-II 60mm
Boost: 10.5 PSI
Exhaust: 5-inch downpipe, dual 3-inch, Magnaflows

Rear Wheel Dyno Numbers:

RPM RWHP RWTQ PSI MPH SEC
---- ------ ------ ---- ----- ----
1893 133.5 370.3 0.0 43.5 0.2
1951 143.8 387.0 0.1 44.5 0.3
2010 159.0 415.5 0.2 45.8 0.4
2063 170.4 433.7 0.3 46.9 0.5
2121 179.9 445.4 0.3 48.1 0.6
2175 187.9 453.8 0.4 49.2 0.7
2227 194.3 458.3 0.4 50.4 0.8
2279 202.0 465.6 0.5 51.6 0.9
2326 209.3 472.5 0.6 52.8 1.0
2382 216.4 477.1 0.7 54.0 1.1
2447 223.6 479.9 0.9 55.2 1.2
2500 232.7 488.9 1.0 56.6 1.3
2560 240.9 494.3 1.2 57.9 1.4
2620 250.0 501.1 1.3 59.3 1.5
2684 259.8 508.3 1.5 60.6 1.6
2742 272.8 522.4 1.9 61.9 1.7
2794 285.4 536.5 2.2 63.5 1.8
2881 298.5 544.2 2.5 65.0 1.9
2958 316.5 562.0 2.8 66.7 2.0
3027 332.0 576.0 3.3 68.2 2.1
3103 353.9 598.9 3.7 69.9 2.2
3186 378.7 624.2 4.1 71.7 2.3
3272 398.8 640.2 4.8 73.4 2.4
3359 425.7 665.6 5.3 75.4 2.5
3445 454.0 692.1 5.9 77.4 2.6
3538 482.5 716.2 6.5 79.3 2.7
3647 514.0 740.2 6.9 81.4 2.8
3751 547.5 766.6 7.4 83.6 2.9
3847 587.7 802.3 8.0 85.6 3.0
3946 618.8 823.8 8.3 87.8 3.1
4068 644.8 832.4 8.4 89.9 3.2
4166 668.5 842.7 8.6 92.2 3.3
4247 692.8 856.7 8.9 94.5 3.4
4339 720.2 871.6 9.1 96.7 3.5
4461 737.7 868.5 9.4 98.7 3.6
4545 751.4 868.4 9.6 101.0 3.7
4615 760.4 865.4 9.8 103.2 3.8
4725 765.0 850.2 9.9 105.2 3.9
4812 770.4 840.9 9.9 107.4 4.0
4914 779.5 833.1 10.1 109.5 4.1
4969 790.4 835.4 10.3 111.6 4.2
5046 798.4 830.9 10.5 113.5 4.3
5140 806.8 824.4 10.5 115.5 4.4
5239 814.0 816.1 10.5 117.5 4.5
5326 817.8 806.4 10.5 119.4 4.6
5411 825.4 801.1 10.5 121.4 4.7
5498 830.7 793.6 10.5 123.3 4.8
5585 835.4 785.6 10.5 125.2 4.9
5651 838.5 779.3 10.5 127.2 5.0
5716 838.8 770.7 10.5 128.9 5.1
5827 837.9 755.2 10.5 130.8 5.2
5858 833.6 747.4 10.5 132.6 5.3
5597 790.5 741.7 10.5 133.0 5.3


**Sorry for making such a long post.. thought you might interested though.

[chodjinn]

DAMN!!!