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Integrator
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Discussion Starter #481 (Edited)
Changing to the electric high volume/hi pressure pump lowers charge cooler temperature. Avoid Bosch xxx 002 weak pump. On this diagram, Bosch 392022010 is the first acceptable pump, all below = junk.
Chargecooler resistance dotted line determines where your pump would like to work.

Be sure to double insulate at least the bottom and side of the exchanger with layer of Thermo-Tec insulation and Nimbus GII hard shield, sold by Merlin Motorsports or DemonTweeks.
 

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Integrator
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Discussion Starter #482 (Edited)
All who have a large 3" OD exhaust with 6" dia round Langford resonator, don't have to "improve" anything!
I have inserted an endoscope to inspect the guts of the system and discovered that the resonator (not muffler!), is a 3" trough-and- trough part with perforated inner tube, no baffles. It looks very similar as an inside of the Magnaflow resonator. I don't know if it is a fiberglass or steel wool media.
Nothing to improve here, except weight, perhaps.

All later 90+ MY had an oval muffler, 33 lbs anchor.


FYI: how to overcome a drone
Here are links to the best threads I found:
https://www.hotrodders.com/forum/i-did-eliminated-2000-rpm-exhaust-drone-154608.html

and
https://www.rodauthority.com/tech-stories/exhaust/understanding-muffler-design-and-sound-absorption-strategies/

https://www.performancetrucks.net/forums/gm-engine-exhaust-performance-21/how-build-exhaust-resonator-tube-eliminate-drone-489463/
 

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Integrator
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I found out that no matter what the outside of the blanket is made of, the inner side burns out fast if it has only stainless mesh and bare fiberglass.

I found a much better Lava Titanium blanket (olive green inside and outside), which has a silica fiber on the inside.
So far-so good, it keeps the compartment temperatures reasonably moderate.

Search on eBay for: 1320 T3 Titanium Turbo Blanket Heat Shield Barrier Turbocharger Cover Lava
So I guess this $19 version is the one that burned out really quickly?


https://www.ebay.com/itm/Universal-T3-Titanium-Turbo-Blanket-Heat-Shield-Barrier-Turbo-charger-Cover-Wrap/183427740306?epid=25014422482&hash=item2ab5253292
 

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Integrator
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2,682 Posts
Discussion Starter #487 (Edited)
Why The Comp Turbo R-Line compressor wheels outperforms

Just FYI:

They certainly have a great products!
I heard, that the customer service is slow, but their innovative technology is worth the wait.

12/11/2018 Comp Turbo Technology is proud to announce the availability of the new CT-R line of compressor wheels. The new R line has proven increases in hp output by up to 15% . The R line compressor is 7-14 vaned and features a thin slim hub to maximize airflow and extended tip technology for increased efficiency at higher pressure ratios. The R line compressor technology was designed with larger exducer diameters which will increase hp output at higher engine speeds. The complete R line compressor technology is now available on our complete line of CT turbochargers. Please visit us at compturbo.com and or contact us at [email protected] for further information regarding the new R line.

https://www.compturbotechnology.com/turbocharger-line


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Dreaded Prior Owner
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Having that color blindness thing again? British Racing Green :UK:

Also I would not call it a "rocket", (or race it against my Subaru). I went with the EFR turbo as it looked to be the best option for responsiveness, and I wanted to convert to an internal wastegate to add lightness and simplicity. I'm not willing to bet my transaxle against rocket-like levels of boost.

Gimme a Audi or Boxster transaxle and the laptop could probably throw on another 75 hp....
 

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Dreaded Prior Owner
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Have you made any improvements to your tranny? At least Quaife and/or my reverse cut CWP said:
I put in the Quaiffe with new carrier bearings, added a magnet to the drain plug, replaced the circlip, added the big crank pilot bearing, rebushed the linkage, and gave you a Paypal deposit on your CWP project!

Bollide is a bit too close to the truth, as the last head gasket failure gave a hot fart that ignited some roadside grass! My wife therefore prefers Dragon.
 

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Integrator
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Discussion Starter #495 (Edited)
When replacing any component of the clutch actuation circuit, the system has to be bled.
Very effective and time saving method is to install a Speed Bleeder (post #23), http://www.speedbleeder.com/, and bleed the slave cylinder "back side up". It is a "one man operation".
If 0.70" dia MC is replaced with 5/8" dia cylinder, then the push rod has to be made longer at the pedal clevis.

BEWARE: DO NOT use 5/8" dia MC without checking specs carefully.

Some 5/8"-ers do not have enough stroke to fully disengage the clutch (working w/standard OE 7/8" SC). They have only 1.25" stroke and 0.39" volume.

0.70" dia Wilwood PN# 260-6579 has a proper 1.4" stroke and 0.53" volume!

Drove the car this week end and can confirm that this MC works fabulously.
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Integrator
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Discussion Starter #496
When you have your crank out for any reason, get this simple, but effective modification implemented.
Esprit 4 cyl engines are plagued by low pressure at the con-rod big end shells. In extreme cases #1 and/or #4 bearings fail.
Grinding a simple tear drop-shape chamfer at the main bearing groove oiling hole increases amount of oil "scooped up" into the crank cross-drilled channel.
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