Reinforced valve spring kit Toyota 3S-GTE

€688.08 (tax incl.)

Kits of 16 reinforced valve springs for the Toyota 3S-GTE engine.

Brand: SUPERTECH
Engines: 3S-GTE 2.0 turbo (Celica GT-Four, MR2 Turbo, Caldina)
Springs: single or double
Contents: springs, titanium upper retainers, shims or locating rings

SPRK-2081-MR

Brand - Type of Springs: SUPERTECH - SPRINGS SINGLE 59 LBS

1 in stock in Europe (72h lead time)

Available in stock in Europe (72h lead time)

Toyota 3S-GTE engine covered

The 3S-GTE is Toyota's 2.0 litre turbocharged four-cylinder, with 16 valves and twin overhead camshafts. It powers the Celica GT-Four (T16, T18 and T20), the MR2 Turbo (SW20) and the Caldina (T21 and T24).

Originally each valve has a single spring, 90501-32022 or 90501-35006 depending on the period, held by an upper retainer and by 90913-03021 collets. The kits replace the spring and the upper retainer.

SUPERTECH reinforced valve spring kit

Past the cam peak, the spring pulls the valve back onto its seat and holds it against the tappet. Too soft high in the revs, it lets the valve lift off, bounce and strike the piston: valve float.

The four SUPERTECH kits apply 262 N at the seat at 34.75 mm (single springs) or 329 and 343 N at 35.5 mm (double springs).

Valve spring kit technical specification

Part number	Brand	Springs	Outer / inner Ø	Seat pressure	Rate	Max lift	Kit contents
SPRK-2081-MR	SUPERTECH	Single		262 N at 34.75 mm		13.2 mm	16 springs, 16 titanium upper retainers, 16 shims
SPRK-2081-MR2R	SUPERTECH	Single		262 N at 34.75 mm		13.2 mm	16 springs, 16 titanium upper retainers, 16 shims
SPRK-TS1015-MR	SUPERTECH	Double	Outer 27.5 / 20.0 mm Inner 20.0 / 15.2 mm	329 N at 35.5 mm	53.8 N/mm		16 double springs, 16 titanium upper retainers, 16 locating rings
SPRK-TS1015-MR2R	SUPERTECH	Double	Outer 27.5 / 20.0 mm Inner 20.0 / 15.2 mm	343 N at 35.5 mm	53.8 N/mm		16 double springs, 16 titanium upper retainers, 16 locating rings

Valve spring kit fitting details

Part	Toyota original	Reinforced spring kit
Spring	Single: 90501-32022 (1987-1989); 90501-35006 (1990-1995)	Kit specific: SPR-TS1015-SI (single) or SPR-TS1015 (double)
Retainer	13741-88361 (1990-1995)	Kit specific: RET-TS60/MA2, RET-TS60/MA2R or RET-TS60/T1-B, titanium
Spring seat	13734-88300 (1987-1989); 13734-88361 (1990-1993); 13734-88460 (1990-1995)	Single kits: original retained, with SS-3025 shim. Double kits: SEAT-TS1015/1 locating ring
Collets	90913-03021 (1987-1995)	Original retained

Every kit supplies 16 springs and 16 titanium upper retainers. The single kits add 16 SS-3025 shims, placed under the spring on the original lower spring seat; the double kits add 16 SEAT-TS1015/1 locating rings for the inner spring. The MR2R references receive the MA2R retainer, which has a recess for the shim fitted under the tappet; the other two receive the MA2 retainer (single kit) or T1-B (double kit).

Installed height separates the lower spring seat from the upper retainer, valve closed. Each quoted load is exact only at that height: if it increases, after the head has been machined for example, the load drops in proportion to the spring rate. The table puts the four kits side by side. Heights and loads match the specification table.

	SPRK-2081-MR	SPRK-2081-MR2R	SPRK-TS1015-MR	SPRK-TS1015-MR2R
Installed height	34.75 mm	34.75 mm	35.5 mm	35.5 mm
Seat pressure at this height	262 N	262 N	329 N	343 N

Technical guide

Our brands

SUPERTECH, based in California, designs valvetrain parts for competition, and every batch goes through X-ray, ultrasonic and laser inspection before it ships. Its titanium retainers lighten the moving assembly of the valve while the spring load stays the same.

How to choose

A higher load keeps the valve on the cam when the camshaft is livelier, the rev limit climbs or the turbo pushes harder. Here that means 262 N at the seat for the single kits and 329 N or 343 N for the double kits, at the heights shown above. Stay measured: a spring stiffer than necessary wears cams and tappets.

Criterion	Key point
Choosing the load	The pound figure, 59, 74 or 77, gives the load each kit exerts at the seat; the table also lists it in newtons. Decide from your camshaft lift, the revs you aim for and the boost pressure: when one rises, the load has to follow, without going beyond what is needed. The single kits, closer to the original, suit measured builds; the double kits are for more extreme setups.
Single or double spring	The SPRK-2081 kits use a single spring, SPR-TS1015-SI; the SPRK-TS1015 kits use the double spring SPR-TS1015, whose inner spring adds stiffness. This double setup requires the valve guide boss to be reduced to 4.06 mm in height or less (0.160 in) to house the inner spring.

When reinforced springs become necessary

Camshaft with more lift than stock
Rev limiter you want raised
3S-GTE with a bigger turbo or more boost
Head rebuilt for track or rally use
Tired springs, or valves leaving the cam early

Compatible vehicles

Model	Engine code	Power	Years
MR2 II (SW20) 2.0 Turbo	3S-GTE	225-245 hp	1989-1999
Celica (T16) GT-Four 2.0 Turbo	3S-GTE	193 hp	1987
Celica Coupé (T16) GT-Four 2.0 Turbo	3S-GTE	185 hp	1988-1989
Celica (T18) GT-Four 2.0 Turbo	3S-GTE	203-224 hp	1989-1994
Celica (T20) GT-Four 2.0 Turbo	3S-GTE	242-256 hp	1994-1999
Caldina (T21) 2.0 Turbo	3S-GTE	190-261 hp	1997-2002
Caldina (T24) 2.0 Turbo	3S-GTE	260 hp	2002-2007

OEM part number (valve spring): 90501-32022 (1987-1989); 90501-35006 (1990-1995)

Important: this page covers the 3S-GTE only. The double spring kits require the valve guide boss, on the inner spring side, to be reduced to 4.06 mm in height or less (0.160 in).